Dimensions of the pipe layer d 355. Technical characteristics of the Komatsu D355 bulldozer
The Japanese engineering company Komatsu is a well-known manufacturer of road and special-purpose, including military, equipment. The company operates 22 factories where all components and assemblies are produced. A powerful research and development base allows the corporation to always be among the trendsetters and new design solutions in the production of bulldozers, excavators and road machines.
Komatsu bulldozers
The production of bulldozers began with the release of the D 50 model in 1947. Since then, the company's production facilities have mastered the production of more than 50 models and modifications of bulldozers with a weight range from 8 to 108 tons and a power range from 80 to 900 hp. The volumes of bulldozer dumps also inspire respect - from 1.8 m³ to an unimaginable 43 m³. The company also holds the record for creating the largest modern bulldozer for open-pit coal mining.Komatsu machines are equipped with straight rotary, spherical or hemispherical blades with the ability to adjust the skew and additional equipment:
- Rippers;
- Extenders;
- Slopes;
- Winches.
- EX – rotary blade;
- A – spherical, with skew adjustment;
- E – hemispherical blade.
Bulldozers Komatsu D355A
In the category of middle-class machines, we can note one of the most popular models - the Komatsu D355A bulldozer. This is a machine with a dead weight of 56.6 tons, equipped with a Komatsu SA6D155A engine, developing power up to 400 hp at 2 thousand revolutions.The overall dimensions of the machine are not too huge - 7375x4315x4125 mm, which allows it to be used in quarries and on construction sites and roads. The speed of the bulldozer reaches 13 km/h. This allows the bulldozer to independently move quite long distances in a short time. To transport cars between objects on highways or other hard-surface roads, special trailers are used.
The Komatsu D355A crawler bulldozer can be equipped with tracks of increased width to allow operation on marshy and light soils. Wide track shoes reduce the specific pressure on the soil and prevent the machine from diving deeply and getting stuck.
These machines have been known in Russia since the times of the USSR - the first bulldozers of this model were delivered in 1982. Until the end of their production life in 1997, more than 3,000 Komatsu D355A crawler bulldozers were sold to Russia and the CIS countries, most of which are still in operation. New Komatsu bulldozers of this model are not currently produced.
This longevity is determined by a reliable design using only proven technical solutions. There are no electronic control systems in the car. All processes are controlled by mechanical and hydraulic devices. A distinctive feature of the bulldozer is its maintainability. Even complex repairs do not require the use of special devices.
Hydraulic system and chassis
The Komatsu D355A crawler bulldozer owes its reliable operation and popularity, first of all, to its powerful and simple hydraulic system and chassis design. The hydraulics operate from a gear-type pump that produces a hydraulic fluid flow of 396 l/min at a speed of 2000 1/min. The hydraulic system is equipped with control spool valves and an oil tank with a capacity of 100 liters.The TORQFLOW transmission provides 4 forward and reverse speeds and consists of a torque converter, gearbox, multi-plate clutch and an effective forced lubrication system. The mechanical steering system is equipped with a wet clutch and foot brakes. It provides a bulldozer turning radius of 3.9 meters.
The Komatsu D355 bulldozer can reach speeds ranging from 3.3 to 12.7 km/h forward and from 3.2 to 12 km/h back.
Bulldozer equipment
The Komatsu D355A crawler dozer is equipped with a straight adjustable blade with a width of 4.315 mm. The height of the dump exceeds 1.8 meters and the weight is 8.5 tons. The control is carried out by a hydraulic drive with two lifting cylinders and one skewing control cylinder. The diameter of the lifting devices is 16 cm, and the skewing cylinder is 25 cm.A ripper with a variable loosening angle develops soil to a depth of up to 1.4 meters. Its weight reaches almost 5.4 tons. All work is controlled by a joystick using powerful hydraulic cylinders with a diameter of 22.5 cm.
The cabin also deserves attention. The Komatsu D355A bulldozer is equipped with a steel cab with double glazing, a heater and a fan. The cabin is protected from deformation when turning over and is reliably insulated from noise. Four powerful headlights enable night work.
The Komatsu D355 heavy pipe layer is a set of mechanisms for installing and connecting elements of a large pipeline, assembled on a single platform. This model has a high reliability rate, it is unpretentious and trouble-free. This pipelayer has a high level of autonomy. It is well adapted to work independently without the support of other special equipment.
The Komatsu D355 is a heavy-duty crawler pipelayer that is designed to perform a full range of work during lifting and installation operations in the construction of oil and gas pipelines. This special vehicle is characterized by high reliability and autonomy in operation, the ability to effectively perform its tasks in complete off-road conditions - on flat or mountainous, swampy or desert terrain, in a wide variety of climatic zones.
Komatsu D355 is the most powerful and productive in the line of pipe layers produced by the Japanese company Komatsu. There are also models D85C and C, which have a lifting capacity of 41 and 72 tons, respectively. All the named machines are of the same type in terms of the diagrams of their crane equipment.
The pipelayer is equipped with a Komatsu SA6D 140-2 four-stroke in-line six-cylinder diesel engine, liquid-cooled, turbocharged. The engine displacement is 15.24 liters. The cylinder diameter is 140 mm, the piston stroke is 165 mm. The power of this power unit is: gross (SAE J1995) - 277 kW (377 horsepower), at a rated speed of 2,000 rpm; net - (ISO 9249 / SAE J1349) - 265 kW (361 horsepower), also at 2,000 rpm.
The Komatsu SA6D 140-2 diesel engine is equipped with direct diesel fuel injection, a mechanical fan, an air cleaner, an alternator, a water pump, a lubrication pump, a muffler and a fuel pump, and a mechanical all-mode speed controller. Lubrication is carried out by forced means, using a gear pump; The system has a full-flow filter. The dry air cleaner with automatic dust extraction ensures longer filter element life and has a dust indicator to simplify regular maintenance.
