Excavator This is always a great assistant in solving complex tasks in the construction, communal and industrial spheres, so the demand for such products always exists. But a full-fledged big excavator costs a lot of money, and therefore some are limited to special mini-excavators with excellent characteristics and performing a certain spectrum of work.
A mini-excavator is a small technique with a weight of from 500 to 6,000 kg, the presence of a tracked chassis and the possibility of digging at a depth of 2.5 meters. Small dimensions and a great direct engine allow you to transport an excavator to different places, some models are transported even by a trailer. The compactness of technology makes managing maneuverable, therefore the permeability in various narrow and complex places at a high level. The main advantages of such equipment can be attributed:
- Low fuel consumption;
- Bucket of various widths from 30 cm to 1 meter;
- Quiet work and compatibility with various attachments;
- High performance features, increase the capabilities of the mini excavator.
Scope of application
Most of the presented models are ideally compatible with attachments to perform certain tasks, so the scope of the small excavator is enormous.
- Coppe trench for water pipe, cable;
- Digging pools, small ponds;
- Correction of irregularities;
- Destruction of solid materials - stone, concrete, asphalt.
Best models
The range of mini-excavators is already represented by more than 10 manufacturers and multiple models, each of which has interesting features And it will help to make one or another work. An important role is played for a mini excavator sizes, because they show as far as the technique is powerful and productive. Among the most popular brands can be allocated: Volvo, Bobcat, Isuzu, Yanmar, Komatsu, Scorpio. We offer the three most interesting models.
Trailed Mini Excavator Scorpio
This is one of the simplest and easy models, the excavator is designed to grow small trenches (under the cable or for an artificial pond). Trailed mini excavators are a separate category, technique are not able to move independently on the ground and therefore transported to the place of destination by the car. The car serves as a tug, on the excavator there are two or four wheels. Also, the design assumes a small bucket, which is carried out by digging trenches. Be sure to each trailer model has a support by which the excavator hitch with the surface is carried out.
Excavator Scorpio is created in Volgograd, domestic machinery Ideally adapted to our conditions and presented at quite an affordable cost. Differs in small sizes, you can transport passenger car. The weight of the Scorpio model is 650 kg, while it is possible to pierce the ground to a depth of 2.5 meters. A bucket of a width of 16 to 45 cm is used, so there should be no difficulties with the ruin. The width of the excavator itself was 2.07 m, a completely comfortable workplace was created for the operator. There was an opportunity to immerse at an altitude of up to 2.2 meters, and the volume was increased for long work. fuel tank - up to 22.5 liters.
Kubota U25-3.
This representative of mini-excavators is considered a more serious model of a modern type with a lot of interesting decisions. The manufacturer initially created a model for use in small spaces, so Kubota U25-3 received modest dimensions with a length of 4,100 mm and 1,500 mm width. The final weight was 2,470 kg, which still belongs to this technique to the class of mini-excavators. The technique is standardly completed with a bucket with a volume of 0.08 cubic meters, the bucket width with the presence of a lateral tooth was 50 cm, without it 45 cm. Such buckets perfectly copes with the chicken ridge and aligning various surfaces, the maximum digging depth is 2820 kg. The technique is well combined with different attachments and therefore has decent performance.
Engineers create every detail in accordance with international norms, therefore in operation the technique is excellent and will serve for many years. The basis of Kubota U25-3 is a diesel engine E-TVC with water-cooled, has a rated power of 21 horsepower and rotation of 2,400 rpm. There are 3 cylinders, so the thrust and an applied effort at a high level. For long-term operation, a large fuel tank is installed on 28 liters.
- Maximum safety - for loading and unloading the excavator is provided by a system of hydraulic coordination, so the movement will be direct and uniform
- Economic engine - the company's branded engine has received a three-voice fuel combustion system, thanks to which the power is 100% issued, the vibration decreases, and the fuel consumption is one of the best among mini-excavators.
- Workplace - in the Kubota U25-3 model there is a roof and protection of the operator, so you can not be afraid of tipping or stones. Inside the cabin is convenient and equipped with a modern comfortable seat.
Mini Excavator MKSM-800
Domestic model with good popularity, produces Kurgan factory. The technique has a large set of features, compact dimensions and affordable cost. Designers were able to create an excavator that is easy to maintain and is available for repair, spare parts are available. Often use a mini-loader in agriculture, construction, loading or unloading, riveting trenches and water pipes. It shows the perfect efficiency in places where the standard large excavator cannot help. Maneuverable, powerful and affordable.
Deciphered the name of the ICM as a "multi-purpose communal construction machine". The figure 800 in the title describes possible loading capacity in kilograms. Today, technique can be used with more than 10 names of attachments, so the IMM-800 will help out in the most special cases.
You can control the technique from the operator's cab, which is reliably protected from tipping and hitting stones. Overview from the operator's cabin is excellent, so the excavator is very convenient in operation. Management occurs with two joysticks having a mechanical or electrical drive. The MKSM-800 model is considered the primary, 800H, 800K, 800A and 800A-1 modifications are also proposed. As standard, the MKSM-800 model is equipped with a diesel engine with a capacity of 46.2 horsepower and the presence of 3 cylinders. Cooling liquid, so you can work with the technique for a long time. The diesel engine has a Cummins A2100 designation. Regardless of the modification, the excavator has a fixed bucket width of 173 cm and the maximum height of unloading 2.4 meters. Management in the initial modification mechanical, model MKSM-800A is offered with electrical control.
Other mini-loaders
It is also worth highlighting the following good models that deserved positive reviews from Russian owners:
- Doosan DX55WA is a mini-excavator wheel model, suitable for digging trenches, quarries, unloading and loading bulk materials. One of the most versatile models has a power engine with a capacity of 54.7 horsepower, 4 cylinders and a volume of 3.3 liters. Pneumatic wheels allow moving on public roads.
Yanmar SV08 - The initial model in a ruler with a weight of only 1,035 kg, received a length of 3 meters and a corporate engine with minimal noise. Produced in France and therefore quality at a decent level. The technique received sliding caterpillars and a bulldozer dump with the ruins.
Video
The excavator loader became perhaps the most popular earthy machine. Most often there are domestic machines based on universal tractors. In recent years, tractor builders (about the Minsk Plant can be said with confidence) began the release of modifications with an adapted cabin with a flat floor and a swivel chair.
Imported loader excavators have ceased to be rare, the segment of imported cars is growing very quickly, and the market has the feature that they choose either the most affordable Russian or Belarusian car, or a functionally saturated, comfortable and aesthetic foreign car with fully drive, Two-three steering modes, a two-dimensional loading bucket, telescopic handle. Additional amenities of the operator, the term "driver" or "mechanic" with a foreign car somehow does not fit out. If we spend money, then have a maximum from them. But practical considerations are not discarded. The working equipment controls are chosen, as a rule, lever with mechanical bond, and hydraulic pumps - gears: with them it is easier, faster and cheaper in repair.
