Since 2010, the process of localizing the production of the most popular models of Komatsu earthmoving techniques has begun in Yaroslavl. Hero of Article - Excavator PC400-7, the mass of which is 41.4 tons
Source Photo: ISTK.ru
Specifications PC400-7, Mass
The model in question was launched in production in 2008. Today, absolutely all copies sold in Russia are going to yaroslavl factoryAnd despite the fact that the PC400-8 version already exists, the manufacturer does not plan to stop their release. The fact is that the "eight" is designed for countries with more stringent environmental standards than those that operate in Russia. PC400-7, in turn, is completed with the Komatsu SAA6D125E engine of the Tier 2 standard, which fully corresponds to today's Russian realities. It can be said that Komatsu PC400-7 is an excavator, tested by time: for almost 10 years since the start of sales this car Provert itself as a reliable and easy-to-repair technique.
To date, the production of Komatsu PC400-7 is used frame, swivel platform and work equipment russian production - They are made right in Yaroslavl from the Russian metal 09G2C. Engine, hydraulic components and cabin are shipped from Japan (assembled). In general, the main competitive advantages of the PC400 manufacturer calls reinforced work equipment, the presence of a rock bucket in basic configuration, high torque, hydraulic system with a closed center and reinforced running part.
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Source Photo: ISTK.ru
The volume of the cab is increased by 14%. Vibration at the floor level decreased from 120 to 115 dB. It was possible to achieve this due to the refinement of the Cabin's damper system, in which a long run and an additional spring was applied. In addition, the left and right cabbage panels were strengthened. Unimpressed working zones decreased by 34%: the designers removed the right window rack and changed the form rear rack. The pressure force of the handle (limit value) increased by 8% to 214 kN (21.8 tons), the force cutting force of the bucket is 9% to 275 kN (28 tons). These values \u200b\u200bare achieved at maximum power.
Engine
The 6-cylinder SAA6D125E engine with turbocharging, water-cooled and a turbocharger, water-cooled and a turbocharger, is installed on the PC400-7 excavator direct injection Fuel. Nonal rotational speed - 1,850 rpm. In case of inclusion of an economical mode, fuel consumption in comparison with PC400-6 is reduced by approximately 20%.
Dimensions PC400-7
Volume of bucket
The volume of the bucket of the tracked excavator Komatsu PC400-7 is 1.9-2.1 cubic meters.
Maintenance
Replacement interval oil filter The hydraulic system increased from 500 to 1000 hours, oil replacement in the engine and engine oil filter - from 250 to 500 hours.
Modifications
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Source Photo: ISTK.ru
The most popular among Russian consumers - PC400-7 standard specification with a rock bucket 1.9 cubic meters (it is also possible to install a bucket of 2.1 cubic meters). In addition, versions are available for different operating modes: the temperature specification from -25 to +40 degrees and from -50 to +40 degrees. The main difference of the latter is that all rubber products are made of materials that do not harden and retain their elasticity when low temperatures. Another important difference of this version is liquid preheater Mikuni, which, together with the coolant of the engine heats all podcast space Excavator. In 2016 appeared new modification For career works, the feature of which is a rock bucket of 2.8 cubic meters.
The Komatsu PC400 excavator is the greatest interest in consumers among the construction special equipment of this manufacturer. This is due to the benefits of the machine - canceled technical parameters, maneuverability and productivity. The excavator has the greatest radius of digging in its class, as well as the depth of the cut. When developing equipment, modern solutions were used, and in production - innovative technologies. Automated machine assembly provides high quality finished products. Basic performance properties are high due to the installation of high-quality and durable components.
Features and advantages
Komatsu RS 400 is used when performing the following works:
- embankment device;
- loading and unloading operations with bulk materials;
- reverse backfilling of recesses;
- delections device;
- career development.
Due to the universality and multifunctionality of the excavator, it is widely used in a mining, oil and gas industry, metallurgical industry and other areas of farm. The main advantages of Komatsu PC400 include:
- simplicity of maintenance and care;
- the possibility of working in various conditions;
- reliable and robust design;
- ecology power plant;
- maneuverability;
- ergonomic controls;
- the ability to select the mode of operation of the boom equipment (maximum power or smooth stroke);
- safety and comfort;
- performance;
- efficiency in terms of fuel consumption;
- efficiency;
- multifunctionality;
- universality.
In addition, counterweights are established for the technique, due to which the carrying capacity and stability increased. For the safety of the operator, railing, fencing and steps with anti-slip coating are provided. This eliminates the emergence of unexpected situations while working.
Also as a model of the PC300, the RS 400 excavator has increased intervals of the replacement of fuel and lubricants and liquids, as well as increased reliability of the working bodies. It easily copes with the tasks set when working in an aggressive environment. The advantages of the car should include power and long term trouble-free service, which is due to the installation of reliable and high-quality parts.
Specifications and dimensions
To main technical characteristics Komatsu. PC400 belongs:
Overall characteristics of Komatsu RS 400:
Fuel consumption
Crawler excavator Komatsu PC400 spends from 18 to 28 liters diesel fuel per hour of work on average. At the same time B. filling Capacity 650 liters of diesel, which guarantees long work Without the need to refuel.
