Komatsu PC400 crawler excavator technical specifications and description

The Komatsu PC400 crawler excavator is one of the best construction machines from the Komatsu manufacturer. From the entire line of special equipment, this machine is distinguished by its excellent performance characteristics, including a large digging radius and maximum soil cutting depth. The manufacturer equipped the excavator with innovative solutions and advanced design developments, which significantly increased the reliability of the equipment. The excavator assembly process is carried out using automated equipment, as a result of which the high quality of the entire Komatsu PC400 was ensured.

Under the hood of the Komatsu 400 is a diesel six-cylinder engine brand SAA6D125E-3. It uses a direct fuel injection system into the combustion chambers and a turbocharging system, which allows it to develop a rated power of 255.22 kilowatts or 347 horsepower. The engine turned out to be reliable and resistant to high loads. Its operational resource is designed for a fairly long service life. Technical problems and malfunctions are resolved right on the spot, since the design of the excavator provides full access to those parts and elements that require regular inspection.

In the Russian markets, this excavator holds a leading position in sales, so it surpasses some imported analogues in technical indicators, however, the cost is the same, but sometimes a little lower.

Purpose

The machine is universal and therefore ideal for almost all areas of work. The excavator is in demand in the construction of any facilities, mining industries, metallurgical industries, gas and oil production companies, as well as in many other industries.

The excavator performs such work as filling holes and depressions; development of quarries and wells; loading and unloading various bulk materials; digging trenches, ditches and pits; creating mounds of soil and other materials in certain places; dismantling of any concrete structures; as well as road repair ones, but in this area the machine is used extremely rarely.

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Special equipment provides the opportunity to perform a huge range of work:

• fill in the depressions;
• carry out quarrying;
• Load and unload bulk materials;
• dig trenches, pits and ditches;
• create embankments.

The wide functionality of the Komatsu RS 400 makes it extremely popular in the metallurgical, oil and gas, mining and other industries. The main advantages of the model include:

• maneuverability;
• low fuel consumption;
• minimal toxicity of engine emissions;
• safe and comfortable working conditions for the operator;
• thoughtful design;
• several boom control modes (powerful cutting, smooth cutting);
• ability to work in adverse conditions;
• ergonomic control;
• ease of maintenance.

Again, the excavator has one more important advantage. The improved design of counterweights increased the stability and balance of the equipment, which increased its load capacity.

When creating the Komatsu PC400, the developers paid special attention to reducing the likelihood of emergency situations. For this purpose, steps with a specialized coating, fences and railings have been added to the design of the excavator. The “highlight” of the model was the HydrauMind hydraulic system with a closed center, two pumps with variable flow and electronic control. It ensures optimal use of the power of the power plant, reducing hydraulic losses during operation and reducing fuel consumption.

Like the Komatsu PC300 modification, this excavator is characterized by an increased replacement interval for fuel and lubricants and liquids and increased reliability of working equipment.

Komatsu RS 400 was created for use in aggressive conditions. Productive and powerful special equipment breaks down extremely rarely and has a long service life.

Attachments

The wide purpose of the Komatsu 400 crawler excavator is due to an extensive range of various attachments. The machine is capable of operating with the following additional units:

1. Digging buckets. This type of equipment is basic and there are several models, distinguished by the type of work performed (digging loose soil or rock), width, total capacity, weight and number of teeth on the lower cutting edge. Installation of units is carried out literally in a matter of minutes.
2. Grab buckets. Such units are mostly used to perform loading operations, to create soil embankments and to clear the working area of ​​industrial waste. But in addition to this, they are also intended for excavation work with soils of the first and second density categories. To perform more precise work, there are models equipped with a special rotator that allows you to rotate the equipment 360 degrees.
3. Ripping equipment. It is an indispensable tool in the mining industry, as it is used to loosen hard soil. In addition, it can also be used for dismantling purposes.
4. Grabbing pallet type cargo. The main purpose of such equipment is to load and unload various pallet materials.
5. Hydraulic breaker. The scope of application of this unit is quite wide, namely, it is often used to destroy concrete or reinforced concrete structures, to loosen rocks and hard soil, as well as to remove the asphalt layer of roads. Some equipment models are equipped with a special rotator, which allows for more accurate work.
6. Hydraulic drilling equipment. This type is used for drilling various wells and loosening rocks. It is used both in construction and in various industrial sectors. Installed to the handle using a special adapter.
7. Vibrating loaders. There is a fairly large variety of this equipment, distinguished by size, weight and applied force. Designed for driving piles.
8. Vibrating tamping units. Just like the previous equipment, this one has several models that differ in weight, size, operating speed and applied force. The main purpose of compaction units is to compact loose soils and other similar materials. Used in construction and road repair work.

