Komatsu D275A-5 is a heavy crawler bulldozer with an operating weight of 50.85 tons and a gross power of 306 kW (417 hp). It is capable of high-performance operation in the most severe climatic conditions. The equipment is universal, designed for a wide range of work in industry, road and general and other sectors of the economy. In a short time, it moves large volumes of cargo, removes soil, clears stumps and shrubs, levels surfaces, profiles roads and earth embankments, fills trenches, etc. The model is positioned as combining a modern and safe design, high reliability and significant technical and operational performance.
Despite the expensive cost, the Komatsu D275A-5 model has been one of the most famous in the manufacturer's lineup and in demand on the market for many years. Komatsu bulldozers (and excavators too) have a long and proud history of working in the Soviet Union and Russia. The company's activities in the USSR began with the supply of construction equipment to our country back in 1969, and this cooperation has never been interrupted.
During this long time, Komatsu equipment, widely used in oil and gas production, in the construction of oil and gas pipelines, in the oil and forestry industries, has established itself as reliable, high-quality and durable. Komatsu notes that the rich experience of using its equipment in the harsh conditions of Siberia and the Far North has played an important role in improving the brand's excavators and bulldozers, bringing them to higher levels of technical development.
The company was founded in 1921 as a small appliance repair shop in the city of Komatsu, on the west coast of Japan. In the 1930s, the company began producing its own agricultural tracked tractors; in the 40s - hydraulic presses and machines for leveling the ground. The first bulldozer, called Komatsu D50, was released in 1947. The following year, the company launched the production of its own diesel engines.
Since 1955, when the first export delivery of motor graders to Argentina took place, Komatsu has been gradually but consistently expanding the geography of its presence in the special equipment market. Nowadays, the Komatsu Group includes 182 companies engaged in the production of special equipment and components for it. The largest Komatsu factories operate in Japan, China and India.
In 2003, the company entered into contracts worth billions in Russia to service projects for the extraction and transportation of oil and gas. In 2008-2010, the Komatsu plant was built in Yaroslavl for the production of medium-class hydraulic excavators and heavy-duty mining trucks.
Komatsu CIS LLC, headquartered in Moscow, founded in February 2008, operates on the territory of nine former Soviet republics: Russia, Ukraine, Belarus, Kazakhstan, Turkmenistan, Uzbekistan, Tajikistan, Kyrgyzstan, Armenia.
Komatsu D275A-5 is equipped with a power unit of the company's own production. Four-stroke six-cylinder diesel engine Komatsu SDA6D140E is equipped with turbocharging, charge air cooling and direct injection of diesel fuel. It is mounted on the tractor frame using thick rubber cushions, which contributes to a significant reduction in vibration and noise.
For its power level, the SDA6D140E engine is very economical. Diesel fuel consumption is 55-60 liters per hour of bulldozer operation. Taking into account the capacity of the fuel tank of 840 liters, a full refueling of the Komatsu D275A-5 bulldozer is enough for 15-18 hours of operation.
The working volume is 15.24 liters.
Power - 306 kW (410 hp), at a speed of 2000 rpm.
Cylinder diameter - 140 mm, piston stroke - 165 mm.
The engine speed controller is all-mode, electronic. The lubrication system is forced, from a gear pump. The filter is full flow. Liquid cooling system. For the best effect, a hydraulically driven cooling fan is provided. The frequency of its operation is automatically adjusted, taking into account the temperatures of the working fluid of the system and the coolant.
Hydromechanical transmission - also of our own production, trademark "Torqflow". It is used on a number of models of Komatsu equipment and consists of: a three-element single-stage single-phase liquid-cooled torque converter and a planetary gearbox with a multi-plate clutch.
The gearbox is equipped with a hydraulic drive. It is lubricated under pressure to ensure optimum heat dissipation. The shift lock lever and the neutral position lock switch are designed to prevent accidental movement of the special vehicle.
Double reduction final drives with spur and planetary gears increase tractive force and reduce mechanical stress on the gear teeth, extend the life of the final drives. The multi-section drive wheels are bolted and can be replaced in the field.
A special power transmission control system records the actions of the operator and the operation parameters of the special vehicle. Based on this received information, the system regulates the power transmitted to the brakes, clutches and gearbox. When the weight of the load increases and the speed decreases, it automatically selects a lower gear. This makes the work process smoother and generally contributes to extending the life of the machine. By the way, this function can be deactivated by simply pressing the cancel button.
The Komatsu D275A-5 bulldozer is also equipped with an automatic shift pattern switch. The special vehicle has two schemes: for light and heavy loads). The switch simplifies the performance of the same type of actions that require a return to the initial position.
The bulldozer has an exceptionally strong base frame and crawler carriage with kingpin and balance bar, which increases the overall reliability of the entire structure. For this special equipment, a swing type suspension is used. Its key feature is the presence of K-shaped carriages. This provides the following important benefits:
- clear control of the alignment of the track rollers and the caterpillar belt, which ensures an increase in the service life of the entire undercarriage;
- reduction of shock loads on the elements of the chassis;
- carriages swing on 2 axes. The vertical offset of the track is increased, which helps to reduce shock loads on the elements of the undercarriage and increase the durability of components;
- Operator comfort is improved by mitigating shock and vibration loads when traveling over difficult terrain.
The lubricated track rollers are resiliently mounted to the track unit by a series of uniquely designed cruciform bottom brackets whose oscillatory movements are damped by rubber pads.
The low position of the drive, which is traditional for the company's special equipment, and a long caterpillar belt with a large footprint, maintain consistently good stability and cross-country ability of the bulldozer. Shoe slippage is kept to a minimum and force on the ripper and blade is stable.
39 shoes are installed on each side of the bulldozer, with a base width of 610 mm. Rollers on each side of 7 pieces. Single grouser height is 88mm. The idler wheel will not wobble under loads, which ensures the balance of the machine.