Among the suppliers of imported technology determined the leaders. This is a British private JCB company, for a long time associated exclusively with loader excavators, quickly gaining the revolutions of New Holland, Caterpillar, which still cannot break out, Komatsu and Volvo, focused on the bulldozers, and the second on the articulated dump trucks. In addition to them, Terex, Case, Hydromec, Dressta are represented in Russia, but their sales affects do not provide.
JCB.Since 2004, radically updates and expand its most popular product line. The main models 1cx, 2cx, 3cx and 4cx in 2004 were added Mini CX. In 2005, the new generation of 3cx and 4cx engine with the engine of own production JCB 444 was displayed. A month before Bauma 2007, the pre-Bauma's "home" event was presented to a conceptually new MIDI CX loader.
Today the lineup has six basic models, The number of modifications will translate in two dozen. Thus, the coating model 3cx is supplied in six modifications that differ in the engine capacity, working equipment (single or two-shimmer loading bucket, with a telescopic handle of an excavator or without it), the wheel size on the front axle and steering control. With the same wheels on both axes and three-mode steering, 3CX Super modifications are supplied. Modifications of the 2cx family, very popular in their homeland, more diverse. There are options where instead of excavator equipment installed a compressor or a three-point jamming mechanism and VOM.
The main feature of the excavators-loaders 3cx and 4cx new generation, the supply of which to Russia began in the same 2005, is, of course, the JCB 444 engine (4 cylinders, the volume is 4.4 liters), which received the DIESELMAX resistant brand. The basis of the current line is the engines with fuel system Bosch. COMMON RAIL.. Until the end of 2007, the release of the last model with a mechanical injection was launched, which also complies with the requirements of Stage 3A / Tier 3.
DIESELMAX engines develop the maximum torque at 1300 min -1, and the speed of rotation is limited to 2200 min -1. Large torque at low speed was one of the key criteria and reasons to host JCB for significant investments in the development and production. The torque gives the machine the power required to perform heavy operations on small revolutions, allows you to quickly respond to changing the load, reduces the duty cycle and reduces noise. Engine massive and hard. Cast iron cylinder block with boring cylinders in it is conjugate with a monolithic cast-iron support crankshaft. Block head is also monolithic and made of cast iron. The engine is aggregated with a new hydrotransformer with a red lock, designed for greater torque. In the hydraulic system, the pressure was raised by 10%, which not only increased the carrying capacity and the bulk force, but also reduced the dimensions and a mass of the hydraulic system.
The appearance also changed, and not only decorative. The composite hood is replaced by a solid, rising to the cabin. In the cockpit, externally the same as model Row 2002, some internal improvements were made. So, the steering column has already become coincided in width with a hood. The front wheels and the arrow are clearly visible. The insides of the cabin, as always, JCB is distinguished by catchy design made in gray-black tones with inserts under aluminum. The choice of two options for working equipment management systems - lever and multifunction joysticks. Joysticks are mounted in armrests and turn along with the chair - you can work by turning the chair side.
Family 2cx, including six main modifications, is different from the "senior" models overall dimensions, lifting capacity and cabin sample 1997 Machines 2cx are compact and maneuverable - all wheels managed. All modifications 2cx are supplied with wheels of the same size on both axes. The smallest model 1CX has common features with a loader with an onboard rotation of Robot - onboard turn and hydraulic transmission, but 1cx engine is in front, the workplace is raised and fairly spacious to install the swivel chair. The concept of onboard rotation gives significant advantages in maneuverability - turn on the spot. JCB has mounted excavator equipment for Robot loaders, but 1cx is designed precisely as a full excavator loader. Model 1cx is supplied with both open cabin and glazed.
New 2007 - MIDI CX Excavator Loader, as planning the developers, which occupied a technological niche between 1CX and 2CX. Exactly the same externally as 2cx and 3cx, the novelty includes many original technical solutions. First of all, it is a quick-consuming excavator hitch. Arrow, a frame with supports and control levers is made in the form of a single node, which operator may per lonerly remove and install other equipment in a few minutes, including an agricultural - the machine is equipped with the rear shaft of the power take-off and hydraulic connectors, the order will be installed on request.
The main loading bucket is also removable. MIDI CX is compatible with a wide range of hits manufactured for 2cx, mini-excavator model 803 and Robot loaders. Hydrostatic transmission With a complete drive, it provides a stepless speed set of up to 26 km / h. She also allowed to realize a tight layout of the compact machine. The MIDI CX is equipped with a 4-cylinder diesel engine with a capacity of 38 kW. A new excavator loader will be released in two versions - with ROPS / FOPS canopy and glazed cabin. For the first option, an excavator jacket with lever control is provided for the second - with joystick.
The first Eccavator-loader Mini CX Public saw on Bauma 2004. On Bauma 2007, Mini CX 4x4 Series II presented without unnecessary pump. MINI moves a 3-cylinder diesel engine, a hydraulic transmission, a model of 2004, drive rear wheels, Model 2007 All-wheel drive, controlled wheels front. MINI installed handle excavator JCB. 8015, so it has a full range of equipment for mini excavators. MINI CX is actually a toy and interest for russian market not yet.
What does JCB prepare? Two years at the "home" exhibitions show the conceptual model of an excavator "telescope" 4Ch TM, and it is not a fact that in 2008 the concept will be embodied into the serial model. The machine carries a two-section telescopic arrow, which is located along the axis of the machine over the hood. To compose the car in such a way, the engine was shone down, increased the wheelbase and applied the elongated arrow head board. Loader loader - 2.5 tons, lifting height - 5.2 m. Rear from the machine - "ordinary" excavator equipment.
Persecution of the product basket, arranged by CNH (Case-New Holland), gives results. Efforts are not blurred in four partially competing with each other brands, and concentrated on one - NEW HOLLAND. As in the case of mini-loaders, where New Holland broke out on the second after the Bobcat position among importers and heads a group of catching up, in the segment of imported forklifts, it captured second place after JCB.
Although NEW HOLLAND is a US brand, but CNH is belonging to the Italian spruit Fiat Group, the loader excavators produces the plant in the Italian town of Imola, the development is also Italian, especially since today's line is directly from the Fiat-kobelco line. That is, the Americans took only a signboard to maintain the sales of Italian technology in North America.
The current line of the New Holland LB90.B, LB95.B, LB110.B and LB115. B is actually repainted FIAT-Kobelco. The first three models are made on one platform and differ in the engine capacity 71 and 82 kW, size and characteristics of excavator equipment. Dimensions and capabilities of the "senior" model LB115.B are impressive. She has the same size wheel on both axes of the wheel and trust steering.
New Holland Excavator Loader can be found from afar on the characteristic form of an excavator boom and a straight loader. Hexagon, glassy on the perimeter with flat tinted windows cabin looks modern and stylish, and in general the look of the excavator-loader is harmonious and pleases the eye. However, the composite hood is clearly outdated. The interior of the cabin is a good, but this functionality only wins - nothing distracts, the eye does not cling to bright trifles. Cab rubbed with gray solid plastic, manufacturer quality and assembly of decoration parts at a high level. Managing work equipment lever. The joysticks of control excavator with a servo are equipped by order. Joysticks are installed on high columns and are not connected to the chair.