Komatsu fuel consumption

Home / Reference information / Komatsu Fuel consumption for different KOMATSU models liters/hour

Light duty : intermittent operation with idling, efficiency less than 65%. Excavation work with light, non-rocky soil.

Average operating mode : 65-80% of the excavator's work is digging trenches and loading material. Excavation work with low class rocky soil

Heavy duty : direct excavation and loading of material more than 80% per hour.

Komatsu is a leading global manufacturer of mining and road construction equipment. Excavators, bulldozers and front loaders Komatsu is a name that stands for reliability and high performance in all languages ​​of the world. Komatsu machines will last a long time, even when operated in extreme climatic conditions. For example, komatsu loaders are designed for a temperature range from +40 to -60 °C. This technique works successfully in Alaska, Norway, and here, for example, in the oil and gas regions of Western Siberia. If, nevertheless, certain spare parts of your Komatsu special equipment require replacement due to a breakdown or fail over time, then this problem is not difficult to solve. For example, most consumables and spare parts for Komatsu bulldozers are usually in stock.

( GRAND MACHINES ) specializes in the sale of branded spare parts and their analogues for excavators, bulldozers, loaders and other Komatsu equipment. Thanks to reliable relationships with suppliers, we can always offer a wide range of spare parts for special equipment at competitive prices. Geographically, the company with its warehouse is located in Yekaterinburg, but supplies throughout Russia.

To place an order from the spare parts catalog, contact our company’s specialists by calling (343) 361-06-32 or use the online application on our website.

Delivery of components and spare parts for special equipment is carried out anywhere in Russia.

We guarantee efficiency and responsibility in the delivery of products! Providing our own fleet of equipment for rent and supplying spare parts for road construction equipment is our main specialization!

Modifications

The Komatsu 400 crawler excavator is produced in a single version - the basic one. The manufacturer did not undertake the development of modified versions, since the basic one turned out to be quite successful, namely, it has high power of the power plant and hydraulic system, reliability, comfortable cabin and, which is also important, versatility. The machine is universal, not only with additional equipment, but also with its standard one.

Specifications

Dimensional data:

• Structural length – 11900 millimeters.
• The width of the tracked platform is 3300 millimeters.
• Cabin height is 3900 millimeters.
• Ground clearance – 460 millimeters.
• Handle length -2400 millimeters.
• The width of the caterpillar track is 600 millimeters.
• The track width is 2740 millimeters.

Operational values:

• The structural weight of the excavator is 41,400 kilograms.
• The minimum turning radius of the rear part of the platform is 3600 millimeters.
• The platform rotation speed is 9 revolutions per minute.
• The greatest climb that can be overcome is 35 degrees.
• The maximum digging height is 10915 millimeters.
• The maximum digging depth is 7820 millimeters.
• The maximum unloading height is 7000 millimeters.
• The maximum digging radius is 11,000 millimeters.
• The greatest force on the handle is 25900 kilograms.
• The greatest force on the bucket is 28,200 kilograms.
• Maximum traction force is 329 kilonewtons.
• The specific ground pressure is 77.5 kilopascals.
• The greatest force of penetration of the bucket into the ground is 252 kilonewtons.
• The greatest force for introducing the bucket into the ground (with a standard handle) is 198 kilonewtons.
• Type of working equipment (standard) – earth-moving bucket.
• The volume of the digging bucket is 1900 cubic millimeters.

Engine:

• Engine type – in-line, diesel.
• Engine make: SAA6D125E-3.
• Type of fuel injection system - electronic, direct.
• The turbocharging system is gas turbine.
• Type of cooling system – liquid, with forced circulation.
• Rated output power is 255.22 kilowatts/347 horsepower.

Brakes:

• Service brake type – hydraulic lock.
• Type of parking brakes: mechanical, disc.

Excavator tank capacity:

• Fuel tank – 650 liters.
• Cooling system – 34.2 liters.
• The hydraulic system tank is 248 liters.

