Komatsu bulldozers: specifications and reviews

Komatsu high-performance and modern bulldozers are used in various industries and national economy. The tractor proved itself as a reliable, easy-to-use and easy-to-operate unit. The machine is equipped with modern power devices, has several complete sets. The technique is designed for operation in different climatic regions.

Features

Bulldozers Komatsu produces the world leader in the field of transport industrial equipment. All technical and auxiliary units combine the simplicity of service, while each of them is patented, implemented with the use of high technologies. The tractor is equipped with a fault detection system, which improves the speed of their elimination several times.

For the driver the place is equipped with various thoughtful elements and is protected from external influence, which makes it possible to work comfortably in different conditions. This bulldozer, created in the Land of the Rising Sun, has an increased resource, thanks to innovative solutions using composite materials. Variations with bundling allow choosing a model that is optimal for certain types of work. The unit can be equipped with a baking powder, hinged nozzles and other additional equipment.

Modifications

Komatsu bulldozers, a range of which includes special equipment of various categories, can handle loads from eight to hundreds of tons. According to the performance indicators, modifications from 80 to 900 horsepower are presented. The most popular on the domestic market are bulldozers Komatsu d65.

They are a multifunctional special equipment of heavy category, used for different types of bulldozer works. Crawler assistants can be equipped with different types of front piles with adjustable angle and tilt, as well as modernized elements that significantly increase the productivity of the machine.

In addition, the following modifications are required:

• D65E;
• D355A;
• D275;
• D375;
• D475.

All of them have their own peculiarities and spheres of application.

Main technical indicators

Komatsu bulldozers, whose main plan technical characteristics are presented below, have the following indicators in the most popular equipment:

• Power of the power plant - 207 horsepower. (1550 W);
• Total weight with hinged aggregates - 19.7 tons;
• The track / track width is 1.88 / 0.51 m;
• Ground clearance - 425 mm;
• Straight blade: width / height (mm) - 3415/1225;
• Equipment of swivel type: width / height (mm) - 3970/1100;
• The hemispherical element (similar indicators) is 3870 and 1235 mm;
• The height of the bucket lift is maximal over the ground level - 1100 mm;
• The maximum depth of dip of the bucket into the soil is 505 mm;
• The disintegration mechanism is a three-stage version with a maximum lift up to 640 mm and a depth of 595 mm.

Bulldozers Komatsu D65E 12 have: length - 6,6, width - 3,1, height - 3,46 meters.

Power plant and powertrain assembly

The tractor is equipped with a diesel four-stroke engine, which has 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. Installation is considered one of the most economical in its class, with the maximum torque reaching 799 Nm at 1,100 rpm. Engine lubrication system - forced type, reduced noise threshold allows to use equipment in urban conditions.

Popular Komatsu bulldozers are equipped with a native TORQFLOW transmission. The unit is a hydraulic single-stage transformer with three elements. The hydraulic transmission of the planetary type is interconnected with the multi-plate clutch unit, it has compulsory lubrication. The CAT operates in three forward and as many reversible positions.

Reducer on board the tractor is a layout of planetary and spur gear, which minimizes shock impacts on the power unit. Operated by a bulldozer with a joystick. Elementary movements in the desired direction make it possible to easily and effectively control a multi-ton system. This is due to the advantage of the introduction of brake and clutch hydraulics in the design.

Cabin arrangement

Operator's workplace is a cabin in which there is a comfortable armchair, air conditioning, ventilation system, joystick for tractor control, other functional and control devices.

Additionally, the work of the bulldozer is enhanced by increased visibility, excellent cushioning, and well thought out protection against dust and noise. The cab can be easily adjusted to the driver's physical characteristics, it can be produced in an enhanced form for working in particularly difficult conditions.

Dump control is carried out by adjusting the speed and weight modes, which makes it possible to accurately perform work with various materials. Such an effect, which is expressed in the smooth compensation of the mechanical effect of the processed products, is obtained thanks to the specially developed CLSS technology used in the manufacture of hydraulic assemblies. A lot of levers, sensors and instruments help to correct the work correctly taking into account their indicators and features.

Advantages of the technology in question

Komatsu bulldozers have a number of objective advantages, which consist in the following positions:

• Excellent power of power plants, which guarantee high productivity of the unit.
• Good economics and operational simplicity.
• 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 replaceable attachments, which expands the functionality and use of the machine.
• High quality of the main units and units, as well as additional equipment, ensuring reliability and long-term service life.
• The low-lying center of gravity of the machine and the structural features of the tracked chassis give the tractor reliable stability during the working process.

Reviews

Most of the reviews on the Komatsu technique are positive. Especially users note the advantages listed above, as well as the comfort of the driver, the variety of trim levels, modern design of the cabin and its ergonomics.

In addition, the full operation and repair of this machine in domestic conditions is available through open service centers, and the unit cost is quite acceptable for this category of equipment, since the production of spare parts and components in Yaroslavl is established, the head office is in Moscow.

Completion

It can be safely asserted 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 a modern tractor is required for working in different sectors, the choice of the unit in question is an almost optimal solution, considering the performance, ergonomics, compliance with world standards, economy, quality of parts and the total cost of this vehicle.