Tracks have lubricated joints sealed with dust seals. They prevent foreign abrasive materials from getting into the gaps between the pin and the bushing, extending the life of the active tracks. Tensioning and adjusting tracks is easy with a grease gun.
The bearing area is 42,456 cm2. Specific pressure on the ground (bulldozer blade) - 118 kPa (1.20 kgf / cm2).
Hydraulic system
The capacity of the hydraulic system (dump) is 130 liters, (ripper) - 38 liters; maximum flow - 230 liters per minute. Hydraulic cylinders (2 pcs.) - piston, double-acting. The closed center system with load tracking is focused on providing accurate and fast control and efficient parallel operation.
All control spool valves are mounted externally next to the hydraulic tank. The plunger hydraulic pump is capable of delivering up to two hundred and thirty liters per minute, at a nominal engine speed of 2000 rpm.
The capacity of dozer blades Komatsu D275A-5 is 13.7 m3 (hemispherical), or 16.6 m3 (spherical). This guarantees consistently high performance of the special machine. The front plate and side cheeks of dozer blades are made of high-strength steels. By separate order, a double skew blade is supplied.
The maximum depth of the blade is 640 mm;
maximum lift - 1450 mm. 
The single-tooth ripper with variable ripping angle is mounted at a considerable distance from the axis of the drive wheel, and this simplifies the application and improves the efficiency of the ripper, while maintaining a powerful ripping force. The ripping angle of the single shank single shank ripper is adjustable. The lever mechanism is parallelogram. It is an ideal tool for loosening hard rocks and soils.
The multi-shank ripper has three shank and parallelogram hydraulic linkage.
Ripper lifting height - 955 mm;
maximum loosening depth - 900 mm.
Keeping in mind that creating a comfortable working environment for the operator ultimately increases productivity and positively affects safety, Komatsu equips the D275A-5 bulldozers with a low-noise cab design, or pressurized cab (this is already an additional option). In any variant, the cabin of the special vehicle has damping elements and large windows made of tinted glass, giving excellent visibility in all sectors. The damper springs isolate the cab from the supporting frame of the special vehicle, providing decent work comfort and smooth running of the tractor.
The D275A-5 bulldozer uses a new resilient seat. It provides excellent support for the back and arms, has the ability to move longitudinally. To improve visibility in the rear sector, when reversing, the operator has the ability to turn the chair to the right at an angle of up to 15 °. The shift and steering controls move with the seat for maximum operator comfort. The traffic control console can also be moved forward and backward and adjusted in height. The armrest height is separately adjustable so that the operator can operate the machine without changing the most comfortable position.
Komatsu has been creating and improving the Human-Machine Interface, an ergonomically sound control system, for many years now. The joystick of the special vehicle's electronic motion control system helps the operator to precisely control its maneuvers, while being in a fairly comfortable position and without making significant efforts.
- The mass of the bulldozer (fully refueled) is 37,680 kg.
- The mass of the bulldozer (with a hemispherical blade and a single-tooth ripper) is 50,850 kg.
- length - 9290 mm;
- width - 4300 mm;
- height - 3985 mm;
- caterpillar base - 3480 mm;
- minimum turning radius - 3900 mm;
- ground clearance - 507 mm;
- front track - 2260 mm;
- rear track - 2260 mm;
- track width - 610, 710, 760 mm;
- The volume of the fuel tank is 840 liters.
- The volume of the engine cooling system is 130 liters.
- The volume of the engine lubrication system is 52 liters.
- Hydromechanical transmission, main gear and side clutches - 90 liters.
- Final drive housing (each side) - 40 liters.
The Komatsu bulldozer is a used vehicle for various jobs on industrial sites and in agriculture.
Description and characteristics of the model range
The lineup includes:
- D-65;
- D-85;
- D-155;
- D-275;
- D-355;
- D-375;
- D-455;
- D-475;
- D-575.
Komatsu bulldozers: specifications depend on the selected modification.
D65
The Komatsu D65 bulldozer is designed for work on construction sites and in quarries. It is used for leveling and moving various loads, for earthmoving, clearing areas and filling trenches.
There are several modifications: Komatsu D65EX-16 and Komatsu D65E-12.
Technical indicators and data of the Komatsu D-65 bulldozer:
| Full mass | 15620 kg |
| 13.4 km/h | |
| 56 kPa | |
| The largest volume of the blade | 5.6 m3 |
| 406 l | |
| dimensions | Length - 6600 mm Width - 3100 mm Height - 3460 mm |
| Engine displacement | 8.3 l |
| Power unit power | 139 kW |
| Piston stroke | 114 mm |
| 1950 rpm | |
| Rated torque | 520 Nm |
| 8500 kg | |
| Pressure on the rear cart | 7000 kg |
| 135 mm | |
| Number of cylinders | 8 |
| Number of cycles | 4 |
| Operating temperature | -30°…+35°С |
| Track | On the front wheels - 1850 mm On the rear wheels - 1700 mm |
| Outside turning radius | 5800 mm |
D85
This bulldozer model is used to move a large volume of various goods over short distances. Also, the technique can be operated for the construction of dams and dams, for the formation of embankments.