IN basic configuration Three "younger" models equip synchronized mechanical box Transmissions (KP) PowerShuttle 4x4 (four transmissions forward and four back). The clutch function performs a button on the gear lever. For the "senior" LB115. B - standard semi-automatic CP PowerShift 4x2 (four forward and two backwards) with a submit switch. The same KP is offered as an option for "younger" models.
On Bauma 2007, New Holland introduced upgraded models B110 and B115, performed on the same platforms. Their main differences are the engine CNH 445TA / EGH Stage 3A / Tier 3 with a capacity of 82 kW at 2200 min -1 with a battery injection system, turbocharging and intermediate charge air cooling. Several processed form of anterior counterweight in order to improve air access to the engine compartment. Composite hood design has been preserved. NEW HOLLAND sign on the windshield is designed, it is likely to improve the review. The design of the instrumental panels was refreshing, it became more catchy. Since the Common Rail engine controls the electronics, logical to replacing the speed adjustment lever with a rotating regulator.
Backhoe loader Caterpillar. Easy to learn from the rear by characteristic curved arrow of the excavator. Until 2006, the Caterpillar Excavators line could not be called complete - there was no powerful models With wheels of the same size on both axes. The D series was performed on the same platform, and the models differed from each other with a complete set. Reviews about her were very good. In particular, they said that in the frosty winter, the Winter, the CAT loader, as opposed to competitors, was started.
In January 2006, Caterpillar brought to the market a new series E. In the lineup was six basic models against four, added "senior" models 434e and 444e, which received the rear axle with controlled wheels and wheels of the same size on both axes. "Younger" models 422e, 428e, 432e and 442e supply with wheels different size, in standard equipment Control wheels front. Inheritance from Series D, the Caterpillar 3054c engine with turbocharging (for 422E - atmospheric, turbochards option). Compared to the series D, the hydraulic guide and geometry of the lever mechanisms of the loader, due to which increased the discontinuous force by 10%. Radically changed the design of the telescopic handle of the excavator included in the extended complete set. If machines D series, the telescopable section was inside the handle housing, then the series E is on the contrary - external case is put forward.
Models 422e and 428E in the basic configuration equipped with the mechanical KP PowerShuttle 4x4 and the lever controls of the excavator, model 432e and 442e - KP PowerShuttle and joysticks, commissioned by the semi-automatic CP AUTO-SHIFT 5x3. Joysticks and CP AUTO-SHIFT are included in the basic set of "older" models 434E and 444E. The joysticks are installed on the speakers separately from the chair - the solution becomes standard.
If you remember that the D Points of the D Points of the D Points are focused on the left side and are available through the hip folding half, and for more detailed access to the engine compartment, they must be armed with a wrench, then this situation has been somewhat somewhere. The hood cover rises entirely from the cab. The design of the cab is refreshed both outside and from the inside. The geometry of the cabin changed, the flat glasses were replaced bent, rear glass It became whole. Several modified the design of the steering column and the toolbar on the right side.
Line of excavators-loaders Komatsu. Includes five models - three models with front controlled wheels WB91R-5, WB93R-5, WB97R-5 and two (WB93S-5 and WB97S-5) with all controlled wheels. The Russian office is trying to emphasize the attention of buyers on the three most functional saturated models - WB93R-5, WB93S-5 and WB97S-5. They belong to the fifth generation, the release of which has begun in 2006 at the Komatsu Utility Europe factory in the town of Este (Italy).
The characteristic feature of this generation is the Komatsu engine on which the Iveco label can be found. Engines are not taken from another hemisphere, they are assembled here in Italy. Another interesting feature, useful for cold climate - preheatereating from an external source 220 V.
The appearance of the fifth generation has changed much, acquired modern streamlined forms, the cabin was equipped with large bent glasses that do not obstruct the review. The shape of the boom of the excavator is changed: it has become curved, and the bracket of fastening of the hydraulic cylinders moved to the middle.
Three models of interest to the characteristics are pretty close. "Younger" model WB93R-5 Complete wheels of different sizes on the front and rear axes, 4-speed mechanical CP PowerShuttle. WB93S-5 has all four wheel 24-inch wheels, installed PowerShuttle KP, on WB97S-5 - 28-inch wheels and semi-automatic CP PowerShift. Front-wheel drive turns on both manually and automatically. When the speed set, the drive turns off automatically, when braking it turns on again. On the WB93S-5 and WB97S-5 trink steering with all the wheels, on the "younger" model WB93R-5 - only in front. To switch the steering modes, you need to press two buttons at the same time on the control panel - this is protection against accidental switching.
Package of cabins differs mainly by the controls of the excavator. WB93R-5 and WB93S-5 are equipped with lever mechanisms, WB97S-5 - joysticks. The joysticks are installed on the speakers separately from the chair. Loader control lever is replaced with a multifunctional, aesthetically more winning joystick. The design of the instrumental panels and the location of some devices and switches so that access to them becomes easier.
Closes the top five leaders Volvo se. The company has long been engaged in the construction of tractor excavators on the basis of tractors and front loaders with an articulated frame, and since 1965, from the gate of the plant in Eskilstuna, not one generation of such cars was published. By the Third Millennium, Volvo began to prepare a new generation of loader excavators, going along the path that was laid JCB and Fermec. That is, an excavator-loader must have its own, intended only for it, the base machine, and not putting tractor or redoned frontal loader. The development started in fact from scratch took about four years, and in the spring of 2002 the company presented the first models of the modern line LB70 and LB71. Production deployed at Volvo factory in Wroclaw, Poland. In 2004, the line was expanded by LB60 and LB61 models, and in 2007 there were modifications of LB71 Plus and LB61 Plus. The LB60 and LB70 models differ from the remaining excavator equipment with an unlocked digging axis and folding supports.
The total 4-cylinder 4-liter Diesel Volvo D4D is aggregated with a synchronized mechanical CP PowerShuttle 4x4. The engine power varies from the model to the model of increasing. For LB61 Plus, LB71 and LB71 Plus offer advanced configurations with semi-automatic CP PowerShift 4x4, excavator control joysticks and a two-dimensional loading bucket. For machines equipped with the mechanisms of rapid shift of excavator and loading equipment, a hitch is available similar to the sizes of excavators and loaders.
The appearance of the excavator-loader is made in the spirit of modern trends, the cabin is spacious and comfortable, but the interior looks old-fashioned today, especially the wide front panel.
For users of Volvo equipment: Oils under the Volvo brand produces ExxonMobil. Own mobil oils Have a volvo tolerance.
Excavators refer to the category of universal techniques, with the invention of which a person facilitated his work on the removal and movement of the soil. Understanding what an excavator is, what is the difference between modern types of cars and what purpose are, it is important for right choice Models.
What is an excavator
The excavator is the form of a self-propelled machine, the main purpose of which is to carry out land work, moving the mountain mass, actions for loading and unloading the soil and other raw materials into vehicles. Today, this technique is widely used in the field of construction.
The first excavator was invented in 1836 by American William Smith Otis, who later received a patent for his invention. The first models were based on a steam principle of action. Today manufacturers offer various options, including with fuel, electric and mechanical drive.