Pipelayers of this model are equipped with autonomous internal combustion pre-heaters, which heat up the diesel engine, power transmission and battery box. The electric heater, with an external power source, is capable of always maintaining the power unit in a warm state.
Torque Flow Transmission
Komatsu's proprietary Tork Flow progressive transmission reliably provides easy and smooth gear changes, as well as instantaneous forward and reverse shifting.
As part of the original Komatsu TORQFLOW transmission -
- three-element, single-stage, single-phase liquid-cooled torque converter;
- gearbox with planetary gear and multi-plate clutch with hydraulic drive and forced lubrication.
The transmission is designed to ensure optimal heat dissipation. Gear shifting (three forward gears and three reverse gears), as well as forward-reverse switching, is done using a single lever. At any time on the work site, it is possible to set the optimal speed of the special vehicle in relation to the specific work being performed. Accidental starting - the start of the special vehicle from a standstill is prevented by the gear shift lever lock and the neutral locking safety switch.
The speed of movement of the pipelayer is: forward: 1st gear – 3.5 km/h; 2nd gear – 6.2 km/h; 3rd gear – 10.5 km/h; reverse: 1st gear – 4.2 km/h; 2nd gear – 7.7 km/h; 3rd gear – 11.2 km/h.
The final transmission is with a 2-stage gearbox consisting of a spur gear and a planetary gear. It extremely weakens the impact load on the power transmission units. The segmented sprocket rims are secured with bolts, making them easier to replace in the field.
In order to reduce the deforming load on the transmission units, the manufacturer of the pipe layer provides rotation transmission through spur and planetary gear mechanisms. To quickly change the segmented drive sprocket, a bolt-type fastening is used.
Steering system
Multi-disc oil-filled steering clutches are lever-operated, hydraulically driven and require no adjustment. The steering band brakes are oil-filled and foot controlled. They are equipped with a hydraulic booster, which ensures light touch control and long service life. The minimum turning radius of the pipelayer is 4.67 meters.
Oil-filled steering clutches and brakes increase service life. They are interconnected, and this allows for quick maneuvers in response to movement of the steering lever.
Frame, suspension and chassis of the pipelayer
The design of the pipelayer uses a box-section track roller frame and a rigid suspension made of high-strength steel. The rollers and idlers feature track shoe bushings that are lubricated to last their entire service life. The supporting rollers and guide wheels are hermetically sealed with floating seals.
Original dust seals that effectively prevent abrasive particles from entering the gaps between pins and bushings, thereby increasing their service life. Track tension can be easily adjusted using the grease pump. The protective shields of the rollers (central and lower) reliably prevent various abrasive materials and large stones from getting inside the caterpillar drive.
- The number of shoes is 42 pieces on each side of the chassis.
- The number of support rollers is 8 pieces on each side.
- The number of support rollers is 2 pieces on each side.
- The lug height is 88 millimeters.
- Shoe width (standard version) – 860 mm.
- The supporting surface area is 64.5 thousand cm2.
- Ground pressure – 94.1 kPa, 0.96 kg/cm2.
The Komatsu D355 pipelayers use exactly the same chassis as the bulldozers of this manufacturer. Thanks to its exceptionally high strength, repeatedly tested in practice, operational efficiency and ease of maintenance, it can be used for a very long time and is unpretentious to difficult working conditions.
The Komatsu D355 pipelayer has a serious lifting capacity and is ideal for working on large pipelaying sites and areas, wherever pipe laying with a diameter of more than 48 inches is required. The working radius of the pipes with which this special machine works is from 1.3 m to 8.5 m.
The hook speeds (with an empty drum) on lifting and lowering are the same - 6.8 m/min (low), 13.3 m/min (high). The boom has a box-section design. It is made of steel, which has high tensile strength, and is designed for heavy duty use. The wire-controlled boom is equipped with an automatic stop device at the maximum lift position, which prevents excessive lifting of the boom. The boom length is 8.56 meters. Its mass is 2.52 tons.
The special vehicle is equipped with a winch, the control of which is hydraulically driven; two drums; a reversing mechanism that allows you to simultaneously move both the hook and the boom. The hydraulic drive is equipped with a planetary gearbox. The dimensions of the parts of this winch are as follows: hook drum - 290 mm diameter x 334 mm width; boom drum 290 mm diameter x 166 mm. The cable capacity is equal to: hook (with attachment) – 20 mm x 95 m; boom (with attachment) – 20 mm x 65 m; hook (max) – 20 mm x 190 m; boom (max) – 20 mm x 80 m.
The counterweights are segmented plates weighing 1530 kilograms. There are six plates in total. The control is equipped with a hydraulic drive. The total weight of the equipment (including six plates, frame and hydraulic cylinders) is 12,900 kilograms.
A grooved-type drum for the hook cable with an optimized roller prevents uneven winding of the cable and reduces its lateral slippage at the edge of the drum. And the adjusted location of the drum roller helps to correct deviations in the direction of the cable at the beginning of winding. Rocking of the pipes and the possibility of their accidental damage due to sudden stops during the lifting or lowering process are prevented by hydraulic transmission on the hook movement drive.
The Komatsu D355 pipelayer's hydraulic winch ensures consistent precision and smoothness in all operations. Easy-to-move, short-stroke levers facilitate precise control of pipe movement and prevent unintended swing and accidental damage.
The boom and hook control levers are independent, mounted on the same side along with the high and low speed controls, so both functions can be operated simultaneously with one hand. In addition, movement controls are located on the opposite side, which provide joint control of the movement of the special vehicle and the movement of pipes.
Exceptional controllability is achieved thanks to the hydraulic drive. 2 power transmissions with 2 drums reliably and independently control the boom and hook drives. This means that the implementation of each of the 2 functions does not need to be coordinated with the implementation of the other. The force is transmitted from the hydraulic motor through a multi-disc clutch, which is equipped with a braking unit.