Characteristics and indicators of Komatsu D85:
| Full mass | 23200 kg |
| Number of cylinders | 6 |
| 11.04 l | |
| Motor power | 225 horsepower |
| 2000 rpm | |
| Cylinder diameter | 125 mm |
| piston stroke | 150 mm |
| 14.3 km/h | |
| Ground clearance | 415 mm |
| Wheelbase | 2840 mm |
| Dimensions | 5500*3725*3365mm |
| Number of batteries | 2 |
| Battery capacity | 170 Ah |
| 480 l | |
| Cooling volume | 79 l |
| Hydraulic volume | 90 l |
| Track | On the front wheels - 2000 mm On the rear wheels - 2000 mm |
| Max blade lift | 1210 mm |
| 540 mm | |
| Track dimensions | 560*610*660mm |
D155
The Komatsu D155A bulldozer is a vehicle designed to perform work in a quarry and on industrial sites. The Komatsu 155 bulldozer is controlled from the driver's cab using special levers. The vehicle is equipped with a SA6D140E-2 diesel engine and a five-speed gearbox with reverse.
Description and technical characteristics of the model:
| Total weight | 38700 kg |
| Number of cylindrical parts | 6 |
| Engine power | 302 horsepower |
| crankshaft speed | 1900 rpm |
| Cylinder diameter | 140 mm |
| Piston stroke | 165 mm |
| Maximum transport speed | 13.9 km/h |
| Clearance | 485 mm |
| Wheelbase | 3210 mm |
| Dimensions | Length - 8155 mm Width - 3955 mm Height - 3500 mm |
| Number of batteries | 2 |
| Battery capacity | 170 Ah |
| Fuel tank | 500 l |
| Cooling system volume | 99 l |
| Track | 2100 mm |
D275
Komatsu D275 is used for layer-by-layer excavation and its movement. A four-stroke diesel engine manufactured in accordance with the Euro-2 international environmental standard is installed here. The model of the power unit is SDA6D140E. The vehicle is also equipped with a TORQFLOW transmission with five gears and reverse.
Technical indicators and model data:
D355
Bulldozer Komatsu 355 belongs to the medium traction category. This modification has a simple design and a reliable, powerful engine. Among the advantages of Komatsu D355A are:
- the speed of backfilling trenches;
- layer-by-layer removal of soil;
- the presence of the function of leveling the soil;
- embankment profiling;
- construction of dams and dams.
Technical characteristics and transport parameters:
D375
The Komatsu D-375 wheel bulldozer is equipped with a SA6D170E diesel power unit and a TORQFLOW gearbox.
The equipment is designed for loosening the soil, leveling the surface, backfilling trenches and removing the old road surface.
Also, this transport can be used for mining and the construction of dams.
Characteristics and indicators:
D455, D475 and D575
The Komatsu 455 bulldozer is a crawler tractor with a VTA1710-C800 diesel four-stroke engine. This model is suitable for work on construction and industrial sites. The tractor motor is manufactured in accordance with the Euro-3 international environmental standard.
Technical data and characteristics:
| Full mass | 71500 kg |
| Maximum transport speed | 14.4 km/h |
| Specific pressure exerted on the ground | 96.1 kPa |
| The largest volume of the blade | 6 m3 |
| Fuel tank capacity | 1280 l |
| dimensions | Length - 11130 mm Width - 4800 mm Height - 2135 mm |
| Engine displacement | 28 l |
| Power unit power | 540 horsepower |
| Piston stroke | 145 mm |
| Maximum crankshaft speed | 2000 rpm |
| Rated torque | 520 Nm |
| ground clearance distance | 540 mm |
| Diameter of cylindrical elements | 140 mm |
| Number of cylinders | 12 |
| Number of cycles | 4 |
| Track | On the front wheels - 2600 mm On the rear wheels - 2600 mm |
The D475 caterpillar tractor is equipped with a hydraulic power steering, diesel power unit SAA12V140E-3, which is made in accordance with the Euro-4 environmental standard.
Parameters and indicators:
| Full mass | 108390 kg |
| Number of cylinders | 12 |
| The working volume of the power unit | 30.48 l |
| Motor power | 890 horsepower |
| The highest speed of the crankshaft | 2000 rpm |
| Cylinder diameter | 140 mm |
| piston stroke | 165 mm |
| Maximum movement speed | 14 km/h |
| Ground clearance | 655 mm |
| Wheelbase | 4524 mm |
| Dimensions | 11565*5265*1196mm |
| Fuel tank | 1670 l |
| Cooling volume | 210 l |
| Hydraulic volume | 240 l |
| Track | On the front wheels - 2770 mm On the rear wheels - 2770 mm |
| Max blade lift | 1620 mm |
| Maximum deepening of the blade | 1010 mm |
| Track dimensions | 710*810*910mm |
Modification D575 is the largest bulldozer.
Technical data:
How much does a Komatsu bulldozer cost, and what analogues are on the market
The average cost of various modifications:
- Komatsu D65EX-16, 12 - 8,100,000 rubles;
- new Komatsu 85 - 5,500,000 rubles.
Analogues: CAT, Shantui and TZ-B10.
Komatsu D275A-5 is a heavy crawler bulldozer with an operating weight of 50.85 tons and a gross power of 306 kW (417 hp). It is capable of high-performance operation in the most severe climatic conditions. The equipment is universal, designed for a wide range of work in industry, road and general and other sectors of the economy. In a short time, it moves large volumes of cargo, removes soil, clears stumps and shrubs, levels surfaces, profiles roads and earth embankments, fills trenches, etc. The model is positioned as combining a modern and safe design, high reliability and significant technical and operational performance.
Despite the expensive cost, the Komatsu D275A-5 model has been one of the most famous in the manufacturer's lineup and in demand on the market for many years. Komatsu bulldozers (and excavators too) have a long and proud history of working in the Soviet Union and Russia. The company's activities in the USSR began with the supply of construction equipment to our country back in 1969, and this cooperation has never been interrupted.
During this long time, Komatsu equipment, widely used in oil and gas production, in the construction of oil and gas pipelines, in the oil and forestry industries, has established itself as reliable, high-quality and durable. Komatsu notes that the rich experience of using its equipment in the harsh conditions of Siberia and the Far North has played an important role in improving the brand's excavators and bulldozers, bringing them to higher levels of technical development.