Allocate two groups of self-propelled machines:
- multi-loving, based on the continuous principle of operation;
- single-line, assuming cyclical execution.
Multifungal models have greater performance, but the single-line machines are popular in relation to the universality of their use. Such structures can be applied on earthy, loading, unloading and rock work.
The land unit may have a tracked or pneumatic foot. The running equipment of the walking type is used only for single-loving excavators. The acting mechanism of the machine can be driven various models Engines:
- steam;
- electric;
- diesel;
- carburetor.
Most of modern excavators Equipped with engines with a diesel and electrical principle of action, as they are considered more economically more profitable. There are single-engine and multi-component models. The choice of the mechanism is carried out on the basis of the working and appointment of technology. In the construction of roads and the need to often move the car with diesel excavators.
When operating a car in a quarry or other place, which involves a permanent place of activity and the presence of a stationary power supply, prefer electric engines. Such a choice is associated with the cheap electricity and the lack of the need for a periodic supply of equipment with fuel.
The movement of the mechanisms can be made by various types of drive:
- mechanical;
- hydraulic;
- hydrodynamic;
- electric;
- mixed.
On some models with a multi-modular type of drive, a combination of a mechanical and electric type of actuator is used, which allows the machine driver if necessary, adjust the speed of work depending on the load.
Each group of self-propelled machines has smaller classification features in the form of the sizes of the buckets, engine power and destination. Based on such characteristics, buyers often make their choice, focusing on the future scope of application of technology.
Applying excavator
According to experts, about 40-45% of earthworks are carried out using excavators. The widespread use of the excavator is due to versatility, maneuverability and high productivity of the self-propelled machine. The technique is widely used when performing the following activities:
- digging kitty;
- copper trench;
- formation of embankments;
- moving various types of materials;
- unloading and loading of bulk and lumpy raw materials;
- performing overlapping works regardless of the type of soil.
Excavators today are widely used in the construction of dams, dams, highways, railways. Self-propelled machines are considered indispensable for mining work.
The following rules for applying single-line models are generally accepted:
- construction - have buckets with a capacity of up to 3 m³, intended for excavation works, loading and unloading actions in the construction industry;
- career - characterized by the tank of buckets from 2 to 8 m³, are used in careers when developing ore deposits, coal, rock breeds;
- the extended - the container of the buckets can exceed 6 m³, are used in the development of the upper layer of soil, mining layers.
Universal single-line models make it possible to change the work equipment and are more often used during construction. Special technique does not have such an opportunity, it is equipped with a large container buckets without the possibility of replacement and is often used when working with soil and rocky rocks.
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█ The world's best mini excavators. Buy and choose. (Top 10 Overview)
Mini excavator is small and pretty easy machineallowing you to quickly reach the construction site. However, despite compactness, the technique becomes a real assistant in organizing earthworks. To date, the development of hydraulic systems, improved specifications Allow mini excavators to get closer as much as possible, and in some cases surpass their senior fellow.
In certain situations, and on a number of specific construction sites, we can play on hand not only a small weight of a small excavator, but also its compactness that directly affects its maneuverability and accuracy in work. For example, on narrow urban streets, in low-rise (cottage) buildings, with the foundation of the foundation on aesthetic garden lawn. Mini excavators with the so-called "zero crash" (Zero Tail Swing) will allow you to work in a limited space without clinging for obstacles. In addition, the low mass of the machine will save your lawn and other elements of landscape aesthetics. Unfortunately, in the case of imported mini excavators, including a problem with the cost of customs clearance, a utilization fee, which in turn does the price of the transcendental price. Business on a mini excavator is an interesting thing, and if you go with the mind, you can work well. So what mini excavator is better?
Mini-excavator: what to pay attention to when choosing?
Despite the fact that among earthmoving equipment, the mini-scabers are the most compact, their mass is quite significant. This class of technology includes cars up to 10 tons. Despite the external similarity with heavier models, their functions can sometimes seriously differ from the "giants". We turn to the parameters of this type of technology, which first of all it is characterized.
-Configuration arrows and cabins
The excavator arrow is attached directly to the housing of the excavator or its cabin and keeps the shoulder with the bucket and mounted equipment. There are different configurations of the fastening of the boom. For example, if the boom is fixed, it is attached directly to the excavator housing, and moves only when the machine turns. If the arrow is moving in a horizontal projection - it gives greater mobility and maneuverance when digging.
In addition, there are three options for departure of the tail of the cab of a mini excavator: zero (zero crawling cabins), minimal departure and full departure. The technique with a complete departure is hard to use in a limited space. On the contrary, the system with zero crash of the tail of the cab is ideal for a limited space. Although cabins with minimal departure give a good result when maneuvering in a closed space.
- Engine power and cab design
The mini-excavators are mainly installed diesel engines, the power and the definition of which in turn determine challenges, as well as strength and hydraulics. In addition to the power of the engine in L.S. (kW), matter the number of cylinders and torque. Mini excavators' cabins are open and closed. Of course, the closed cabin is more popular, as it protects the operator from bad weather, dust and dirt on a construction site, however, the cost of such models is in most cases higher.
- chassis and caterpillars
It should be noted that the overwhelming majority of mini excavators have caterpillars as a propulsion (with the exception of a narrowly specialized segment of non-intelligent towed trailed mini-excavators, which we have written earlier.
Caterpillars are installed rubber and steel. Both species of caterpillars have its advantages and disadvantages. For example, steel caterpillars provide greater patency and have greater strength. However, rubber (due to its relative softness) causes less harm to the lawns, sidewalks, a blocking with landscaped work. The chassis is under the excavator body, leading to the traffic of the caterpillar and the car.
The chassis in small excavators is two types: fixed and movable. The first is significantly wider than the excavator housing, which gives additional stability. Nevertheless, in some cases, this parameter will limit maneuverability and mobility in closed spaces. The movable chassis makes it possible to change the wheelbase with the help of hydraulics, narrowing it to the width of the machine housing.
- Hinged equipment
In addition to the wide range of lubricated size and shape, the operator can use attachments operating from the excavator hydraulic system, such as a yamobur or drilling rig with various augers, a hydraulic hammer for crushing stone, asphalt or beto, and another hitch. Special cargo plugs are also used to move logs, stones, construction trash. In addition, sometimes the mini excavator is used as a mini-crane.
If your choice fell on a mini excavator, and you want to buy or take it for rent, leasing, credit, this technique will pleasantly surprise you with your capabilities. As mentioned above, such a car will show itself well on narrow streets and will retain a lawn by performing a wide range of earthworks.
And if you are limited in the budget and can not afford a new technique, then our review will help you how to choose a mini excavator bu.
Mini Excavator Bobcat E32I T4
This model is a traditional mini-excavator with tail reversal. It is available in three configurations: standard, with an elongated arrow and with a sliding arrow.
This unit has a mass of 3260 kg in the configuration with the base boom. Base version dimensions make up: 4.66 meters - length; 1.52 meters - width and 2.43 meters - the excavators are set by a diesel engine with a capacity of 24.8 hp. At maximum turns of 2200 per minute. More loaded versions with an elongated and sliding arrow are equipped with turbocharged power units due to the increased mass of the machine.
