Komatsu highly efficient and modern bulldozers are used in various fields of industry and the national economy. The tractor has established itself as a reliable, easy to use and easy to operate unit. The machine is equipped with modern power devices, has several trim levels. The equipment is designed for operation in various climatic regions.
Features
Komatsu bulldozers are manufactured by the world leader in the field of transport industrial equipment. All technical and auxiliary units combine ease of maintenance, while each of them is patented, made using high technology. The tractor is equipped with a fault detection system, which increases the speed of their elimination by several times.
For the driver, the seat is equipped with various thoughtful elements and is protected from external influences, which allows you to comfortably perform work in various conditions. The bulldozer under consideration, created in the Land of the Rising Sun, has an increased resource due to the use of innovative solutions using composite materials. Variations with a complete set allow you to choose a model that is optimal for certain types of work. The unit can be equipped with a baking powder, mounted nozzles and other additional equipment.
Modifications
Komatsu bulldozers, whose lineup includes special equipment of various categories, can handle loads from eight to hundreds of tons. In terms of power, modifications from 80 to 900 horsepower are presented. The most popular in the domestic market are Komatsu d65 bulldozers.
They are multifunctional special equipment of a heavy category, used for different types of bulldozer operations. Track assistants can be equipped with various types of front dumps with an adjustable angle of rotation and tilt, as well as modernized elements that significantly increase the productivity of the machine.
In addition, the following modifications are in demand:
- D65E;
- D355A;
- D275;
- D375;
- D475
All of them have their own characteristics and scope.
Key technical indicators
Komatsu bulldozers, the technical characteristics of the main plan of which are presented below, have the following indicators in the most popular configuration:
- The power of the power plant is 207 horsepower. (1550 W);
- Gross weight with mounted units - 19.7 tons;
- Width of gauge / tracks - 1.88 / 0.51 m;
- Ground clearance - 425 mm;
- Direct dump: width / height (mm) - 3415/1225;
- Rotary type equipment: width / height (mm) - 3970/1100;
- Hemispherical element (similar indicators) - 3870 and 1235 mm;
- Bucket lift height to maximum above ground level - 1100 mm;
- The maximum depth of immersion of the bucket in the soil is 505 mm;
- The loosening mechanism is a three-stage version with a maximum lift of up to 640 mm and a depth of 595 mm.
Komatsu D65E 12 bulldozers have: length - 6.6, width - 3.1, height - 3.46 meters.
Power plant and transmission unit
The tractor is equipped with a four-stroke diesel engine with direct fuel injection and water cooling. The speed of the unit per minute is 1950 scrolls on the flywheel, power - 135 kW with a fuel consumption of 180 g per hour. The installation is considered one of the most economical in its class, while the maximum torque reaches 799 Nm at 1,100 rpm. Engine lubrication system - forced type, low noise threshold allows the use of equipment in urban environments.
Popular Komatsu bulldozers feature the native TORQFLOW transmission. The unit is a hydraulic single-stage transformer with three elements. The planetary type hydraulic gearbox is interconnected with a multi-plate clutch unit and has a forced lubrication. The gearbox operates in three forward and equally reversible positions.
The gearbox on board the tractor is the layout of the planetary and spur gears, which minimizes the impact on the power unit. The bulldozer is controlled by a joystick. Elementary movements in the desired direction make it possible to easily and efficiently control a multi-ton machine. This is due to the advantage of introducing hydraulic brakes and clutch into the design.
Cab arrangement
The operator’s workplace is a cabin in which there is a comfortable chair, air conditioning, ventilation system, a joystick to control the tractor, and other functional and control devices.
Additionally, the visibility of the bulldozer facilitates increased visibility, excellent cushioning, as well as thoughtful protection against dust and noise. The cab is easily tuned to the physical characteristics of the driver, can be produced in a reinforced form for work in particularly difficult conditions.
The dumps are controlled by adjusting the speed and weight modes, which makes it possible to accurately perform work with various materials. A similar effect, which is expressed in the smooth compensation of the mechanical impact of the processed products, was obtained thanks to the specially developed CLSS technology used in the manufacture of hydraulic units. A lot of levers, sensors and instruments help to correctly adjust the work taking into account their indicators and features.
Advantages of this technique
Komatsu bulldozers have a number of objective advantages, which are in the following positions:
- Excellent power plants, which guarantee high performance unit.
- Good indicators of profitability and operational unpretentiousness.
- The introduction and use of motors, as well as other important components of their own manufacture, which increases their reliability and suitability for repair.
- It is allowed to use various types of interchangeable attachments, which extends the functionality and scope of use of the machine.
- High quality of the main units and assemblies, as well as additional equipment, ensuring reliability and long-term operation.
- The low center of gravity of the machine and the design features of the tracked chassis give the tractor reliable stability during the working process.
Reviews
Most reviews of the Komatsu technique are positive. Especially users note the advantages listed above, as well as the comfort of the driver, the variety of configurations, the modern design of the cab and its ergonomics.
In addition, the full operation and repair of this machine in domestic conditions is available to organize thanks to open service centers, and the cost of the unit is quite acceptable for equipment of this category, since the production of spare parts and components in Yaroslavl has been established, the head office is in Moscow.
Completion
We can safely say that the Japanese Komatsu bulldozers, the overall dimensions of which depend on the modification and have a fairly wide range, are reliable and functional machines.
If you need a modern tractor to work in various industries, the choice of the unit under consideration is almost the optimal solution, taking into account productivity, ergonomics, compliance with international standards, efficiency, quality of parts and the total cost of this vehicle.