Japanese equipment is rightfully considered advanced in many respects, and the technical characteristics of the Komatsu D65 bulldozer once again prove that the Japanese miracle of technology surpasses foreign counterparts in many functions. By the way, for the first time the whole world started talking about the company only 100 years ago, when a small plant appeared on the territory of Japan in the suburbs of Tokyo, which in a few decades will become the largest industrial giant in the special equipment industry. Today the enterprise employs about 33 thousand employees who produce not only the Komatsu D65E bulldozer, but also other industrial-grade special equipment.
Characteristics of the use of special equipment
Considering the technical characteristics of the Komatsu D 65 bulldozer, it can be noted that the equipment allows you to perform a fairly large front of earthmoving production tasks, regardless of the complexity and labor intensity of the task. The main industries where the equipment is used are the construction segment, quarrying, mining and processing and other areas. The technical characteristics of the Komatsu D 65 bulldozer allow you to perform the following types of work:
- Moving to ground distances.
- Loosening and milling of the soil.
- Planning and technological leveling works for production sites.
- Erection of earth embankments, as well as embankments of sand and other soil structures.
- Digging production trenches or foundation pits, followed by backfilling.
- Clearing any territories, areas from rubble and debris.
- Snow removal from roadways.
General technical characteristics of the bulldozer Komatsu D65E 12:
How a car motor works
Not the least important for the car is the installation of the propulsion system, on which a 6-cylinder four-stroke engine is installed, which belongs to the serial class SAA6D114E-3. For this group of engines, direct fuel injection is provided, which is provided by an additional direct cooling system. According to the main technical characteristics, the Komatsu D65EX 16 bulldozer consumes 180 g / kWh of fuel. The power unit complex has the following parameters for the controls of the Komatsu D65 bulldozer:
Features of working comfort for the driver
The cab of the machine has a reinforced version, which provides additional protection options for the operator of special equipment. The cabin interior is equipped with additional protection systems to prevent moisture and dust ingress. Additionally, protective screens are installed that reduce the noise level inside the cab, thus the operator practically does not feel the operation of the motors, which negatively affect the hearing.
For comfortable control, a joystick is installed inside the cab, and a special technological operator's workplace is also equipped. Convenient control in hot and cold seasons is provided by air conditioners, heating and ventilation systems, which have an innovative solution. Better visibility and visibility is ensured through the implementation of panoramic glazing inside the car.
General device and design
As the main frame for the bulldozer, a suspended frame made of special durable steel grades is used. For the frame used in the tracked vehicle, special metal structural elements and blanks with a dimensional cross-section are used. The undercarriage of the machine is equipped with a special tracked link of increased strength, which has self-lubricating characteristics, where up to 39 belt links with increased overall dimensions are provided. This factor allows the bulldozer to move comfortably and without problems on land plots that have a difficult geographic relief.
For the supports that are used in driving wheels, an automatic adjustment is provided, which ultimately guarantees a long service life of specialized equipment in various conditions of the machine's use. In addition, the supports reduce such negative factors as noise and vibration.
Positive and negative aspects of special equipment
Like any type of transport, the Japanese manufacturer's bulldozers have their negative and positive sides. So, the plus are:
- All parts and components of the machine have high technical parameters from a direct manufacturer.
- High power parameters compared to the same class of machines.
- Fuel consumption is one of the lowest.
- Excellent maneuverability, even in confined working conditions.
- Simplicity and ease of operation and maintenance.
- The special equipment meets the highest international requirements for environmental operation.
There are practically no drawbacks, but it is expressed only in the high cost of the car. If you are renting a car, the Japanese brand's bulldozer does an excellent job, while its cost pays for itself up to 100% in a record short period of time. An additional disadvantage is maintenance, which requires the use of expensive spare parts and lubricants. Otherwise, the Komatsu D 65 bulldozer has only positive aspects of performance.
Machine modifications
For all the time, the Japanese manufacturer did not make any modifications to the car, as he believed that this line could not have additional modification series. Along with this, the manufacturer introduced some variations of the current model:
- Komatsu D65 E Series
- Komatsu D65 EX Series. This series allows the use of a rotary blade. In general terms, the car does not differ from the basic model.