The speed of the described model of the mini-excavator is 4.5 km / h. The angle of rotation of the boom is 75 degrees left and 55 degrees to the right, which is associated with the design of the rotary hinge. The depth of digging varies from 3.1 meters to 3.9 meters depending on the arrow design in the version you selected.
All three versions in the standard layout are offered to buyers with rubber tracks, but the option of installing steel tracks is available for wanting. As previously mentioned, the unconditional advantage of rubber caterpillars is their "anti-vandality" on lawns, a fragile blocking and on some other surfaces. However, steel caterpillars give better permeability and by themselves significantly exceed rubber threatening and durability.
The mini-excavator Bobcat is offered in versions with an open cabin with a roof or with a fully closed cab. The cabin has air conditioning with a stove, radio, comfortable seat. The dashboard informs the operator about the engine speed, the coolant temperature, there is a fuel level indicator, a meter meter and so on. As an option, it is possible to install a more technological dashboard with a color display, invincible launch and a throttle position indicator.
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The perfectly developed hydraulic system of the E32I machine provides a calm and smooth management of the technique, allows you to safely switch between different functions in accordance with the mounted mounted on arrow (for example, a hydrobur, hydraulic hammer and so on). The hydraulics control mode is determined by the operator of the mini-scale, based on the installed equipment and allows the machine to respond differently to the movement of the pilot joystick.
Bobcat offers various types of hits. It's bug, buckets different types and sizes, bump, special grasp for logs and construction waste, bulldozer dump, hydraulic scissors and others. Quick disconnect hydraulic connections and the X-Change Bobcat system will allow you to comfortably and quickly replace the necessary attachments.
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E32i models with an elongated arrow will definitely give additional features Miniexcavator, however, the standard tail departure of these models limits the maneuverability of the car, in contrast to the models of competitors with a minimum or zero tail.
Mini Excavator Caterpillar 301.5
The described model is mini-excavators of the so-called starting (initial) level. This mini-excavator weighs 1672 kg. It is easy and compact, can work on easy-damaged surfaces (lawn, paving), as well as under the tilt up to 30 degrees, which certainly gives additional features. The gearbox has two speeds reaching 2.25 km / h and 4.34 km / h, respectively. Obviously, the first speed is essentially a worker, and to move on the workplace from the object to the object it is more convenient to switch to the second, unless of course "accelerate" will allow the landscape. In addition, the presence of two speeds allows you to use a variable of craving depending on the type of surface and the properties of the soil.
17,4-strong diesel atmospheric installed on the machine force aggregate Water-cooled CATERPILLAR 3003, having 4 cylinders reaching 2,200 revolutions per minute.
The arrow has such an angle of rotation at which the operator is perfectly visible to the digging process. Cat 301.5 has a standard tail departure of a cab hanging over caterpillars. With the length of the caterpillar of 1.4 meters, a significant crash departure can interfere with working in a limited space.
The buyer proposes two options for the operator space of the operator - this is an open canopy and a closed full-fledged cabin. In Oyah, options are provided with robic hanger, glove box, working sensors and indicators on dashboard. The seat is available in two versions - vinyl and fabric. Obviously, the vinyl seat is more resistant to nature whims and is suitable for a vest with a canopy. On the contrary, a more comfortable fabric seat is an option for a closed all-weather cockpit. Of course, a more expensive version of the mini-excavator with the cab has additional optionsIn particular: the stove, defrostor, internal lighting and wiper. There are no some options available for competitors, for example, no air conditioner, radio, invincible start, color screen. However, whether such "grazers" are needed in a shredder - a big question.
The model provides the use of additional attachments. These include various types of buckets, borants, hydraulic bumps. Additional hydraulic equipment is the original, called Quick Coupler Caterpillar. However, this "Origality" will not compromise you without refinement to connect freely optional equipment Funny from the brand Cat.
Model 301.5 is not among competitors the easiest or most powerful, but its strength is enough to close to the performance of full-sized machines, and its relative ease will allow you without fears to drive an excavator to your well-kept country site with landscape design. Its substantial disadvantage, as mentioned above, is a significant cabins. However, this constructive feature It is also characteristic for many other fellow travelers of neighboring brands.
Mini excavator Hitachi ZX10U-2
The model is a small excavator with a zero craft tail (Zero Tail Swing), the Yanmar motor and the width of the caterpillar database. This is a rather lightweight excavator weighing a little more than 1,100 kilograms, which has the following dimensions: 2.96 meters - length and 1.46 meters - width.
This little excavator carries a powerful turbocharged Yanmar brand engine. The diesel power unit has three cylinders, reinforced turbine. Engine volume - 845 cm3, Power - 12.7 hp, Maximum revs - 2100 per minute. Such parameters of the power plant allow you to reach a speed of 4 km / h, while the speed of movement is 2 kilometers per hour. The fuel supply in the tank is 19 liters, the hydraulic system has a volume of 25 liters.
Hitachi ZX10U-2 has a radius of an electric cabin of a cab of 0.8 meters, which makes it possible to attribute it to the technique with zero departure of the cab tail, because with such parameters, the cab does not go beyond the gabarite of the tracked propeller. As it was said in joining our review, such a configuration is ideal for working between walls, trees, that is, in any limited space. In addition, this convenience is complemented by an adjustable width of the tracked base, which allows changing the actual width of the machine from the maximum one - 1 meter, to the minimum - 90 centimeters. Of course, a wider base gives greater stability, but in some cases, for example, if necessary, drive into a narrow doorway, this function is simply indispensable.
This mini-scab is quite limited by the amenities of the operator. The car does not even have a canopy, not to mention a full-fledged closed cabin. In stock Only the rear folding safety arc. With such features, keep in mind that protection against bad weather and building dust is essentially absent, which is quite essential for Russian latitudes.
From the facilities of the pilot there is a safety belt, a 12 volt socket, backlight. There is no stove and air conditioning, no radio, no hangers for working clothes. There is not even a cup holder. In fact, in addition to levers (joysticks), pedals and triggers, there is only an analog dashboard in the operator space. Dumping the excavator is adjusted mechanically and does not have a hydraulic line. The machine has the driving part of the tractor type on the rubber-tracked propulsion, which is convenient when working on an easily damaged surface - a lawn, pavement, paving. The chassis has three supporting rollers.
With a significant lightness of this excavator, the Hitachi model does not have a lack of power, and the zero wave of the tail of the cockpit allows you to work in a closed space. In addition, the variable latitude of the base allows you to pass especially narrow areas on a construction site. The excavator rental is most likely to be cheaper, since the car is easily transported in a simple passenger car. In fact, the only substantial disadvantage of this Japanese excavator is essentially the lack of any amenities of the operator of this mini-excavator, however, the price of a mini-excavator greatly wins in the fellow.
Mini Excavator John Deere 50G
This mini brand excavator John Deere. It has a mass of 4790 kg, which is not so little for the excavator of this class. However, this feature is more than compensated by a spacious and comfortable cabin of the operator, large and efficient working tools, as well as the powerful railway engine of the world leader Yanmar.