Other technical characteristics in numbers
- Operating weight (together with all equipment: hook, boom, winch, counterweights, as well as the nominal volume of lubricant, coolant and diesel fuel) – 62 tons.
- The pipelayer's lifting capacity is 93 tons.
- Overall dimensions: total length – 6.03 meters; full width – 4.405 meters, cabin width – 1.57 m; maximum height 9.35 m (with raised boom and hook).
- The length of the support area of each caterpillar is 3.75 m.
- Track width – 2.55 m.
- Volume of technical tanks of the pipelayer: fuel tank for diesel fuel - 640 liters, coolant tank - 145 liters, motor oil - 42 liters, coupling (pump) - 1.7 liters, transmission (torque converter, gearbox, bevel gear and system steering) – 230 liters; final drive (on each side) – 68 liters; winch (gearbox) – 25 liters; hydraulic tank – 210 liters.
The pipelayer's steel cab provides the operator with ample space and comfort. A powerful and high-performance heater is capable of keeping the interior of the cabin warm even in extremely cold weather and severe frosts. The cabin sealing is very good, providing decent not only heat protection, but also dust and noise and vibration protection.
The cab of the Komatsu D355 pipelayer is largely glazed, and thanks to this, the operator of the special vehicle has the opportunity to have a complete overview of everything that is happening on the site where his special equipment is working. Also, the operator always has maximum visual control of the individual components of the pipelayer.
The manufacturer equips the cabs of pipelayers with emergency protection systems. For this purpose, steel inserts are used, reinforcing the entire cabin structure, and it is also possible to install protective grilles.
The controls for the movement and working equipment of the pipelayer are designed in full accordance with current ergonomic requirements - they are all quite convenient and located literally at hand. Integrated brakes and steering clutches provide responsive and trouble-free steering. The counterweight position control is located next to the operator's seat. This chair, equipped with a hydraulic suspension, helps you work long shifts productively and without fatigue.
The cabin suspension is based on viscous-type dampers, which significantly softens shaking and vibration loads on the workplace, creates a comfortable environment for the operator and increases the overall service life of components and parts.
The main control of the crane's actions: the movement of its boom and hook is carried out by three levers, which are connected to a hydraulic servo drive. Komatsu pipelayers are required to be equipped with a special monitoring system. The sensors that are part of it are located on devices that have electronic controls. The information received from this system is immediately quickly processed by the central unit and sent to the operator control panel of the Komatsu D355 pipelayer. Protection is built into the equipment, which makes it possible to avoid management errors. The lever used to switch the operating modes of the lifting mechanism has a special locking unit.
There is a torque indicator. It is a safety device that alerts the operator when the lift limit has been reached and also notifies him to adjust the boom position. A special alarm device for excessive lifting is designed to warn the operator about excessive lifting of the hook roller block, preventing damage to critical equipment components in cases of cable breakage. The Load Indicator maintains a high level of pipelay safety by helping the operator determine at a glance the acceptable operating range and rated load capacity based on boom angle.
The Komatsu bulldozer is a vehicle used to perform various jobs on industrial sites and in agriculture.
Description and characteristics of the model range
The model range includes:
- D-65;
- D-85;
- D-155;
- D-275;
- D-355;
- D-375;
- D-455;
- D-475;
- D-575.
Komatsu bulldozers: technical characteristics depend on the selected modification.
D65
The Komatsu D65 bulldozer is designed to perform work on construction sites and in quarries. It is used for leveling and moving various loads, for performing excavation work, cleaning areas and backfilling 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 | |
| Largest dump volume | 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 | Front wheels - 1850 mm Rear wheels - 1700 mm |
| External turning radius | 5800 mm |
D85
This bulldozer model is used to move large volumes of various cargo over short distances. The equipment can also be used 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*3365 mm |
| Number of batteries | 2 |
| Battery capacity | 170 Ah |
| 480 l | |
| Cooling system volume | 79 l |
| Hydraulic system volume | 90 l |
| Track | On the front wheels - 2000 mm Rear wheels - 2000 mm |
| Maximum blade lift | 1210 mm |
| 540 mm | |
| Track Dimensions | 560*610*660 mm |
D155
The Komatsu D155A bulldozer is a vehicle designed to perform work in quarries and 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 container | 500 l |
| Cooling system volume | 99 l |
| Track | 2100 mm |
D275
Komatsu D275 is used for layer-by-layer development of soil and its movement. A four-stroke diesel engine is installed here, manufactured in accordance with the international environmental standard Euro-2. The power unit model is SDA6D140E. The vehicle is also equipped with a TORQFLOW transmission with five gears and reverse.
Technical indicators and model data:
D355
The Komatsu 355 bulldozer belongs to the medium traction category. This modification has a simple design and a reliable, powerful engine. Among the advantages of the Komatsu D355A are:
- speed of filling trenches;
- layer-by-layer removal of soil;
- the presence of a ground leveling function;
- profiling of embankments;
- construction of dams and dams.
Technical characteristics and parameters of transport:
D375
The Komatsu D-375 wheeled bulldozer is equipped with a SA6D170E diesel power unit and a TORQFLOW gearbox.
The equipment is designed for loosening soil, leveling the surface, backfilling trenches and removing old road surfaces.
This transport can also be used for mining and building dams.
Characteristics and indicators:
D455, D475 and D575
The Komatsu 455 bulldozer is a crawler tractor with a VTA1710-C800 four-stroke diesel engine. This model is suitable for work on construction and industrial sites. The tractor motor is manufactured in accordance with the international environmental standard Euro-3.
Technical data and characteristics:
| Full mass | 71500 kg |
| Maximum transport speed | 14.4 km/h |
| Specific pressure exerted on the ground | 96.1 kPa |
| Largest dump volume | 6 m3 |
| Fuel tank volume | 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 engine 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 | Front wheels - 2600 mm Rear wheels - 2600 mm |
The D475 crawler tractor is equipped with a hydraulic power steering and a SAA12V140E-3 diesel power unit, which is made in accordance with the Euro-4 environmental standard.