- Komatsu D65 A series. In this range, the blade can be adjusted according to the main parameters of the machine.
Summing up, it can be noted that the variations of special equipment differ only in the operational part of the blade, which is used for specific technological work.
Conclusion
As mentioned above, one of the disadvantages of a bulldozer is its price. In Russia, they know that the very high cost of special equipment completely covers all the costs associated with earthmoving work. According to statistics, Komatsu D 65 least of all requires maintenance and repairs, so the demand for a car remains quite high not only in Russia, but also in countries of far and near abroad. The manufacturer makes technical changes to the controls almost every year, equipping them with electronics and other "smart" fillings that allow the bulldozer operator to easily manage the most sophisticated special equipment of our time.
The Komatsu D65 is the core line of Komatsu brand tracked dozers. The priority of the series is to simplify the control mechanism and the number of repetitive operations while improving the comfort of work. Individual characteristics of the bulldozer can be identified by the name. So, the number and index indicated after "D65" indicate the type of bulldozer equipment:
- "E" - a version with a fixed, adjustable blade of a straight or hemispherical type;
- "EX" - variation with a rotary adjustable blade;
- "A" - modification with an adjustable hemispherical or spherical blade.
The most common models in the series are the Komatsu D65EX and Komatsu D65E bulldozers (the former is a more modern product).
Komatsu D65EX is used for operations in mining, building construction, mining and road construction. The equipment confidently copes with clearing, production of trenches, pits and excavations of various types, cleaning of territories and clearing sites. The machine shows high efficiency in operations with soil, gravel, coal and other materials (development and movement over short distances).
The model is characterized by versatility, high performance, reliability and is suitable for operation in regions with temperatures down to -50 degrees.
Modifications and features
The Komatsu D65E series includes several product lines. In addition to the D65EX models, this includes the D65WX and D65PX versions.
The D65EX line includes the D65EX-12, D65EX-15, D65EX-16 and D65EX-18 versions. Its discoverer is the D65EX-12 model, which has been modernized several times. The latest and most advanced version is the D65EX-18 bulldozer.
Features of Komatsu D65EX:
- increased track length, which increases stability and allows the vehicle to overcome various obstacles and high inclines;
- the Sigma blade is included as standard. The unique shape, created specifically for work with soil, allows you to significantly increase the productivity of the equipment. PAT blades with variable tilt and swivel angle are optionally available;
- modern transmission providing increased efficiency and minimum fuel consumption. The checkpoint has a transformer blocking clutch, which increases the technical capabilities of the tractor;
- Komtrax system;
- hydrostatic steering;
- luxury cab and simple controls.
The main disadvantage of Komatsu is considered to be its high cost, which is fully compensated for by its high reliability and performance.
Specifications
Dimensions:
- length - 5490 mm;
- width - 3410 mm;
- height - 3155 mm;
- minimum turning radius - 1900 mm;
- track width (front and rear wheels) - 1880 mm;
- track width - 510 mm.
The bulldozer weighs 19,500 kg. The specific ground pressure is 55.2 kPa. The technique is capable of moving forward at a speed of 11.2 km / h, backward - 13.4 km / h.
Basic equipment characteristics:
Bulldozer blade "SIGMA":
- width - 3410 mm;
- height - 1425 mm;
- capacity - 5.61 cubic meters;
- maximum depth - 505 mm;
- maximum lifting height - 1130 mm;
- skew angle adjustment range - 870 mm.
Engine
For the bulldozer, a self-developed Komatsu SAA6D114E-3 diesel unit with electronic control is provided. The engine design includes a charge air cooling system, a liquid cooling system, a turbocharger and a fuel injection mechanism. The motor is mounted on the frame using rubber cushions, which significantly reduces vibration and noise during operation. The radiator fan speed is controlled electrically.
The SAA6D114E-3 is a combination of economy and environmental friendliness and meets Stage 3A and Tier 3 requirements. The engine has a minimal impact on the environment, allowing the dozer to be used in urban areas. The average fuel consumption of the power plant is 20.3 l / h. Depending on the operating mode, the fuel consumption may vary:
- light - 7-15 l / hour;
- average - 15-23 l / h;
- heavy - 23-31 l / h.