The company was founded in 1921 as a small appliance repair shop in the city of Komatsu, on the west coast of Japan. In the 1930s, the company began producing its own agricultural tracked tractors; in the 40s - hydraulic presses and machines for leveling the ground. The first bulldozer, called Komatsu D50, was released in 1947. The following year, the company launched the production of its own diesel engines.
Since 1955, when the first export delivery of motor graders to Argentina took place, Komatsu has been gradually but consistently expanding the geography of its presence in the special equipment market. Nowadays, the Komatsu Group includes 182 companies engaged in the production of special equipment and components for it. The largest Komatsu factories operate in Japan, China and India.
In 2003, the company entered into contracts worth billions in Russia to service projects for the extraction and transportation of oil and gas. In 2008-2010, the Komatsu plant was built in Yaroslavl for the production of medium-class hydraulic excavators and heavy-duty mining trucks.
Komatsu CIS LLC, headquartered in Moscow, founded in February 2008, operates on the territory of nine former Soviet republics: Russia, Ukraine, Belarus, Kazakhstan, Turkmenistan, Uzbekistan, Tajikistan, Kyrgyzstan, Armenia.
Komatsu D275A-5 is equipped with a power unit of the company's own production. Four-stroke six-cylinder diesel engine Komatsu SDA6D140E is equipped with turbocharging, charge air cooling and direct injection of diesel fuel. It is mounted on the tractor frame using thick rubber cushions, which contributes to a significant reduction in vibration and noise.
For its power level, the SDA6D140E engine is very economical. Diesel fuel consumption is 55-60 liters per hour of bulldozer operation. Taking into account the capacity of the fuel tank of 840 liters, a full refueling of the Komatsu D275A-5 bulldozer is enough for 15-18 hours of operation.
The working volume is 15.24 liters.
Power - 306 kW (410 hp), at a speed of 2000 rpm.
Cylinder diameter - 140 mm, piston stroke - 165 mm.
The engine speed controller is all-mode, electronic. The lubrication system is forced, from a gear pump. The filter is full flow. Liquid cooling system. For the best effect, a hydraulically driven cooling fan is provided. The frequency of its operation is automatically adjusted, taking into account the temperatures of the working fluid of the system and the coolant.
Hydromechanical transmission - also of our own production, trademark "Torqflow". It is used on a number of models of Komatsu equipment and consists of: a three-element single-stage single-phase liquid-cooled torque converter and a planetary gearbox with a multi-plate clutch.
The gearbox is equipped with a hydraulic drive. It is lubricated under pressure to ensure optimum heat dissipation. The shift lock lever and the neutral position lock switch are designed to prevent accidental movement of the special vehicle.
Double reduction final drives with spur and planetary gears increase tractive force and reduce mechanical stress on the gear teeth, extend the life of the final drives. The multi-section drive wheels are bolted and can be replaced in the field.
A special power transmission control system records the actions of the operator and the operation parameters of the special vehicle. Based on this received information, the system regulates the power transmitted to the brakes, clutches and gearbox. When the weight of the load increases and the speed decreases, it automatically selects a lower gear. This makes the work process smoother and generally contributes to extending the life of the machine. By the way, this function can be deactivated by simply pressing the cancel button.
The Komatsu D275A-5 bulldozer is also equipped with an automatic shift pattern switch. The special vehicle has two schemes: for light and heavy loads). The switch simplifies the performance of the same type of actions that require a return to the initial position.
The bulldozer has an exceptionally strong base frame and crawler carriage with kingpin and balance bar, which increases the overall reliability of the entire structure. For this special equipment, a swing type suspension is used. Its key feature is the presence of K-shaped carriages. This provides the following important benefits:
- clear control of the alignment of the track rollers and the caterpillar belt, which ensures an increase in the service life of the entire undercarriage;
- reduction of shock loads on the elements of the chassis;
- carriages swing on 2 axes. The vertical offset of the track is increased, which helps to reduce shock loads on the elements of the undercarriage and increase the durability of components;
- Operator comfort is improved by mitigating shock and vibration loads when traveling over difficult terrain.
The lubricated track rollers are resiliently mounted to the track unit by a series of uniquely designed cruciform bottom brackets whose oscillatory movements are damped by rubber pads.
The low position of the drive, which is traditional for the company's special equipment, and a long caterpillar belt with a large footprint, maintain consistently good stability and cross-country ability of the bulldozer. Shoe slippage is kept to a minimum and force on the ripper and blade is stable.
39 shoes are installed on each side of the bulldozer, with a base width of 610 mm. Rollers on each side of 7 pieces. Single grouser height is 88mm. The idler wheel will not wobble under loads, which ensures the balance of the machine.
Tracks have lubricated joints sealed with dust seals. They prevent foreign abrasive materials from getting into the gaps between the pin and the bushing, extending the life of the active tracks. Tensioning and adjusting tracks is easy with a grease gun.
The bearing area is 42,456 cm2. Specific pressure on the ground (bulldozer blade) - 118 kPa (1.20 kgf / cm2).
Hydraulic system
The capacity of the hydraulic system (dump) is 130 liters, (ripper) - 38 liters; maximum flow - 230 liters per minute. Hydraulic cylinders (2 pcs.) - piston, double-acting. The closed center system with load tracking is focused on providing accurate and fast control and efficient parallel operation.
All control spool valves are mounted externally next to the hydraulic tank. The plunger hydraulic pump is capable of delivering up to two hundred and thirty liters per minute, at a nominal engine speed of 2000 rpm.
The capacity of dozer blades Komatsu D275A-5 is 13.7 m3 (hemispherical), or 16.6 m3 (spherical). This guarantees consistently high performance of the special machine. The front plate and side cheeks of dozer blades are made of high-strength steels. By separate order, a double skew blade is supplied.