Parameters and indicators:
| Full mass | 108390 kg |
| Number of cylinders | 12 |
| Displacement of the power unit | 30.48 l |
| Motor power | 890 horsepower |
| Highest crankshaft speed | 2000 rpm |
| Cylinder diameter | 140 mm |
| Piston stroke | 165 mm |
| Highest movement speed | 14 km/h |
| Ground clearance | 655 mm |
| Wheelbase | 4524 mm |
| Dimensions | 11565*5265*1196 mm |
| Fuel fluid container | 1670 l |
| Cooling system volume | 210 l |
| Hydraulic system volume | 240 l |
| Track | Front wheels - 2770 mm Rear wheels - 2770 mm |
| Maximum blade lift | 1620 mm |
| Maximum blade depth | 1010 mm |
| Track Dimensions | 710*810*910 mm |
Modification D575 is the largest bulldozer.
Technical data:
How much does a Komatsu bulldozer cost, and what analogues are on the market?
Average cost of various modifications:
- Komatsu D65EX-16, 12 — RUB 8,100,000;
- new Komatsu 85 - RUB 5,500,000.
Analogs: CAT, Shantui and TZ-B10.
The Komatsu 355 bulldozer is a classic crawler tractor, which, according to its traction characteristics, belongs to the class of more than 150 kN. This model has been known since the 80s - the technique has found wide application at various facilities, as well as for solving certain specific problems. This model first appeared in Russia in 1997. Since then, her popularity has grown steadily.
A pipelayer with similar technical characteristics was supplied with the same markings, but only with the index “C”. The D355A-3 bulldozer belongs to the category of heavy construction equipment. In this segment it is one of the leaders. At the moment, production of the equipment has ended and today only used copies can be found on the market.
The komatsu d355a bulldozer is designed to perform work on moving soil and other bulk materials on a construction site. The power of the machine allows you to move various objects and loads over a set distance. A bulldozer is often used to level or clear a construction site.
Specifications
The technical characteristics of the Komatsu D 355 do not make the model the undisputed leader in the category. But, nevertheless, this model is not inferior to similar models in the category of heavy tracked tractors.
In absolute numbers, the bulldozer has the following parameters:
- The height is 4125 mm.
- The width is 3030 mm.
- Case length 5405 mm.
Komatsu 355. Rear view
Bulldozer weight is 54.19 tons. At the same time, the developers tried to make the design as ergonomic and compact as possible. The rear body has a 1-tooth ripper and the front has a standard straight blade.
Caterpillars bulldozers have special heavy-duty and durable lugs that are 8.8 centimeters high. Such devices allow you to move reliably and accurately on any surface. The track design is a 2.6 meter track.
The track also has 39 shoes. The width of the tape is 710 millimeters. When driving, the turning radius of the vehicle is 3700 mm, and the ground clearance of the vehicle is 575 mm.
Engine characteristics
Komatsu D 355 has a high-quality diesel engine, which ensures reliable operation and sufficient power in operation. The features and key technical characteristics of the motor are as follows:
- The operating power of the unit is 410 horsepower and is capable of developing 2000 rpm.
- A turbocharging system is installed.
- Direct injection system.
- Engine capacity is 19.26 liters.
- 6 cylinders, each measuring 15.5 centimeters.
- There is a special air purifier.
- Special water engine cooling system, which also has a reverse fan and forced circulation.
Cabin
The bulldozer cabin provides the operator with ample space, which makes work comfortable. The cabin structure is made of specially prepared metal coated with an anti-corrosion coating. This significantly increases the service life of the cabin.
Fuel consumption
During operation, the D 355 bulldozer produces fuel consumption of approximately 75-80 liters per hour. The fuel tank has a volume of 750 liters.
Device
D355A-3 has a durable straight blade that has a skew that can be adjusted. Weight is 8.7 tons. The width of the blade is 4315 millimeters, the height is 1875 millimeters. The skew is controlled using a hydraulic drive.
The straight blade is capable of moving in vertical and horizontal planes.
Advantages and disadvantages
The D355A-3 bulldozer has the following practical advantages:
- Reliability of operation.
- Wide functionality.
- Structural strength.
- Moderate cost of the car.
Since the car is not produced, its capabilities may be inferior to some modern models, which is the main disadvantage bulldozer
Komatsu 355 at work
Komatsu D355A is a popular middle-class crawler bulldozer (traction category - more than 150 kN). This family appeared on the domestic market during the USSR. The debut deliveries of equipment took place in 1982. Over 15 years, the volume of exports to the CIS countries and Russia exceeded 3,000 units. Many of the machines delivered during that period continue to operate today.
The longevity of the Komatsu 355A model is due to its simple and reliable design, which uses only proven technical solutions. There are fewer electronic control systems in the bulldozer than in other products of the brand, and the main processes are regulated through hydraulic and mechanical devices. Also, the Komatsu D355A is highly maintainable.
The simplicity of the design became the key to the popularity of the model. The series was produced before Japanese products began to be equipped with complex electronic devices, and therefore had intuitive controls and were unpretentious. Komatsu D355A could be used in difficult conditions at temperatures from +40 to -50 degrees.
The main purpose of a bulldozer is to move bulk materials and soil over short distances on construction sites. It is often used for clearing sites. Komatsu 355A is also used for various earthworks:
- quick backfilling of trenches;
- layer-by-layer removal of soil;
- surface leveling;
- profiling of embankments;
- construction of dams and dams.
The model can be found in mining sites for various minerals, where its technical characteristics and reliability were especially valued.
Modifications and features
Komatsu D355 is available in 2 variations: bulldozer (index “A”) and pipe layer (index “C”). The production of the bulldozer version ended quite a long time ago; the Japanese brand continues to produce the pipe layer in limited quantities.