Characteristics of the SAA6D114E-3 unit:
- working volume - 8.27 liters;
- rated power - 115 (207) kW (hp);
- rated speed - 1950 rpm;
- maximum torque - 800 Nm;
- number of cylinders - 6;
- cylinder diameter - 114 mm;
- fuel tank capacity - 415 liters.
Device and features of operation
The long service life and high performance of Komatsu D65EX are explained by the fact that the main elements of the bulldozer are designed and manufactured by the manufacturer. Hydraulic and electrical systems, motor and large components complement each other optimally to increase efficiency.
The framework of the technique is distinguished by its rigidity and strength. The stress in the frame nodes is reduced, which increases the service life of the machine. The oversized crawler frame and pivot pin contribute to the reliability of the bulldozer.
The undercarriage is the strong point of the Komatsu D65EX. Proprietary parallel links and special rotating bushings with increased wear resistance ensure element reliability. Compared to the standard undercarriage, the service life of a similar unit in the Komatsu D65EX is 2 times longer. Another feature is the drive wheel support, complemented by automatic adjustment, which guarantees a constant and stable wheel load. The element helps to reduce backlash, vibration and noise. The D65EX series features an extended track length. This makes the bulldozer more stable and allows you to climb significant gradients and travel on inclines.
The machine is equipped with wet disc brakes that do not require special adjustments.
The bulldozer is equipped with a modern TORQFLOW transmission, which is the hallmark of Komatsu equipment. The assembly is a 3-element liquid-cooled torque converter and a planetary gearbox (3F and 3R ranges) complete with a torque converter lock-up clutch and hydraulic actuator. The vehicle also has a lowered third gear.
The hydraulic system consists of a powerful piston type hydraulic pump with a capacity of 248 l / min and slide valves installed next to the hydraulic tank. The function of seals in the hydraulic system is played by flat O-rings, which prevent the flow of hoses with hydraulic fluid. The tubing of the tilt cylinder of the basic implement is located in the body of the push bar, which ensures maximum safety and eliminates the possibility of damage.
In addition to standard tools (dozer blade and single-shank ripper), the bulldozer can be equipped with a non-swivel and swivel blade with adjustable tilt, straight blade, hemispherical blade, straight blade with manual angle adjustment, multi-shank parallelogram ripper and Komatsu rippers.
The basic bulldozer cab has a 3D-modeled ROPS safety system. The cab is characterized by increased tightness and strength, and the operator in the cabin feels great in all conditions. Dust and noise from the work platform do not penetrate inside, and the temperature is always kept at the same level. The special design with no external grille or uprights improves the visibility of the work area. By installing a damper at the cab's anchorage points, dynamic influences are noticeably reduced. Even work on uneven surfaces results in minimal vibration, the spring mechanism perfectly absorbs vibration.
To control the parameters of the machine, a large LCD screen is installed in the cabin, where information about the condition of the bulldozer is displayed in different languages. Such informational content ensures maximum accuracy and safety of processes. The interior also includes switches that can be operated intuitively.
Control of the main processes is carried out by means of a joystick (speed and direction, operating mode, control of the working body, gearbox indicators). Hydrostatic steering provides easy turns.
Komatsu D65EX requires regular maintenance and inspection. Convenient access points make this process easy. When a malfunction occurs, information is sent to the screen located in the operator's cabin. A lamp and a buzzer are used to attract the driver's attention. The engine compartment is accessed by large doors that open using gas-filled stops. The block design of the power train allows you to replace the elements in the shortest possible time.
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Price
The cost of the new Komatsu D65EX starts from 11-13 million rubles (depending on the configuration and point of sale). There are a lot of used models on the Russian market. The price here is influenced by the operating time, condition, additional equipment and the year of manufacture. Cost of used Komatsu D65EX bulldozers:
- 1998-2000 - 3-4.9 million rubles;
- 2007-2009 - 7-9.1 million rubles;
- 2014-2016 - 10-12.1 million rubles.