The maximum depth of the blade is 640 mm;
maximum lift - 1450 mm.
The single-tooth ripper with variable ripping angle is mounted at a considerable distance from the axis of the drive wheel, and this simplifies the application and improves the efficiency of the ripper, while maintaining a powerful ripping force. The ripping angle of the single shank single shank ripper is adjustable. The lever mechanism is parallelogram. It is an ideal tool for loosening hard rocks and soils.
The multi-shank ripper has three shank and parallelogram hydraulic linkage.
Ripper lifting height - 955 mm;
maximum loosening depth - 900 mm.
Keeping in mind that creating a comfortable working environment for the operator ultimately increases productivity and positively affects safety, Komatsu equips the D275A-5 bulldozers with a low-noise cab design, or pressurized cab (this is already an additional option). In any variant, the cabin of the special vehicle has damping elements and large windows made of tinted glass, giving excellent visibility in all sectors. The damper springs isolate the cab from the supporting frame of the special vehicle, providing decent work comfort and smooth running of the tractor.
The D275A-5 bulldozer uses a new resilient seat. It provides excellent support for the back and arms, has the ability to move longitudinally. To improve visibility in the rear sector, when reversing, the operator has the ability to turn the chair to the right at an angle of up to 15 °. The shift and steering controls move with the seat for maximum operator comfort. The traffic control console can also be moved forward and backward and adjusted in height. The armrest height is separately adjustable so that the operator can operate the machine without changing the most comfortable position.
Komatsu has been creating and improving the Human-Machine Interface, an ergonomically sound control system, for many years now. The joystick of the special vehicle's electronic motion control system helps the operator to precisely control its maneuvers, while being in a fairly comfortable position and without making significant efforts.
- The mass of the bulldozer (fully refueled) is 37,680 kg.
- The mass of the bulldozer (with a hemispherical blade and a single-tooth ripper) is 50,850 kg.
- length - 9290 mm;
- width - 4300 mm;
- height - 3985 mm;
- caterpillar base - 3480 mm;
- minimum turning radius - 3900 mm;
- ground clearance - 507 mm;
- front track - 2260 mm;
- rear track - 2260 mm;
- track width - 610, 710, 760 mm;
- The volume of the fuel tank is 840 liters.
- The volume of the engine cooling system is 130 liters.
- The volume of the engine lubrication system is 52 liters.
- Hydromechanical transmission, main gear and side clutches - 90 liters.
- Final drive housing (each side) - 40 liters.
For purchase of this equipment (Komatsu D275A-5 crawler bulldozer), terms of credit and leasing, service and warranty service, please contact the dealers of the plant or official representative offices. Delivery can be carried out both directly from the manufacturer, and from sites in Moscow and other regions of the Russian Federation.
Specifications Komatsu D275A-5
| Performance characteristics | ||
| Weight * , kg | 45370 | |
| Dimensions | ||
| Overall length, mm | 6930 | |
| Overall width, mm | 4300 | |
| Overall height, mm | 3965 | |
| Ground pressure, kg / cm 2 | 1,06 | |
| bulldozer equipment | ||
| blade type | semi-U blade with adjustable tilt on one side | |
| Weight (including hydroblock), kg | 7507 | |
| Length, mm | 4300 | |
| Height, mm | 1960 | |
| Maximum blade lifting height, mm | 1450 | |
| The maximum value of the deepening of the blade into the ground, mm | 640 | |
| Maximum adjustment range of skew angles, mm | 1000 | |
| Blade capacity, m 3 | LH | 16,5 |
| SAE | 13,7 | |
| Manufacturer | ||
| Manufacturer | Komatsu | |
* - Includes dozer equipment weight and tractor weight without ROPS and cab.
General characteristics Komatsu D275A-5
Developed by the company Komatsu design for maximum performance, reliability and versatility. The hydraulic system, power transmission, frame and other large components are also designed Komatsu
Built on the basis of technology and experience gained Komatsu since its inception in 1921, a new powerful machine GALEO is a kind of gift to the company's customers in various parts of the world, embodying the original design, technical innovation and exceptionally valuable qualities.
Cars GALEO will be used to complete the fleet of modern construction and mining machines of the company Komatsu. The creation of machines in this fleet, which are designed for high productivity, safe operation, and also take into account issues related to environmental protection, reflects the company's desire Komatsu to create a better world.
Practical steps to protect land resources and the environment
Designed by Komatsu, provides maximum performance, reliability and application versatility. The hydraulic system, power transmission, frame and other large components are also designed Komatsu. You're buying a machine that's designed to work together to deliver greater productivity, reliability and versatility.
Using the cooling fan engine with hydraulic drive and automatic control reduces fuel consumption and noise level during machine operation.
Exceptionally low machine profile provides excellent stability and a low center of gravity.
Preventive Maintenance
- Grouped Service Nodes
- Damage-proof hydraulic lines
- Modular power train design
- Conveniently located test points for checking oil pressure
Simple carrier frame and track carrier of the supporting structure with kingpin increase the reliability of the machine.
Significant dumping capacity: 13.7 m 3(17.9 cu yd) hemispherical and 16.6 m 3(21.7 cu yd) spherical.
The height and width of the track link has been increased for increased durability.
New cab:
- Has a spacious interior
- Provides comfort while the machine is moving thanks to the use of a new damping element and a chassis equipped with K-shaped carriages
- Provides excellent visibility
- Can be equipped (on request) with a high-performance air conditioning system
- Equipped with PCCS lever
- Can be equipped (on request) with a system for creating excess pressure inside the cabin
- Equipped with an adjustable armrest
- Equipped with a control unit built into the operator's seat
Turbocharged and cooled engine charge air develops a high power component 306 kW(410 hp).