- wide caterpillar tracks and strong lugs made it possible to move on any terrain;
- maneuverability and small turning radius made it easier to perform work in confined spaces;
- a heavy-duty cab with operator protection ensured maximum safety regardless of operating conditions;
- a powerful motor with a liquid cooling system made it possible to perform highly complex work for a long time;
- air pollution control and air purifiers made the cabin conditions as comfortable as possible;
- Rear view mirrors, headlights and sun visors made it easy to drive the car at any time of the day.
Dimensions:
- length – 8700 mm;
- width – 4230 mm;
- height – 2700 mm;
- ground clearance - 565 mm;
- front track – 2260 mm;
- rear track – 2260 mm;
- track length – 3365 mm;
- minimum turning radius – 3700 mm.
The operating weight of the machine is 54,190 kg, the weight of unloaded equipment is 36,100 kg. The bulldozer is equipped with tracks of different widths (basic size - 710 mm) with a lug height of 88 mm. The area of the supporting surface is 4.77 sq.m, the pressure on the ground is 0.90 kg/sq.cm. Komatsu D355 is capable of reaching speeds of up to 13 km/h.
The bulldozer is designed for operation in temperature conditions from +40 to -50 degrees.
Equipment characteristics:
- basic blade - straight with adjustable hydraulic skew;
- dump capacity – 11.4-16.6 cubic meters;
- base weight – 7830 kg;
- length – 4315 mm;
- height – 1875 mm;
- maximum skew adjustment range – 1000 mm;
- maximum lifting height – 1545 mm;
- maximum penetration into the ground is 700 mm.
Refill containers:
- cooling system – 180 l;
- torque converter - 230 l;
- engine – 71 l.
Design and operating features
Komatsu D355 has a wide range of uses. The bulldozer's design features help it perform various operations.
This model has a simple design and is characterized by the reliability of the main components, which provide a long service life.
The main elements of the equipment are produced by the Japanese brand independently, thanks to which the quality of the bulldozer remains consistently high.
The Komatsu D355 is based on a frame made of high-strength steel. It ensures the reliability of the design. The running gear of the bulldozer is highly technological.
Despite the fact that the first models of equipment appeared quite a long time ago, they already used the K-shaped design of the roller bogie, which provided a number of advantages. The technology maintained constant contact between each track link and the roller.
Due to this, the movement became smoother, and shock loads were significantly reduced, which extended the service life of the bulldozer. Also, the chassis with a K-shaped bogie design improved the transmission of traction force, increasing the maneuverability of the vehicle.
Chassis characteristics:
- suspension – independent with a balancing transverse beam;
- number of road wheels (on each side) – 7 pieces;
- track type – prefabricated with high-strength lugs;
- number of shoes (on each side) – 39.
Komatsu D355 was equipped with its own Torqflow transmission. It included the following elements:
- 4-speed gearbox (forward and reverse speeds were present);
- multi-plate clutch;
- torque converter;
- forced lubrication mechanism.
The steering system was equipped with foot brakes and a “wet” clutch, simplifying the maneuvering process. To the right of the flywheel was a power take-off that supplied force to the crankshaft.
Transmission characteristics:
- type – with planetary gears, forced lubrication and multi-disc clutch;
- The main gear is bevel spiral gears.
The hydraulic system has a simple design and operates from a gear-type pump that produces a fluid flow of 396 l/min. The system is equipped with an oil tank and control spool valves.
The Komatsu D355 is equipped with a heavy-duty steel cab with double glazing. The structure is made of metal that has undergone special treatment and has an anti-corrosion coating. Thanks to this, the bulldozer can easily withstand aggressive external environments.
The interior is spacious and has a fan and heater inside to maintain comfortable temperatures. There is virtually no noise entering the cabin. The bulldozer allows you to work in the dark due to 4 powerful headlights.
The cabin also has increased protection against deformation and provides maximum safety for the operator.
Komatsu D355 represents the old generation. Electronic control systems on bulldozers are practically not used. Basic operations are performed manually, which slows down the process. The absence of electronics makes the technology more unpretentious.
Various attachments are used with a bulldozer. The basic device uses a straight adjustable blade. Additionally, the model can be equipped with a ripper with a variable loosening angle, slopes, winches, flaps, and extensions. Wider tracks are also offered for the equipment, allowing it to move through swampy areas.
Maintainability is a strong point of the Komatsu D355. Special equipment for routine repairs is not required; the driver can perform certain operations independently.
Engine
Komatsu D355 is equipped with a 4-stroke diesel unit SA6D155-4A (manufacturer - Komatsu). Features of the power plant:
- direct fuel injection system;
- turbocharging;
- air purifier, complemented by an air pollution control indicator;
- liquid cooling system with forced circulation and reverse fan;
- top location of valves.
Characteristics of the SA6D155-4A motor:
- working volume – 19.26 l;
- rated power - 305.7 (410) kW (hp);
- maximum torque – 1760 Nm;
- rated speed – 2000 rpm;
- number of cylinders – 6;
- cylinder diameter – 155 mm.
The average fuel consumption of a bulldozer is in the range of 75-80 l/hour. The large fuel tank (capacity – 750 l) allows operation without refueling for 8-10 hours. The unit is started by the starting motor.
Price
Production of the Komatsu D355 bulldozer ended quite a long time ago, but its long service life allows the model to be used today. A used version would be a good buy. Cost of used models:
- 1987-1990 - 1.2-4 million rubles;
- 1994-1997 - 4.4-8.3 million rubles.
Source: http://BuldozerSpec.com/buldozer-komatsu-d355a/
Komatsu 355 bulldozer - ideal characteristics at an affordable price
The modern bulldozer of the Komatsu d355 brand is a special high-quality product of the modern machine-building company of the same name. The organization has been specializing in the production of innovative road and specialized equipment for quite a long time.
All without exception, structural components, as well as units are being produced strictly at enterprises himself Japanese manufacturer.
The entire variety of equipment from this manufacturer is distinguished by a common characteristic - the presence of a Torqueflow gearbox, which is controlled exclusively by one joystick.