The company "Naftakom Group" renders services for renting a modern, universal, high-performance bulldozer Komatsu D65EX-15.
This type of special equipment is intended for use in the mining industry (in the extraction of minerals), for road construction works, as well as in the construction of any objects, buildings and structures. The Komatsu D65EX bulldozer easily copes with the following types of work:
- planning, clearing, cleaning of territories;
- the production of excavations in the ground of any volume and nature - trenches, pits, ditches;
- creation of embankments (dams, dams);
- construction of earthen cloths for automobiles and railways;
- demolition of buildings.
Komatsu specialized construction equipment is characterized by such qualities as reliability, versatility, productivity and the ability to work in difficult climatic conditions (at ambient temperatures down to -50 degrees).
Renting a bulldozer from a well-known Japanese company will allow you to solve all the production problems facing the tenant.
Bulldozer Komatsu D65EX - a powerful machine from the best manufacturer
The Komatsu D65 bulldozer demonstrates high efficiency when working with soil, coal, crushed stone, gravel and other materials. Komatsu D65 is capable of excavating all types of soil, transporting it, creating embankments when working on a construction site, in mining, in mines or quarries.
Bulldozer specifications:
- weight in working order - 20.31 t;
- engine power - 142 kW;
- speed - 10.6 km / h;
- front blade-blade width - 3.97 m.
The main advantages of the Komatsu D65 bulldozer:
- To reduce fuel consumption, the developers have designed the installation of a modern gearbox with increased efficiency.
- A hemispherical blade with variable tilt angle and an automatic transmission with a hydraulic transformer lock-up clutch gave the machine high performance and reduced fuel consumption.
- The steering of the bulldozer is easily accomplished by installing a hydrostatic system.
- The machine is equipped with a modern Komtrax system, a fan for lowering the temperature of the motor with a hydraulic drive and the possibility of reversing.
- Convenient and intuitive control system.
- Reduced noise and vibration of the power plant.
- Minimal environmental impact of exhaust gases and compliance with international standards, making this model suitable for urban use.
The Komatsu D65 bulldozer is equipped with an improved undercarriage. It has parallel links, which are a proprietary Japanese manufacturer, and rotating bushings, which are characterized by increased wear resistance, regardless of operating conditions. Also, this model of the bulldozer has a turbocharged engine of increased power and a three-shank ripper.
Advantages of renting special equipment in Naftakom Group
Having been in the specialized equipment rental market for many years, our company provides the most profitable and attractive conditions for hiring Komatsu D65. We can offer our clients:
- the optimal cost of renting a bulldozer;
- almost any rental period (from several hours);
- fast delivery of rented special equipment to the customer's site;
- providing the services of an experienced bulldozer operator;
- individual approach when concluding a lease agreement;
- the ability to use a rented bulldozer throughout Russia.
If you have decided to rent a Komatsu D65, contact our qualified managers who will answer all additional questions and help you place an order. Contacts for communication are indicated on our website.
The Komatsu Heavy Bulldozer with Ripper is effective in loosening and moving soil. Its qualities are most widely disclosed in the mining industry and at processing plants.
Design features
Constant improvement by the team of designers of units and assemblies of manufactured equipment is the reason for such popularity of Komatsu D65 bulldozers. Among the latest improvements that increase its reliability and comfort, we note:- Undercarriage for stability of the machine when working on sloping ground. Achieved by reducing the location of the drive and installing wider tracks of increased length;
- Fan, cooling the engine radiator with a unique hydrostatic switching drive, working in automatic mode. Rapid adjustment of the coolant temperature, saves fuel and extends the service life of the power unit. Has a reversing mode used to clean the radiator from dirt;
- The control amplification system of the Komatsu 65 bulldozer is based on the use of hydrostatics. Allows you to apply the same force to the steering wheel to turn and control the machine on soils of different densities and in different operating conditions;
- Completion with new dumps that exceed the volume of dumps of previous generations.