Modulating valve with electronic regulation provides smooth operation of the onboard clutches/brakes, making it easier for the machine to turn.
Low drive undercarriage with long tracks and seven road wheels (on each side) provides excellent stability and excellent climbing capabilities.
Chassis equipped with K-shaped carriages, improves traction, extends component life and increases operator comfort.
Rippers (installed on request)
- Single tine with adjustable loosening angle
- Multirack
The company's unique suspension system Komatsu provides excellent performance.
PCCS (PCCS Control System)
Firm Komatsu develops an ergonomically sound PCCS control system that provides a work environment in complete control of the operator.
Human-machine interface
Joystick of the electronic control system of the movement of the machine
The joystick of the electronic motion control system of the machine allows the operator to precisely control the maneuvers of the machine, from a comfortable position and with little effort. Gear shifting is done with a simple push of a button.
Left joystick
Fully adjustable resilient seat and motion control console
To improve visibility in the rear sector when reversing, the operator can turn the chair to the right by up to 15 °. Gearbox and steer controls move with the seat for maximum operator comfort. The traffic control console can also move forward and backward and be height adjustable. The armrest height is separately adjustable, allowing the operator to operate the machine from a comfortable position.
Forward facing operator position
Operator position with 15° chair rotation
Fuel handle
The engine speed is controlled by an electrical signal, which facilitates control and eliminates the need for maintenance of links and fuel system connections.
Proportional Blade Control Joystick
Blade control uses a proportional pressure control valve and a blade control joystick similar to the drive control joystick. The use of a proportional pressure control system in combination with a highly reliable hydraulic system of the company Komatsu Provides precise blade control. (Bi-plane skew angles and blade tilt are set by lightly pressing the push-button switch. This control box is used only when dual-skew blade is installed.)
Height adjustable armrest with blade control console
The armrest with the blade control console is adjustable in height in three ranges, which provides the operator with a reliable elbow support.
Blade and ripper control joystick
Adjustable ripper control lever position
The position of the ripper control lever is adjustable, which allows the operator to choose the most comfortable posture for any work with the ripper.
Scheme of electronic control system Komatsu D275A-5
Komatsu D275A-5 Electronic Powertrain Control System
Smooth operation
On a bulldozer D275A-5 a new electronic power transmission control system is used. The controller registers the operator's control action (the amount of movement of the lever or the duration of pressing the pushbutton), as well as the signals coming from each sensor and characterizing the state of the system controlled by it, and accurately calculates the actuating impulse that controls the gearbox, onboard clutches and brakes, ensuring the operation of the machine in optimal mode. Thanks to these new features of the control system, operation is greatly simplified. new bulldozer D275A-5 and dramatically increased its productivity.
Gearbox control by electronically controlled modulating valve
The controller automatically matches each clutch engagement to driving conditions such as gear engaged, engine speed and gear shift pattern. This provides smooth, shock-free engagement of the clutch, increases reliability and increases the service life of the components, and also creates a more comfortable working environment for the operator.
Clutch/brake control with electronically controlled modulating valve
Sensors monitor machine systems and electronically control clutches and brakes based on job parameters such as material being bulldozed, steepness of slope, or load, ensuring smooth and easy work by reducing adjustments direction by moving the steer lever in the opposite direction of the machine's deflection when driving downhill, etc.
Clutch/Brake Efficiency with Electronic Modulating Valve
When bulldozing and turning, an electronically controlled modulating valve automatically adjusts the amount of clutch and brake disc opening according to the load, allowing the machine to bulldoze and turn smoothly.
When bulldozing downhill, an electronically controlled modulating valve automatically controls the side clutches based on machine tilt or load, reducing directional corrections (by moving the swing arm in the opposite direction of machine deflection) and providing smooth bulldozing.
Programmed shift pattern switch
A programmed shift pattern switch is included as standard, allowing the operator to select one of three programmed patterns: F1 - R2 (1st Forward - 2nd Reverse), F2 - R2 (2nd Forward - 2nd) i reverse gear) or manual shift mode. When the programmed pattern F1 - R2 or F2 - R2 is selected, the drive control lever moves from forward to reverse and the machine automatically moves forward/reverse in first/second or second/second gear respectively. This feature reduces shift time for repetitive homing operations.
Auto downshift function
The controller monitors engine speed, gear engaged and road speed. When a load is applied and the vehicle speed decreases, the controller will automatically downshift, optimizing machine speed and improving fuel efficiency. This feature, which eliminates the need for manual shifting, improves operator comfort and improves productivity. (This function can be deactivated by pressing the cancel button.)
Characteristics affecting performance
Komatsu D275 engine
Engine SDA6D140E Komatsu develops a power of 306 kW (410 hp) at an engine speed of 2000 min -1 . This economical engine, combined with the large mass of the machine itself, makes bulldozer D275A-5 high-end crawler-mounted tool for loosening hard rock and dozing. This engine is designed to achieve lower emission levels than required by the environmental standard. The engine is equipped with direct fuel injection, turbocharging and charge air cooling, which maximizes fuel efficiency.
The engine is mounted on the main frame with rubber pads, which reduces noise and vibration.
Hydraulically driven engine cooling fan
The fan speed is automatically adjusted according to the temperature of the coolant and hydraulic fluid, which ensures low fuel consumption and high performance with low noise levels.
Chassis Komatsu D275A
K-carriage system
The new undercarriage, equipped with K-bogies, retains the advantages of the previous design, adding new ones to them.
Characteristics of the chassis of the previous design:
- Caterpillar tracks have a sufficient length of the bearing surface. Shoe slippage is kept to a minimum, resulting in reliable traction on the ground.
- The idler wheel does not oscillate under load, which keeps the machine balanced. Blade and ripper forces remain stable for increased productivity.