Purpose of the bulldozer
The bulldozer belongs to the category of the most popular and popular in its middle class.
Its relatively small size makes it possible to use the machine on roads of a wide variety of structures, on construction sites, as well as in quarries.
The scope of application of the Komatsu D355 is quite extensive. Such devices are widely used in the implementation of land work processes, among which we can note:
- Soil removal;
- The process of high-quality profiling of embankments;
- Construction of dams and dams;
- Leveling surfaces;
- Trenches can be backfilled effectively.
In addition, this brand of bulldozer indispensable for the extraction of various minerals. The machine is ideally suited for a wide variety of construction and repair work, as well as for moving large loads over relatively short distances.
Technical characteristics of the bulldozer Komatsu (komatsu) d355
Modern and previously released models of bulldozers of this brand have been in use for many years. This is based on the fact that the devices are reliable and durable.
There are no electronics in these bulldozers, but we can note the ideal functional and high-quality technical characteristics of the Komatsu 355 bulldozers. Among them are:
General consumption used fuel averages 80 l/hour. Fuel tank volume amounts to 750 liters.
Information about the structure of the bulldozer
Komatsu bulldozers are characterized by a fairly wide range of applications. This is primarily based on the fact that manufacturers put a huge amount of effort, skill and knowledge into the development process of each structural element - engine, chassis, control area and so on. Each of them will be described in more detail below.
The company's managers always keep their finger on the pulse of the modern engineering industry, so consumers are offered only the most innovative technology.
Engine
Komatsu D355 is equipped with a high-quality reliable motor SA6D155A or SA6D140E. The company produces it independently, which means there is no doubt about the quality.
General engine power amounts to 302-400 hp The engine is able to maintain a fairly high torque, which is quite important for standard bulldozer work.
The bulldozer is equipped with motors that are characterized by sufficient low noise level. This is ensured by the presence of a special radiator guard, which removes sound from the engine. The engines of cars from this manufacturer are equipped with a special injection system. All this has a positive effect on the overall efficiency of the produced power transmission.
Transmission
The bulldozer is equipped with a high-quality transmission category TORQFLOW, which has 4 forward and reverse speeds. It consists directly of a gearbox, there is a torque converter, a multi-plate clutch, and a forced lubrication system. In addition, there is an effective steering system consisting of foot brakes and a “wet” clutch.
Hydraulics
This system operates from a special gear-type pump and at the same time has a special 100-liter oil tank with control spool valves.
Cabin
Cabin completed made of quality steel. This element of a bulldozer has double efficient glazing, there is a heater and a fan.
The advantage of this equipment is that it allows for night operation. there are special ones for this 4 fairly powerful headlights. The cabin can turn over, while any deformation is quite reliably protected.
The operator works in comfort in the cab; the noise from the running engine does not penetrate into it.
Control
In a bulldozer of this brand electronic control systems are not used. Everything is done manually. This slows down the operations a little, but this does not affect the overall quality of control.
Many people prefer to buy these particular models of bulldozers, despite the lack of electronics, they are unpretentious during operation.
Chassis
The chassis of this device is characterized as high-tech.
There is a special K-shaped design of the roller bogie, which effectively maintains constant contact directly with the roller itself, as well as with each caterpillar link.
Thus, it is ensured increased machine durability and the most efficient transmission of the main traction force.
Attachment Options
This model is equipped with a huge amount of replaceable high-quality equipment. Among the hanging elements one can highlight flaps, rippers, slopes, and extensions. Bulldozers of this brand can additionally be equipped with tracks with a wider indicator, which will allow the machine to feel more confident on light and swampy soils.
Repair and maintainability
Effective maintainability is a fairly strong point of bulldozers of this brand. There is no need to purchase special equipment for routine repairs.
Bulldozer prices
The prices for such a bulldozer are relatively low. A used Komatsu D355 can be found and purchased for 3-3.5 million rubles.
A new bulldozer manufactured in 1986-1988 can be purchased at a price from 1,500,000 to 4,000,000 rubles. 1988 - 1997 production costs 4,000,000 to 7,000,000 rubles.
Price rental usually depends on a variety of indicators; on average, the price per hour of using equipment with an operator is 4000 rubles.
Analogues - equipment of the same class
Among the equipment analogues we can note the Shantui SD42 bulldozers, as well as the T-35. They all have similar basic technical characteristics and also perform all the same functions.
Photo Komatsu D355
The photo gallery illustrates the appearance features of the Komatsu 355 bulldozer, and also clearly shows the dimensions of the unit.
Conclusion
The crawler bulldozer of this brand is a real veteran of modern industrial development of construction equipment. A huge number of professionals working in the design and research fields work on the development and creation of models.
about the bulldozer
An amateur video with an exciting story - a Moskvich car versus a Komatsu d355:
Source: http://promspectehcentr.ru/stroitelnaja/buldozery/komatsu-d355.html
Bulldozer komatsu d355a
The Komatsu 355 bulldozer is a classic crawler tractor, which, according to its traction characteristics, belongs to the class of more than 150 kN. This model has been known since the 80s - the technique has found wide application at various facilities, as well as for solving certain specific problems. This model first appeared in Russia in 1997.
Since then, her popularity has grown steadily.
A pipelayer with similar technical characteristics was supplied with the same markings, but only with the index “C”. The D355A-3 bulldozer belongs to the category of heavy construction equipment. In this segment it is one of the leaders.
At the moment, production of the equipment has ended and today only used copies can be found on the market.
Purpose
The komatsu d355a bulldozer is designed to perform work on moving soil and other bulk materials on a construction site. The power of the machine allows you to move various objects and loads over a set distance. A bulldozer is often used to level or clear a construction site.
Specifications
The technical characteristics of the Komatsu D 355 do not make the model the undisputed leader in the category. But, nevertheless, this model is not inferior to similar models in the category of heavy tracked tractors.
In absolute numbers, the bulldozer has the following parameters:
- The height is 4125 mm.