Engine
A four-stroke six-cylinder is installed on the RS 400 Komatsu force aggregate Power 347. horse power. Model SAA6D125E-3 volume of 11 l is equipped with liquid and air cooling systems, direct feed combustible mixture and turbocharged supervision. The maximum speed of the excavator is 5.5 km / h. Fuel injection is made using control electronics, which guarantees a reduction in fuel consumption and efficiency. The engine shaft rotation frequency is 1850 revolutions per minute, each cylinder has a diameter of 12.5 cm.
The quality of the power plant exhaust is complied with international standards of class Tier II. Thanks this motor The operator can choose the mode of operation Komatsu RS 400:
- powerful, in which the limit capacity is produced, providing excellent productivity and low intake of diesel;
- economy mode used when simple works. At the same time, the speed of movement remains the same, and the fuel consumption is reduced.
Device
To increase the effectiveness of PC400 are provided:
- increased stability due to the device of counterweight improved design;
- the ability to operate with more weight loads;
- increased soil cut force;
- two modes of boom equipment (smooth and powerful), at the expense of which you can choose the characteristic necessary for a specific type of work.
Chassis
The increased gap between the Komatsu PC 400 turntable platform and the tracked ribbon makes it possible to eliminate the mechanical damage to the bottom of the structure during the climbing rocks.
Hydraulic system
Hydraumind hydraulics is installed on the technique, characterized by a closed center, installing two pumps with variable transmission and system. electronic control. Due to it, the optimization of the power characteristics of the engine is achieved, hydraulic losses are reduced when working and the flow of diesel fuel.
Hydrosystem Komatsu RS 400 has several distinctive features. This is the installation of hydraulic type pumps with pistons with a variable power. Maximum speed The flow is 616 liters per minute of operation, the pressure is 355 kg / sq. cm.
Description
Komatsu PC400-7 Excavator Performance Characteristics
1. High performance and low fuel consumption. Increased performance when operating in active mode, along with low fuel consumption.
2. Low flow Fuel and high engine output power. Powerful engine Komatsu SAA6D125E with turbocharged and consistent air cooled Develops the power of equal to 246 kW 330 hp Low fuel consumption is achieved due to the fuel injection system with electronic control.
3. Great soil cutting force. When the active mode function is turned on, the handle force is increased by 8%, and the force cutting force of the bucket increases by 9% (compared to the Komatsu PC400-6 model).
4. Two boom operation modes. Using the switch, you can select the powerful cutting mode of the soil or smooth boom.
5. Excellent machine stability. Thanks to the new design of the counterweight, the stability and equilibrium of the machine are significantly improved.
6. High load capacity. Thanks to improvement transverse stability Komatsu PC400-7 models increased load capacity.
Simple maintenance of the Komatsu PC400-7 excavator
1. Increased period between oil change in engine, engine oil filter and hydraulic filter.
2. The radiator and the oil cooler are easily removed and installed.
3. Increased fuel tank capacity.
4. Thanks to the new design of the operating equipment bushings, the lubrication interval (optional) was increased.
5. Convenient access to check the engine.
6. High-performance air filter.
Spacious and comfortable excavator cabin Komatsu PC400-7
1. The volume of the new Cabin PC400-7 is increased by 14%, which provides additional comfortable working conditions. A large cabin makes it possible to slide the seat with a headrest back into a completely horizontal position.
2. Sealed cabin with air conditioning installed by additional order. When installing an additional acquired air conditioner and due to availability air filter and increased internal air pressure (6.0 mm of water. Art. 0.2 inches of water. Art.) Dust from the outside does not fall inside the cab.
3. Low noise design. The noise level is significantly reduced not only when engine operation, but also when turning the platform and unloading the hydraulic system.
4. Low level Vibrations thanks to the installation of the cab. The KOMATSU PC400-7 model uses a new enhanced cabin system system, in which a long run and an additional spring applies. The new cabin damper in combination with reinforced left and right panels contributes to a decrease in the level of vibration from the operator's seat.
5. Fencing to protect the operator with the possibility of installing additional upper fencing with bolted fastening.
6. The upper fence of the operator corresponding to the level 2 by ISO 10262 (a fence was previously installed to protect against incident objects).
Proportional pressure control levers create comfortable conditions for operator operation and ensure accurate control of the Komatsu PC400-7 excavator. Due to the double sliding mechanism, the seat and control levers can move together and separately. The operator can arrange the levers so as to provide the convenience of control and comfort.
Characteristics of protective devices of the Komatsu PC400-7 excavator
1. Cabin. Fencing to protect the operator (design to protect against falling objects) with the possibility of installing additional upper fencing with bolted fastening.
2. Good visibility. The right window rack was removed, and the form of the rear window rack is changed to improve visibility. Unimpressed zones decreased by 34%.
3. The partition between the motor and pump compartment prevents the oil spray to the engine when the hydraulic hose breaks.
4. Thermal fences are set around high-temperature engine parts and fan drive.
5. Steps with non-slip coating and large railing. Stages with non-slip coating provide additional safety when working at the Komatsu PC400-7 excavator.