New features of the K-carriage undercarriage:
- The K-carriages oscillate on two axles, and the vertical offset of the track has increased significantly. Shock loads on all undercarriage components have been reduced and the life of these components has been increased due to the constant contact of the track rollers with the track.
- The durability of the undercarriage has been increased due to improved control of the alignment of the track with the road wheels.
- Increased operator comfort while driving by reducing vibration and mitigating shock when moving over uneven terrain.
High capacity plow
The dozer blade capacity of 13.7 m3 or 17.9 cu.yd. (hemispherical) and 16.6 m3 or 21.7 cu.yd. The front plate and side cheeks of the blade are made of high-strength steel to increase the strength of the structure.
Double skew blade (optional)
Using a dual tilt blade increases productivity with less operator effort.
- The optimal blade cutting angle for all types of materials and slopes of any steepness can be selected on the go, which increases the loading of the blade and the productivity of the machine.
- Operations such as digging, bulldozing (moving the load) and dumping (levelling) are easy and smooth, reducing operator fatigue.
- The tilt angle of the blade and the speed of its installation are twice the same parameters of the blade with a single tilt.
Rippers
- The single tine ripper with variable ripping angle is mounted well away from the drive wheel axle, making the ripper easier to use and more efficient while maintaining powerful ripping power.
- The variable angle single shank ripper is a single shank parallelogram linkage ripper, ideal for ripping tough rock. The loosening angle can be changed and the loosening depth can be adjusted in three ranges using a hydraulic pin.
- The multi-shank ripper is a three-shank ripper with parallelogram hydraulic linkage.
Operator station Komatsu D275A-5
Comfortable working conditions for the operator
Creating comfortable conditions for the operator's work is a guarantee of safety and high productivity of the operator. Bulldozer D275A-5 equipped with a low-noise design cab, which creates a comfortable working environment for the operator, allowing him to focus on the job.
Pressurized cabin of a new design(installed on request)
- The newly designed cab and large tinted glass windows provide excellent visibility to the front, sides and rear.
- The use of air filters and the creation of excess pressure inside the cab prevents dust from entering the cab.
New cushioned cab and K-carriage undercarriage improve operator comfort while the machine is in motion
In cab suspension bulldozer D275A-5 damping elements of a new design are used, which effectively absorb shock loads and vibration due to the significant length of their stroke. Damping cab suspension units and a new undercarriage equipped with K-carriages dampen shock and vibration when the machine travels over uneven terrain, which is not possible with a conventional cab suspension system. A soft damper spring isolates the cab from the machine base frame, absorbing vibration and providing a smooth ride and operator comfort.
Cab suspension damper
New reclining seat
On a bulldozer D275A-5 a new design of the chair on an elastic suspension is used. Guides for the longitudinal movement of the chair and a spring of a modified design have increased strength and rigidity, which reduces the free play of the components of the chair. The new seat provides excellent support for the back and arms, creating a comfortable environment for the operator while the machine is in motion. The possibility of longitudinal movement of the chair allows you to adjust its position depending on the height of the operator.
Serviceability of the Komatsu D275A-5 Bulldozer
Performing preventive maintenance is the only sure way to ensure the longevity of your equipment. With this in mind, in bulldozer designs D275A-5 developed by the company Komatsu, service points are conveniently located to allow easy and quick performance of necessary inspections and maintenance operations.
Grouped service points
For ease of service, the power train oil filter, power train component oil dipsticks, and hydraulic reservoir are located on the right side of the machine.
All alarm and indicator lamps on the monitoring panel are on for better visual clarity
Monitor with self-diagnosis function
When the start switch key is turned to the ON position, the letter "P" appears on the monitor display, and a pre-start check and safety warning message appears in the lower right corner of the panel. When abnormal conditions are detected, the alarm lamp lights up and the audible warning signal turns on. While the machine is running, the right corner of the monitor screen displays engine speed and forward/reverse gear engaged. In the event of abnormal conditions during operation, the user code and hour meter readings are displayed alternately. If an important user code appears on the screen, the alarm lamp flashes and the audible alarm sounds to warn of a malfunction, which helps to avoid serious failures.
Protection of hydraulic pipelines
The blade tilt cylinder hoses are fully mounted in the push bar to protect them from damage from material being moved.
Modular design of power train components
Modular power train components are sealed to allow removal and installation without oil spillage.
Checkpoints for checking oil pressure
Power train oil pressure checkpoints are grouped together for quick and easy diagnostics.
Maintenance free disc brakes
Wet disc brakes require less maintenance.
More spacious engine bay
The volume of the engine compartment has increased due to the higher installation of the hood, which facilitates the maintenance of the engine and auxiliary units.
Side engine doors opening up(installed on request)
The side doors of the new design are made for convenient access to the engine, which makes it easier to service the engine and replace the filter. The old design side doors have been replaced with thick solid sheets with bolted latches for added strength.
Low maintenance costs
New track link design
On a bulldozer D275A-5 Width and height of track links are used, as well as improved track guides. This increases undercarriage life and reduces maintenance costs by reducing the labor (in man-hours) required to install pins and bushings.
Dimensions Komatsu D275A-5
(With hemispherical blade and single ripper)
Ground clearance - 507 mm (1 ft 8 in)
Design features Komatsu D275A-5
- Excellent stability and low center of gravity due to exceptionally low machine profile
- Turbocharged and cooled engine
- Preventive Maintenance
- Simple frame design improves machine reliability
- New track link design
- New spacious cab
- Low drive undercarriage with long tracks and seven road wheels per side
- K-carriage system improves traction
- Rippers (installed on request)
Bulldozer KOMATSU D275A-5
Bulldozer engine KOMATSU D275A-5
This economical engine, coupled with the machine's high weight, makes the D275A-5 a top-notch crawler for hard rock ripping and dozer work. This engine is designed to achieve lower emission levels than required by the environmental standard. The engine of the KOMATSU D275A-5 bulldozer is equipped with direct fuel injection, turbocharging and charge air cooling systems, which saves fuel as much as possible.