Peculiarities

The Komatsu PC400 crawler excavator has quite a lot of different improvements, namely:

1. The space in the cabin has been increased by 14 percent, which has a positive effect on operating comfort. The increased volume allows you to adjust the tilt of the operator's chair with a headrest to almost all necessary positions.
2. High-quality vibration and sound insulation materials are used, thanks to which a fairly low level of extraneous noise during operation, arising from unloading operations, rotation of the platform, and also the engine, was achieved.
3. To enhance operator safety and protection, the cab frame uses high-strength metal. Moreover, additional top guards (installed on the roof) and operator guards can be included in the basic package.
4. The cabin is sealed, equipped with an air conditioning system and an air purification filter. Due to this, it was possible to avoid dust getting into the cabins, which also affects its comfort.
5. The special safety guards located in the upper part of the cab comply with the requirements of the second level according to ISO 10262.
6. The cabin uses improved dampers that can significantly reduce the level of vibration arising from the tracked platform when moving.

One of the key features of the Komatsu 400 is that it can perform various jobs with extraordinary precision. This is due to the multi-position control levers of the working equipment with proportional pressure. In order for the operator to fully customize the cab for himself, the manufacturer installed a double sliding mechanism, the essence of which is to move the operator’s seat and the control levers of the work equipment separately from each other.

In terms of technical characteristics and performance, there are also several interesting and useful advantages, namely:

• Each type of job has its own performance requirements, so the Komatsu 400 hydraulic system was equipped with two special boom operating modes. The first mode involves performing smoother and more accurate movements, when the second is intended for cutting.
• To make the machine more efficient, the manufacturer increased the soil cutting force, which allowed the excavator to cope even with fairly hard rocks and soils.
• The hydraulic system has been modified and, as a result, the maximum lifting capacity has been significantly increased.
• If you are working with heavy weights or simply on uneven surfaces there is a risk, then at some point the machine may lose its stability and tip over. To prevent this from happening, the entire design of the excavator was subject to changes. Thanks to this, stability has increased.

In terms of maintenance, the Komatsu PC400 excavator will not cause any inconvenience or special difficulty, since the following design solutions have been introduced for ease of maintenance:

1. The equipment bushings have a new modified design, which has extended the lubrication interval of mechanisms and parts. Optionally, improved elements can be installed.
2. The use of new filter elements in the design has made it possible to significantly increase the intervals between replacing oil filters, hydraulic system filters and the power unit filter.
3. The turntable has several accesses to the power unit. When the hood is fully opened, the mechanic can reach almost all engine components.
4. The oil cooler and radiator also feature a new, redesigned design that allows for quick removal and installation.
5. A high-performance air filter is installed.

And finally, we should mention such qualities of the machine as:

• Maneuverability.
• Economical.
• Thoughtful design.
• Ergonomics
• Resistance to environmental influences.
• Minimum amount of engine emissions into the atmosphere.

Description and features

The model index indicates the operating weight, namely a weight of 41,400 kilograms. This is typical for all products of this brand. With a fairly large mass, the specific ground pressure of the Komatsu 400 reaches 0.79 kilograms per cubic centimeter.

The technique has gained great popularity due to such key advantages as:

1. Excellent maneuverability on any ground.
2. Low hourly diesel fuel consumption.
3. The power plant has minimal exhaust toxicity.
4. High level of security.
5. Comfortable cabin.
6. Convenient and simple control of both the working parts and the equipment itself.
7. Improved design.
8. There are various modes for operation.
9. The ability of equipment to work properly even in the harshest conditions.
10. Simple and low-cost maintenance.

But in addition to all of the above, this excavator has one more important feature. The design of the counterweights has been improved, which has a positive effect on the stability and balance of the model. Thanks to this, Komatsu 400 is capable of handling very large weights.

The manufacturer placed great emphasis on reducing the likelihood of emergency situations. The design of the excavator received steps covered with a special anti-slip material, additional guards and handrails. Komatsu 400 has a modern hydraulic system called HydrauMind. This system has two hydraulic pumps and electronic control. Its use is due to the optimal use of power unit performance, reduction of hydraulic losses during the working process, as well as reduced diesel fuel consumption.