Reverse our gaze on power installationInhaling life into it is pretty heavy among the constructions. So, this is a diesel engine yanmar with a volume of 1.6 liters, having 4 cylinders, corresponding to all global environmental and technical standards and class heavy engines. This unit provides 36 "horses" forces at 125 Newton / meters of torque and revolutions up to 2400 per minute.
From the power of the engine, other features flow, in particular, despite the fairly large mass of the excavator, it has a rather greater speed, which "classmates" of our hero are unlikely to boast. On this compact excavator, you can ride with the breeze, disperse up to 6.77 km / h. At the same time, its minimum speed is 4.18 km / h, which exceeds maximum speed Any close analogue.
We pay special attention to the tail departure of mini excavators, which, in our case, is zero (or minimal, depending on the configuration), which, you see, for such an impressive car is an extremely important indicator. This reduces the risk of damage to the tail of the cockpit at the construction site, and also allows our mini-special scavenger to maneuver in a limited space.
On John Deer 50G are installed rubber caterpillarsHowever, unlike analogues, they carry steel cores, which significantly increases their service life. At the same time, the rubber propulsion retains all its advantages on a gentle lawn or a historical fragile blocking. This is especially true, given the mass of our hero - almost 5 tons! In addition, it is possible to install pure steel tracts, but it is better to do not go to the lawn with them without anything needed. There is also a variant of steel caterpillars with rubber softeners.
Comfortable cabin is just our case, because 50G carries all the amenities necessary to the operator. "Steering cutting" is spacious, has a comfortable entrance, anti-skid wrapping. There is a cup holder, a 12-volt "cigarette lighter", climate control (!) And display, showing hours, as well as sensors-indicators of the engine level and hydraulic oil. In the cockpit, both mechanical and hydraulic control of the machine is present.
The compact excavator has control levers with a short convenient move, the arrow of the pendulum type and folding pedals, a reduced transmission lever and other amenities within reach. For the installation of mounted equipment, the mini excavator has an original BRS system, which unfortunately allows you to work only with brand hits John Dir.
In conclusion, I would like to say that the mini excavator John Deere 50G is a powerful multi-functional apparatus, which in its functionality and capabilities closely close to the class of large excavators, in fact, rather to the middle of the size class of midi excavators (Mini Excavator Strong & Heavy ). Its absolute versatility attracts attention. For this, there is a powerful engine, and the zero taking of the tail of the cabin, rubber or steel tracks. However, its size, mass and cost is still great for a compact excavator. But if you still solved this mini excavator to buy, and not take, for example, for rent, you will not regret it. This is a great car!
Mini Excavator Kobelco SK35SR-5
The Kobelco SK35SR-5 mini excavator is a small excavator with a zero tail departure, equipped with the Yanmar engine. This apparatus has a complete set with a canopy and a full-fledged cab.
Its mass is 3580 kg in version with a canopy and 3720 kg from the cab. Machine dimensions: length - 4.72 meters, height 2.56 meters. The volume of fuel tank 45.5 liters tank, the volume of the hydraulic system is also 45.5 liters. If you compare this excavator with most of the other ministers, it is rather heavy and very powerful for its category, belonging to the so-called category. Mini Strong & Heavy excavators.
This apparatus is aggregated by three-cylinder four-stroke diesel engine With direct injection and water cooling. This power unit issues 28.4 hp. With a revolving maximum 2400 / minute. The achieved power allows you to move on this heavy machine at a construction site at a speed of up to 4.5 km / h. In the usual mode of movement, the technician maneuver at speeds up to 2.6 km / h.
Thanks to the zero departure of the tail, the cabin of this mini excavator does not go beyond the body, which allows it to be freely rotated in narrow places, without fear of damage to the cabin and walls or trees. Arrow excavators slightly shifted from the center, which allows it to dig in parallel caterpillars without changes in the width of the caterpillar base. In such a layout, it is easier to cuddle to the wall and dig a trench with minimal maneuvering. The running part of SK35SR-5 is not regulated (fixed base in the width of the caterpillars), which may in some cases make it difficult to pass into narrow places.
You can buy a mini excavator with soft rubber tracks, as well as with steel trackers having special rubber inserts. The second option is essentially a compromise solution between softness and durability.
The excavator cabin has all the necessary amenities, such as a comfortable seat, seat belt, backlight, robic hanger and an additional armrest. However, it certainly lacks stoves, air conditioning and radio.
As shown by the practice of using this machine, the technique is reliable, unpretentious, copes with a wide range of tasks in cramped conditions. In fact, its only disadvantage is stability problems that are compensated by the presence of counterweights. The price of a mini excavator makes think about the feasibility of acquiring it. Look at how much mini excavator costs, and maybe you will satisfy alternative option - Rent a mini excavator. Or try to find such a device with mileage, but taking into account customs clearance, utilization collection, the valve can also bite. However, this dilemma is relevant for the majority of small excavators presented in our article.
Ultra-compact microexcavator kubota k008-3
Model K008-3 Ultra-Compact Weighs 997 kg. Its length is only 2.74 meters, height - 2.23 meters, width - 86 cm, which is generally a bit even for our compact family. This microxcavator is easy, agoned, but is quite powerful for small construction sites.
The width of the caterpillar base is regulated in the range from 72 to 86 cm. As already mentioned relative to other models of mini excavators of this class, the variable database of the propulsion is beneficial on maneuverability in doorways, between trees, in narrow corridors. You can also narrow off the excavator, making it in width less than the width of the caterpillar base, which will also add maneuverability to you.
A simple lever control system will allow you to easily switch from changing the width of the blade to the change of the width of the tracked base. The excavator is equipped with rubber tracks without the possibility of installing steel, which, on the one hand, together with its low mass makes it indispensable on the refined area, but on the other hand reduces the durability of the chassis (wear of rubber caterpillars).
Our mini-excavator is equipped with a three-cylinder diesel engine of 10 hp Of course, at first glance, such a minor power may seem insufficient to us, however, with such a small mass of the car, it is enough. The excavator has the ability to quickly access the radiator, battery, fuel filter, coolant and air cleaner.
The K008-3 model has a two-speed transmission with traffic speeds: 2 and 4 km / h, respectively, each speed has a separate pedal. Technique comes without a cabin or canopy. There is a feeling that the Japanese on their excavators consider these options unnecessary, which we can observe both other excavators from the rising sun. As a security measure, there is a folding arc that does not have a roof. The dashboard itself has only a cooling fluid temperature indicator in the form of a warning lamp. Technique is certainly interesting, but will anyone want to buy a mini-excavator of too small and without special amenities for the operator when there are more powerful and productive competitors?
New Holland E18B CD
The small E18B New Holland excavator is a minimal cabin with a minimum crash. Comes in budget configuration with a canopy and in the top with the cab. The mass is about 1.8 tons, and what the model name is hinted transparently. Such a lot is unlikely to allow the delivery of a mini excavator to the object on the usual light trailer. Drive the excavator to the trailer on the dimensions you will be able, but if you will go so. Here you will obviously need a platform for the transport of a mini excavator or a passenger trailer auto transport. Dimensions from the cab: 235 cm - height and 365 cm - length.