High capacity plow
With a dozer blade capacity of 13.7 m 3 (hemispherical) and 16.6 m 3 (spherical), the KOMATSU D275A-5 delivers excellent performance. The front plate and side cheeks of the blade are made of high-strength steel to increase the strength of the structure.
The use of a dual tilt blade (optional) increases productivity with less operator effort:
1. Optimum blade cutting angle for all types of materials and slopes of any steepness can be selected on the go, which increases blade loading and machine productivity.
2. Operations including digging, bulldozing (cargo moving) and unloading (leveling) are easy and smooth, which reduces operator fatigue.
3. Blade skew angle and set-up speed are twice that of the same blade with single skew.
Comfortable working conditions for the operator
1. Pressurized cabin of a new design(installed on request).
- Newly designed cab and large tinted glass windows provide excellent visibility to the front, sides and rear.
- The use of air filters and the creation of excess pressure inside the cabin
2. New cab with damping element and undercarriage with K-carriages improve operator comfort while the machine is in motion. The cab suspension of the KOMATSU D275A-5 bulldozer uses damping elements of a new design that effectively absorb shock loads and vibrations due to their significant length of stroke. Damping cab suspension units and a new undercarriage equipped with K-carriages dampen shock and vibration when the machine travels over uneven terrain, which is not possible with a conventional cab suspension system. A soft damper spring isolates the cab from the machine base frame, absorbing vibration and providing a smooth ride and operator comfort.
3. New reclining seat. The KOMATSU D275A-5 bulldozer uses a new seat design with an elastic suspension. Guides for the longitudinal movement of the chair and a spring of a modified design have increased strength and rigidity, which reduces the free play of the components of the chair. The new seat provides excellent support for the back and arms, creating a comfortable environment for the operator while the machine is in motion. The possibility of longitudinal movement of the chair allows you to adjust its position depending on the height of the operator.
Standard equipment of the bulldozer KOMATSU D275A-5
1. Alternator, 75A/24V
2. Reversing signal
3. Rechargeable batteries - 2 x12 V, 170 Ah
4. Blower
5. Decelerator pedal
6. Dry type air cleaner with dust extractor and clogging indicator
7. Final drive housing wear shield
8. Hinged front guard
9. Hinged underguard with front pull hook
10. Hydraulic track tensioners
11. Lighting system (including two front, two rear lights)
12. Silencer with rain cap
13. Wrist force motion control system
14. Expansion tank of the cooling system
15. Racks for ROPS
16. Multi-section drive wheels
17. Caterpillar carts with seven road wheels
18. 610 mm (24 in) single grouser rock shoes
19. Starter, 11 kW/24 V
20. Suspension seat upholstered in synthetic leather
21. TORQFLOW hydromechanical transmission
22. Torque converter
23. Protection of road wheels
24. Beep
25. Wet side clutches/brakes
Bulldozer equipment KOMATSU D275A-5 supplied on request
1. Air conditioner with heater and defroster
2. Alternator, 90A/24V
3. Car stereo
4. Counterweight
5. Double tilt dozer blade
6. Fire extinguisher
7. Hitch
8. Hydraulic system for ripper control
9. Headlight for illumination of the ripper
10. Rear view mirror
11. Panel cover
12. Perforated side covers
13. Perforated single protective grille
14. Push plate
15. Seat belt
16. Shoes
17. Dozer blade canopy for material retention
18. Dozer blade canopy for material retention
19. Heavy Duty Blade
20. Reinforced universal blade
21. Shoe slip control system
| Specifications bulldozer Komatsu D275A-5 | |
| Bulldozer weight, kg | 37680 |
| Operating weight, kg | 50850 |
| Minimum turning radius, mm | 3900 |
| Bulldozer engine Komatsu D275A-5 | |
| Model | Komatsu SDA6D140E |
| Type | four-stroke, liquid-cooled, direct injection |
| Suction type | turbocharged and air-cooled |
| Flywheel power at 2000 rpm, hp | 410 |
| Number of cylinders | 6 |
| Piston diameter, mm | 140 |
| Piston stroke, mm | 165 |
| Working volume, l | 15.24 |
| Refueling tanks of the Komatsu D275A-5 bulldozer | |
| Fuel tank, l | 840 |
| Engine cooling system, l | 130 |
| Engine lubrication system, l | 52 |
| Hydromechanical transmission, l | 90 |
| Final drive housing (on each side), l | 40 |
| Hydraulic system of the Komatsu D275A-5 bulldozer | |
| Maximum flow, l/min | 230 |
| Safety valve setting, MPa | 27.5 |
| hydraulic cylinders | piston, double acting |
| Bulldozer equipment hydraulic control capacity | |
| Hemispherical dozer blade control with variable tilt angle, l | 130 |
| Control of a spherical bulldozer blade with a variable tilt angle, l | 130 |
| Ripper control (optional) | |
| Single-tooth ripper control, l | 38 |
| Multi-shank ripper control, l | 38 |
| Chassis of the bulldozer Komatsu D275A-5 | |
| Suspension | oscillating type, with balance beam and kingpin |
| Roller frame | cylindrical shape, made of high-strength steel |
| Rollers and guide wheels | lubricated track rollers |
| Number of shoes (each side) | 39 |
| Single lug height, mm | 88 |
| Shoe width (standard), mm | 610 |
| Support area, cm 2 | 42456 |
| Number of track rollers (each side) | 7 |
| Number of carrier rollers (each side) | 2 |
| Specific ground pressure, KPa (kgf / cm 2) | 118 (1.20) |