- The width is 3030 mm.
- Case length 5405 mm.
Komatsu 355. Rear view
Bulldozer weight is 54.19 tons. At the same time, the developers tried to make the design as ergonomic and compact as possible. The rear body has a 1-tooth ripper and the front has a standard straight blade.
Caterpillars bulldozers have special heavy-duty and durable lugs that are 8.8 centimeters high. Such devices allow you to move reliably and accurately on any surface. The track design is a 2.6 meter track.
The track also has 39 shoes.
The width of the tape is 710 millimeters. When driving, the turning radius of the vehicle is 3700 mm, and the ground clearance of the vehicle is 575 mm.
Engine characteristics
Komatsu D 355 has a high-quality diesel engine, which ensures reliable operation and sufficient power in operation. The features and key technical characteristics of the motor are as follows:
- The operating power of the unit is 410 horsepower and is capable of developing 2000 rpm.
- A turbocharging system is installed.
- Direct injection system.
- Engine capacity is 19.26 liters.
- 6 cylinders, each measuring 15.5 centimeters.
- There is a special air purifier.
- Special water engine cooling system, which also has a reverse fan and forced circulation.
Cabin
The bulldozer cabin provides the operator with ample space, which makes work comfortable. The cabin structure is made of specially prepared metal coated with an anti-corrosion coating. This significantly increases the service life of the cabin.
Fuel consumption
During operation, the D 355 bulldozer produces fuel consumption of approximately 75-80 liters per hour. The fuel tank has a volume of 750 liters.
Device
D355A-3 has a durable straight blade that has a skew that can be adjusted. Weight is 8.7 tons. The width of the blade is 4315 millimeters, the height is 1875 millimeters. The skew is controlled using a hydraulic drive.
The straight blade is capable of moving in vertical and horizontal planes.
Advantages and disadvantages
The D355A-3 bulldozer has the following practical advantages:
- Reliability of operation.
- Wide functionality.
- Structural strength.
- Moderate cost of the car.
Since the car is not produced, its capabilities may be inferior to some modern models, which is the main disadvantage bulldozer
Komatsu 355 at work
Reviews
The D355A-3 bulldozer has earned positive reviews from users. Despite the fact that the model is no longer produced from the assembly line, today it can often be seen on the construction equipment market, which indicates the effectiveness of the bulldozer and its popularity.
Cost of new and used
The bulldozer model no longer leaves the assembly line, therefore, it is impossible to find a new machine. But the long service life of the model allows us to see quite a lot of used copies on the market.
Depending on the condition and configuration, the cost of a bulldozer can vary from 1.5 to 7 million rubles.
Analogues
Among the bulldozer models common today, the one most similar to the D355A-3 is the SD42-3 from the well-known manufacturer Shantui.
The Komatsu D355A-3 bulldozer is an example of reliable equipment capable of completing a large amount of work in a short time.
Source: https://traktoramira.ru/traktora/buldozery/buldozer-komatsu-d355a.html
Technical features of the Komatsu D355 bulldozer
Komatsu company specializes in the production of road and construction equipment. Its products are known for their high quality and functionality. One example is the Komatsu model D355 bulldozer.
Areas of application
Komatsu brand bulldozers are considered the most popular in their class. They are distinguished by compact dimensions and a wide range of useful functions, allowing them to be used in different directions.
The scope of application of such equipment is quite diverse:
- removing the required size layer of soil;
- profiling of embankments;
- construction of dams and dams;
- leveling any surfaces;
- digging trenches.
Increasingly, bulldozers of this model are used in the mining process, as well as when transporting heavy loads over short distances.
Main technical characteristics
Komatsu D355 does not have an electronic control system. But this does not prevent the special vehicle from remaining in demand among consumers of such equipment for many years.
From the technical characteristics of the Komatsu D355 bulldozer, several parameters can be distinguished:
On average, the car uses 80 liters of fuel per hour. Its fuel capacity is rated at 750 liters.
Internal structure of the equipment
The Komatsu D355 owes its popularity to the high-quality execution of its components.
Engine design feature
The SA6D155A (SA6D140E) device is installed in the bulldozer. Engine power ranges from 302 to 400 horsepower. Thanks to this, it is possible to maintain torque at the proper level.
These engines have two important advantages:
- low noise level;
- special injection system.
These characteristics significantly increase the efficiency of the equipment as a whole.
Engine KOMATSU SDA6D140E
Transmission operation
The transmission belongs to the TORQFLOW category. It has 4 speeds at once (front and rear).
The transmission includes the following elements:
- Transmission;
- torque converter;
- clutch;
- forced lubrication device.
There are foot brakes and a so-called “wet” clutch.
Gearbox Komatsu D355
Hydraulic system design
The Komatsu D355 hydraulics are powered by a gear pump. This piece of equipment has an oil tank with a capacity of 100 liters. It is equipped with several spool valves.
Cabin structure
High-quality steel was used to manufacture the cabin. Its distinctive features are:
- double glass;
- heater;
- fan.
For work at night, 4 large headlights are provided.
The cabin is so strong that it does not deform even during rollovers. In addition, the driver is comfortable in it, since he is protected from noise.
Komatsu D355 cabin inside
Equipment chassis
The bulldozer's undercarriage is a K-shaped structure, which allows the roller to maintain constant contact with each track link.
This device gives the Komatsu D355 high stability and makes its operation more efficient.
Chassis Komatsu D355
Availability of attachments
The bulldozer is equipped with 2 main additional elements.
Hydraulically operated adjustable blade (straight). The blade moves in two planes: horizontal and vertical. Plus, it can work in floating mode. The control hydraulic drive has 2 lifting cylinders and 1 skewing cylinder.
Large ripper. It is lifted using hydraulic cylinders. Located at the rear of the bulldozer. Its structure allows you to change the loosening angle from 370 to 620. The loosening depth reaches 1.4 m. The length, width and weight of the ripper are 2.51 m * 3.03 m * 5.35 tons.