Three-cylinder, four-stroke, diesel power unit Mitsubishi. with direct injection issues 15 horse power At 2100 revolutions per minute. This distinguishes it from most fellow, preferring Yanmar engines. The hydraulic system accommodates 15 liters of oil and works under three pumps. The hydraulic motor installed on the reverse rotary device (crown) of the excavator allows 9 rpm. The angles of force turns relative to the cabin make up 80 degrees left and 45 degrees to the right.
A mini-excavator has a tracked propulsion (in the basic configuration it is an excavator on rubber caterpillars). As repeatedly mentioned above, rubber caterpillars have anti-vandal properties that preserve the lawn or a blocking. In mathematical expression, the pressure of the excavator to the surface is one kilogram per square centimeter. However, the strength of the rubber tracked propulsion in comparison with the steel, leaves much to be desired. Replacing the caterpillars - not such a big problem. The main difficulty is their high cost. However, you can always find Chinese counterparts in the satellite. The base velocity is 3.54 kilometers per hour, but there is a reduced transmission - 1.8 kilometers per hour.
Unfortunately, it is necessary to recognize that the New Holland E18B is a rather slow excavator (both at the speed and speed of the tower). In addition, the presence of an departure of the cabin, albeit the minimum, shyles it in movements. However, the compactness and relative ease of the model will allow you to perform a wide range of earthmoving tasks. Of the advantages, it is possible to note the variable tracked database along the width (which is not unique for this segment of mini-equipment) - the transverse envelope will vary from 133 cm to 99 cm, however, when you reduce this parameter, you lose stability.
Of course, the version with a canopy differs in comfort from the "Cabin Modification", but the version with the cab does not have an air conditioner, racks for robes, work light, radio and seat belt. However, the window is not such a problem, but the stove, which is certainly installed in the cabin, will play an important role in Russian expanses. In addition, instead of the E18B dashboard, it has external hydraulic and fuel manometers. Hinged additional equipment on rapid drives (BRS) is provided by the manufacturer.
Cheap Buy such a mini excavator will not work. The price of the mini-exercavator on the official website must say, bite. The market for this technique will rather small. Maintenance will be not cheap, however, as well as all the models listed in the article. However, this is compensated by the high reliability of our kids.
Diesel single-loving excavators relate to category building machines Cyclic Action and are agricultural gauge-loading mechanisms intended for mining, as well as ground removal when digging kitty shoes or trenches
Excavators, like all cars created by a person, are different between themselves and are divided into seven dimensional groups. To the first, for example, there are earthmoving machines with a production mass from 3 to 6.3 tons, and to the seventh - mountain, career excavators weighing 100 tons and more.
Our today's review is devoted to miniature machines, the existence of which, apparently, did not know or did not suspect the compilers of the classifier of this technique.
We are talking about single-loving full-time excavators with the production mass to one ton. Of course, such cars will not see so often so often in our building organizations, but, nevertheless, they are already on sale - both new and used. Why do they need and what are the prospects for mini excavators in the Russian market?
When the size matters
It is believed that mini-excavators first appeared in Japan - in a country where there are not so much free space, and where people live with growth below average. But from the children's years I perfectly remember that "two soldiers from Stroybat are replaced by an excavator." Yes, the poor Japanese, it can be seen, just did not know this, so they began to design a mini construction technique. Pioneer in this direction has become japanese company Takeuchi. MFG. Co. Ltd., which was founded in 1963, and since 1971, the production of mini-excavators has already unfolded. In the late 70s, the firm became the first supplier of this equipment to the American construction equipment market. Maybe someone from the "titans" and "giants" of construction engineering this topic then seeing non-serious, but as the life showed, these construction mini cars have become quite popular throughout the world. Now such equipment is released in large quantities almost all European, Asian and American firms, and the company Takeuchi and today specializes mainly at the production of mini-excavators, mini-loaders and low-tonnage tracked dump trucks.
The main advantages of compact excavators is that this mini-technique is capable of working in very constrained conditions when each square centimeter on the account. The following, and it is important - this is saving fuel and means for depreciation, as with relatively small volumes of construction work (for example, with individual construction, cable laying, repair, etc.) such an excavator will be uniquely more efficient. And the latter is the exceptional mobility of technology with the prefix "mini", that is, the builders have the opportunity to transport the excavator on vehicles Middle lifting capacity, without the use of heavy trucks and coordination with road inspection.
Where you can use mini excavator
Mini-excavators are usually applied in works inside buildings in the destruction of partitions and overlaps, for digging small trenches under the telephone cable, in parks and central quarters, when it is necessary to minimize the destruction of an existing landscape. They can be used in tunnels and even in the holds of ships. Just imagine, such a baby calmly goes into the usual doorway and go down to the basement of the building! The unique hydraulics of some models allows to achieve digging depth of 1.6 m.
Design
According to the design, one-photon excavators are not very different from their older brothers, they are equipped with a diesel engine, a hydraulic system, a tracked propulsion, a rotary platform and replaceable working bodies. Often the chassis in mini-excavators has a variable width of the gauge. This correction takes place with the help of a built-in hydraulic line: in the transport position it is minimal, in the working - maximum, and it is done to increase the stability of the excavator.
Returning to the Japanese leader, I will say that all models of mini-excavators Takeuchi are equipped with rubber and rubber-metal tracked traccles that minimize vibration even on the solid ground. In addition, rubber tracks make it possible to work on such delicate surfaces as lawns or asphalt without damage to them. The batch design of the tracks enhances the grip with the ground, which makes it possible to significantly extend the life of the excavator chassis and eliminates the possibility that the tracked trunk tracks with a guide even on steep slopes.
The emergency engine shutdown system automatically returns its operation to idling in the case of increasing the temperature of the coolant and completely turns off if the lubricant pressure in the engine is over. The speed selection valve of the operation mode allows you to quickly change the excavator control modes at the discretion of the operator, and the telescopic arrow increases the radius of the work performed. The built-in engine brake is triggered from one touch and allows you to reduce fuel consumption, especially when the excavator goes to mode idle move. Among other technical solutions - a restrictive boom device, fully eliminating the erase of cables about the fragments of construction waste, disk hydraulic parking brakes, rear headlamps and cast-iron counterweights.
Workers
These building mini cars are usually equipped with a reverse shovel, since their main task is to dig pits and trenches. In this case, the platform allows the excavator booster to a fairly large angle. Almost all kids have a dump. Its presence allows you to perform a small bulldozer. But you should not expect something significant from him. The design of the mini-arrows allows you to install attachments on it for various purposes. These include hydraulic hammers, borants, hydronomas, etc.
Place operator
The operator's workplace, which usually equip the mini-excavator, is three types. Often it is identical to an ordinary excavator, and the mini-car can equip cabins, protective arcs with an awning, and sometimes - just, without frills. It is less likely to meet the layout of the workplace as a biker seat on a motorcycle. And in very rare cases, there are structures in which the operator is located, standing behind a motor compartment, and the excavator control levers are located in front of it on the power plant housing.