It is worth noting that this crawler excavator was specially designed to work in rather difficult conditions, both climatic and industrial. This explains the increased service life of the most important elements of the machine and the minimal likelihood of any serious malfunctions.

Compared to previous models, the Komatsu PC400 has an improved cabin, which has the following advantages:

1. The space in the cab has been increased by 14 percent, which has a positive effect on operator comfort. The large interior volume allows the operator to tilt the seat and headrest, allowing the operator to select the most comfortable position.
2. The cabin uses a lot of sound-proofing and vibration-absorbing materials, thanks to which it was possible to significantly reduce the level of extraneous noise and vibrations that arise during the operation of the equipment.
3. A special fence was installed, which contributed to increasing the level of operator safety. An additional top can also be installed optionally, which guarantees complete protection.
4. The cabin has increased sealing and air conditioning with a filtration system for the air entering the cabin. All this avoids the entry of dust and other small particles into the cabin when doing any work. Moreover, this also ensures comfortable conditions regardless of the environment.
5. An improved cab damper was used, thanks to which it was possible to further reduce the level of vibrations that occur during the working process.

Multi-position control levers with proportional pressure are installed. Thanks to this, the operator can do any work with maximum accuracy. There is also a double sliding mechanism for the operator's seat and controls, which allows you to move all this, both simultaneously and separately. This solution is often found in many modern cars, as consumer reviews have proven that it is indeed very convenient and relevant.

The excavator has quite high efficiency and productivity, which is influenced by the following:

1. The presence of two modes for doing certain types of work. One mode is designed for smoother operation, while the other allows you to use the full power of the equipment, thereby performing complex types of work.
2. The soil cutting force has been significantly increased.
3. The lifting capacity of the excavator's hydraulic system has also been increased.
4. Thanks to optimal weight distribution and improved counterweight design, high stability has been achieved.

As for the technical maintenance of equipment, the maintenance personnel will also not have any difficulties in detecting problems and eliminating them. This was influenced by the following:

1. The lubrication interval for parts has been increased by using a new design of equipment bushings.
2. Engine and hydraulic system oil filter elements have an extended service life.
3. There is full access to all necessary elements, both the power plant and the hydraulic system.
4. The radiator and oil cooler have been redesigned, making removal and installation effortless.
5. A high-performance air filter is installed.

On a rotating platform behind the operator's cabin there is a six-cylinder, four-stroke power unit that consumes diesel fuel. This engine was developed by Komatsu and is available under the designation SAA6D125E-3. It is worth noting that the manufacturer installs its own power plant in almost every car. This engine has direct fuel injection into the combustion chambers, liquid cooling and a turbocharging system. The fuel supply system is electronically controlled, which has a positive effect on specific fuel consumption. It is also worth noting that this motor meets Tier II environmental standards. The maximum speed of independent movement is 5.5 kilometers per hour.

Engine

Under the hood of the Komatsu PC400 crawler excavator there is a SAA6D125E-3 power unit. This engine has six cylinders with a diameter of 125 millimeters, which are arranged vertically in a row. The piston stroke is 150 millimeters. The total volume of all cylinders is 10998 cubic milliliters. The engine is complemented by a gas turbine-type turbocharging system, which allows it to produce fairly high performance - the rated output power reaches 255.22 kilowatts or 347 horsepower. The estimated crankshaft rotation speed is 1850 rpm.

The fuel injection system into the combustion chambers of this unit is electronic, direct. The cooling system, as in most other modern special equipment, is liquid with forced circulation of antifreeze.

Price new and used

The cost of a Komatsu PC400 excavator in completely new technical condition starts from six million Russian rubles. The key factor influencing the final cost of the machine is the year of production.

A supported model can cost on average from four million to five million Russian rubles. In this case, operating time, technical condition and year of production play an important role in the cost.

Renting this excavator starts from 10 thousand and reaches 12 thousand Russian rubles for one working hour. It is worth noting that this particular option is in greater demand than the previous ones.

Price

The new Komatsu 400 will cost from 6 million Russian rubles and more. The price directly depends on the year of production of the equipment, configuration and version (basic or modified).

There are also quite a few deals on used cars currently available. The cost of this option ranges from 4.4 million rubles to 5.5 million Russian rubles.

The cost of renting an excavator for one work shift can range from 10 thousand rubles to 15 thousand Russian rubles.