Large ripper Komatsu D355
If necessary, openings, slopes and extensions are installed. Often the Komatsu D355 is equipped with wide tracks. This type of additional equipment improves maneuverability in marshy ground.
Advantages of a special vehicle
Among other similar machines, the bulldozer stands out with a number of advantages:
Advantages of Komatsu D355 - work in hard-to-reach places
- The strength of the lugs allows you to move effectively on any ground.
- Maneuverability makes it possible to work even in confined spaces.
- The cabin protects the driver from any adverse working conditions.
- The engine is equipped with a special cooling system. Thanks to it, complex work can be performed over a long period of time.
The bulldozer body has sun visors and rear view mirrors.
With their help, you can carry out activities in any weather and in any conditions.
So, the Komatsu D355 bulldozer has undoubted advantages. With its help you can carry out a wide range of construction work. The secret to the popularity of the equipment is its technical characteristics and set of useful functions.
Source: https://SpecNavigator.ru/buldozer/komatsu-d355.html
Komatsu D355 (Komatsu D355)
The Komatsu D355 bulldozer is a product of the Komatsu engineering company, specializing in the production of road and special equipment. All units and components of this model are manufactured at the enterprises of the Japanese manufacturer. Common to all Komatsu products are torque flow transmissions, controlled by a single joystick.
Komatsu D355 is considered one of the most popular models in the middle class. Relatively small dimensions allow the bulldozer to be used on roads, construction sites and in quarries. The scope of application of the Komatsu D355 is very extensive.
These bulldozers are used in earthworks (removal of soil, profiling embankments, construction of dams and dams, leveling surfaces and backfilling trenches), mining, repair and construction work, construction and moving large loads over short distances.
bulldozer Komatsu D355
The model reaches speeds of up to 13 km/h, which allows it to move a considerable distance independently.
In Russia, people learned about the Komatsu D355 back in Soviet times. In 1982, the debut batch of Japanese bulldozers was delivered to the USSR. In total, about 3,000 D355 models were sold to the CIS countries and Russia.
However, most of these bulldozers have remained operational to this day. This longevity is due to its reliable design and the use of exclusively proven solutions. The Komatsu D355 does not use electronic control systems. Maintainability is also a strong point of the Komatsu D355. No special devices are required for routine maintenance of the bulldozer.
The scope of application of the Komatsu D355 is significantly expanded through the use of additional equipment. The category of the installed blade is determined by the letters of the index: - E - hemispherical blade; - A - spherical blade with skew adjustment;
EX – rotary blade.
Komatsu D355 became especially famous in June 2004. Then the American Marvin Heemeyer, using a bulldozer of this model, lined with armor, rammed the building of the Mountain Park plant, which bought his land. The police and sheriff were unable to stop him.
A man driving a Komatsu D355 destroyed workshops, a bank building, removed the facades from the houses of city officials, and damaged the city hall and fire department building. The SWAT team had to be alerted. However, neither the scraper nor 200 bullet hits stopped the work of the bulldozer.
Specifications
- Komatsu D355 is equipped with a 400-horsepower SA6D155A engine.
- The fuel consumption of the model is 75-80 l/hour, and the fuel tank capacity is 750 liters. The design speed is 12.7 km/h.
- The bulldozer weighs 56.6 tons and has medium dimensions (length - 7375 mm, width - 4316 mm, height - 4125 mm).
- The specific ground pressure of this equipment is 0.89 kg/sq.m. cm. The minimum turning radius is 3900 mm.
Engine
Komatsu D355 received an SA6D155A (SA6D140E) motor of its own production with a power of 302-400 hp. The engine maintains high torque, which is especially important for bulldozing.
The unit complies with EPA standards, offering high efficiency and reliability. It is equipped with an automatic preheating system that regulates operating time based on the ambient temperature. This element greatly simplifies the preheating operation.
The Komatsu D355 uses motors with low noise levels. In addition, they have a special radiator guard that removes sound from the engine. For the same purpose, side covers are mounted on the unit.
The bulldozer engines are equipped with a direct injection system, which has a positive effect on the efficiency of the power transmission. The Komatsu D355 itself has a modular design, which makes it easier to install and remove the mechanisms and components that make it up. This reduces equipment downtime.
Device
The popularity and reliability of the Komatsu D355 was a consequence of the use of a powerful chassis design and an improved hydraulic system in this model. The latter operates from a gear-type pump and has a 100-liter oil tank and control spool valves.
The high-tech undercarriage, thanks to the K-shaped design of the roller bogies, maintains constant contact between the roller and the track link, providing increased dozer stability and efficient transmission of traction force.
Komatsu D355 is equipped with a TORQFLOW transmission with 4 reverse and forward speeds. It consists of a gearbox, torque converter, forced lubrication system and multi-plate clutch. The steering system includes foot brakes and a wet clutch.
The Komatsu D355 is typically equipped with a 4,315 m wide adjustable straight blade. It is controlled via a hydraulic drive equipped with a skewing control cylinder and two lifting cylinders.
The steel cabin of the bulldozer deserves special attention. This element in Komatsu D355 has double glazing, a fan and a heater. The possibility of night work is provided by 4 powerful headlights. The cabin itself is reliably protected from overturning and deformation. The noise level in it is extremely low.
The main functions of the Komatsu D355 are controlled using joysticks. The right one allows you to control the blade and perform various work, the left one is responsible for maneuvering the bulldozer.
This model is equipped with a huge variety of replaceable equipment: openings, slopes, rippers and extenders. Also, the Komatsu D355 is additionally equipped with tracks that have an increased width, which allows it to feel confident on light and marshy soils.
Price
A used Komatsu D355 bulldozer (2000-2005) can be purchased for 3-3.5 million rubles.
Analogues
Analogues of the Komatsu D355 include bulldozers Shantui SD42 and T-35. They have similar technical parameters and perform the same functions.