Speaking about the management bodies, it should be noted that mini-excavators are equipped with both control levers (more common scheme) and joysticks.
Abroad to deliver mini excavators to the place of work commonly used all-wheel drive carssuch as heavy American pickups, coupling with a special trailer. In our country, a small construction machine is transported in the bodies of the onboard truck, in rare cases - on the auto-avacuator.
Model manifold
Miniature excavators today produce a fairly large number of machine-building companies. Among the leaders - Caterpillar, Therex, John Deere, Case, Coyote, Airman, Bobcat, Komatsu, Hitachi Construction Machinery, Yanmar, Takeuchi MFG. Co. Ltd., IHI (Japan), Volvo Construction Equipment, JCB, Daewoo Heavy Industries, Avant (Finland), Gehl, Wacker Neuson. In recent years, mini-technician Chinese manufacturers appear increasingly. However, it does not occupy a significant position in the Russian market and CIS countries.
Firm Kubota. Multiple models of mini-excavators with a production weight up to 1 ton are manufactured. This today japanese manufacturer Releases a whole range of compact construction equipment, mini-tractors, diesel engines, generators, conveyors, lawn mowers, etc. According to the scale of its production, statistics says, and it is such - recently, more than 50,000 mini-excavators and other compact construction equipment of the Kubota brand are being implemented annually around the world.
The new series of compact excavators Kubota KX-3 is a promising solution for the 21st century construction equipment market. When developing a series of KX-3, emphasis was placed on the development of three main characteristics: improvement technical parameters, convenience in operation and environmental friendliness. The Kh-3 family includes cars with a standard counterweight, and among them - the most-selling model of the mini-excavator KUBOTA K008-3 with an operational weight of 850 kg (without a cabin) in the world. Model K008-3 has a digging force of 9.8 kN (1000 kgf), maximum digging depth of 1705 mm, an extrusion height of 2870 mm, equipped with an engine Kubota D772-BH-3 with a capacity of 10.2 hp. and a bucket with a volume of 0.018m3.
Quickly raised bucket pins allow you to easily replace attachments, without using an additional tool. In the excavator K008-3, it is not necessary to produce a wiring of the hydraulic system - it is already equipped with outputs for its maintenance and the connection of the hydraulic hammer. Adjusting the width of the rubber caterpillars of the excavator makes the operator, using just one lever. This allows literally in a few seconds to move from the gauge of 700 mm (for the passage of narrow places) to a rut of stable 860 mm.
Among the mini-excavators of the U series with a shortened counterweight, the model U10-3 is distinguished by a mass of 990 kg (without a cabin). It opens up new prospects for the development of the construction equipment market. This machine is characteristic of such qualities such as ultra-compactness, excellent smoothness and convenience of work, as well as greater performance. The effort of digging a bucket with a volume of 0.024 m3 is 1060 kgf, the maximum digging radius is 3380 mm, limit depth digging - 1800 mm.
Next Japanese car - crawler excavator without cabin Hitachi. Zaxis 8-2b with a bulldozer dump. Its operational mass is 810 kg, the bucket capacity does not exceed 0.016 m3 (equivalent of one and a half vest), the maximum depth of digging is 1.53m, and the digging force on the bucket is 960 kgf. The excavator is equipped with a diesel engine Kubota with a capacity of 7.8 hp
Famous Japanese company Komatsu.Having ranked second among world engine builders, also produces mini-excavators with a mass of up to one ton. This is the Komatsu model of PC09-1 with an equipped weight of 890 kg and a bucket with a volume of 0.025 m3. Despite its small sizes and tonnage, this mini-excavator has all the advantages (high performance, reliability and efficiency) peculiar to its larger brethren on the prestigious brand. Excavator RS09-1, equipped with a diesel engine with a capacity of 11.4 hp, can get the ground from the depth of 1.5 m.
German firm Wacker Neuson. Kramer. Releases Neuson 803 mini-excavator with an operational mass of 935 kg. A non-vacable construction mini machine is equipped with a Diesel engine of Yanmar with a capacity of 18.6 hp, rubber tracks, an excavator bucket with a volume of 0.03 m3 and a chassis with a variable width - 700/860 mm. Neuson 803 excavator has a digging depth of 1.73m.
British company JCB. produces 11 models of compact excavators. Among them, the JCB 8008 mini machine with an operational mass of 850 kg and a bucket with a volume of 0.03 m3. The layout of this excavator is made so that the operator is located on the motor casing of the machine, as on a motorcycle. JCB 8008 is equipped with an engine with a capacity of 12.5 hp and has a maximum depth of digging 1690 mm.
Firm Avant. Releases a small-sized construction machine AVANT 220. A four-wheel drive wheel chassis with this Finnish station is used as a drive. gasoline engine Kohler V20 with a capacity of 20 hp, independent hydraulic drive of each wheel, with inter-axis differential lock. For this mini car, more than 20 different attached guns have already been created. The equipment of Avanta is 620 kg, and the lifting capacity on the arrows is 300kg.
Compact construction machinery brand Bobcat. Available in Ingersoll Rand - one of the leading manufacturers of heavy equipment for road construction and soil seals. The Bobcat 316 mini-excavator is a machine with an operational mass of 820 kg. The excavator is equipped with a 10 hp engine. and a bucket with a volume of 0.04 m3. The maximum depth of the digging is 1550 mm, and the elevation height of the unloading is 2010 mm.
Japanese compact excavator Takeuchi. TV 108 with an equipped weight of 835 kg equipped with a 2-cylinder engine capacity of 9.3 hp (6.8 kW) (Euro-4) and is able to get the ground from the depth of 1.53 m and unload the bucket at a height of 2 m. The bucket volume is 0.018 m3. TV 108 is equipped with a hydraulic system for regulating its own width dimension. Its rubber caterpillars can be spread to a width of 900 mm to increase stability when working, or compressed to 680 mm in order to pass into narrow openings. The operator's workplace is equipped with an awning. And for the dumping of the soil, the Takeuchi TV 108 is equipped with a bulldozer dump.
Buy mini excavator or not
Before you decide on the purchase, it is necessary to make economic calculations and find out whether it is not cheaper to hire shovels from the Central Asian countries instead of using a mini-excavator. However, migration laws are becoming tougher, therefore, I think, in the near future, the demand for compact techniques that replaces the work of a whole brigade will increase.
An important aspect is the versatility of mounted excavator equipment, which allows one machine to perform various types of work, in a small space. However, it is impossible to forget that miniature mechanisms are not limitless.
If you have decisled to make investments in a mini technique, then, of course, it is necessary to take into account the scope of its further use and weather conditions of your region. If the excavator is not operated in the southern part of Russia, you should pay attention to the models with a closed cabin. And if you plan to use an excavator in warm climatic conditions, you can save on the cabin.
Every year, mini excavators are becoming an increasingly more common type of technology. And although in the near future they are unlikely to take a significant share of the construction machine market, but nevertheless mini excavators are no longer exotic on Russian expanses.
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