Operator's cab
In a sealed, with a double noise-insulating layer, the operator's cab provides conditions for safe and full-fledged work. Air filters are installed. A separate compressor blows air into the cabin, creating an overpressure in it to block the penetration of dust from outside.
The Komatsu bulldozer cab is installed on damping supports, which with great efficiency smooth out the inevitable vibration and shock loads. The hexagonal shape allows you to observe the workflow without distorting objects arising from observation through the glass of a conventional quadrangular cab. Other interesting aspects of the cockpit, which received the project name "Space Cab ™", are:
- High performance air conditioner;
- A control system in which the functions of changing the movement and control of the blade are implemented by one lever, such as a joystick;
- For the operator's convenience, the chairs have height-adjustable armrests;
- Heated glass.
Power unit
The engine installed on the Komatsu D65 bulldozer uses a microprocessor-based control system for complete fuel burnout in the combustion chamber. The presence of an on-board system that monitors the optimization of the processes of ignition and combustion of fuel made it possible to increase the power output. Reduce the consumption of diesel fuel and the release of solid particles into the atmosphere. The engine is marked SAA6D114E-3. It is a turbocharged diesel. Develops a power of 210 hp. Working volume 8250 cm³. Single row design with six combustion chambers. The piston stroke is 135 mm. Diameter 114 mm.The Komatsu TORQFLOW gearbox fitted to the Komatsu 65 dozer is equipped with a locking lever and a switch to prevent the machine from rolling away accidentally when left on uneven ground. Three gears provide six speeds: three forward and three reverse.
Travel speed
Broadcast | Forward speed | Reverse speed |
III (km / h) |
Chassis
Lowering the center of the drive on the Komatsu D65E, combined with the use of increased link heights on the tracks, improves ride performance. Another positive aspect that makes work easier is the ability to fully see the blade knife for the operator. Much attention has been paid to the fight against vibration. Vibration characteristics are reduced due to:
- two upper rollers installed on each side and preventing the tracks from jumping in the vertical direction when driving;
- Seven double-sided track rollers keep the chassis in an optimal position, reducing wear.
The Komatsu D65E bulldozers are equipped with self-lubricating tracks with a standard length and height of 65 mm lugs with a total support area of 32,940 cm³. The shoe width is 620 mm. The toothed-type drive wheels are segmented. The segments are bolted together. This innovation saves time spent on removing and replacing it in case of failure in working conditions. This design allows for the most efficient use of equipment on normal and hard ground.
The undercarriage on the Komatsu D65PX bulldozer is designed to operate in soft, sagging soils. Its guide wheels are slightly shifted forward to increase the contact area, which is now 60,120 cm³. The number of road wheels has reached 16 pieces. Shoe width increased to 920 mm.
The Komatsu D65E bulldozer is designed for use in quarries, at large construction sites, it is equipped with a caterpillar track and has a high lifting capacity. The technique is also widely used in construction at the zero cycle of work, economic activity and in industry, where it can perform various operations related to the technological process.
The machine has such qualities as ease of operation, predictability, productivity and the ability to carry out large volumes of work. The bulldozer is equipped with powerful power units and has several configurations. Special equipment is ready to work in any climate and in any weather.
Navigation
The main elements of the Komatsu D65E-12 bulldozer are manufactured in accordance with the latest developments in the field of mechanical engineering. The use of composite materials eliminates the risk of corrosion of elements, increases their wear resistance and durability. Due to the possibility of choosing the necessary units in the kit, each consumer receives equipment oriented to his needs. For example, when installing a ripper, the operator's cab is equipped with additional controls oriented to this working element.
Features and Benefits
The Komatsu D65E-12 bulldozer belongs to the 10-12 class in terms of tractive effort. Its minimum weight is 16 tons (depending on the configuration), and the maximum speed is 12 km / h.
The technique can be used not only in the production of earthworks. Also, consumers note the high efficiency of using the bulldozer in the repair of the roadbed, the arrangement of canals, the construction of construction facilities, mining, and landscaping of sites. Thus, the machine is versatile and productive. To expand the scope of activity, additional bodies are installed: openers, slopes, rippers, wideners, etc.
In construction, the bulldozer is capable not only of performing a zero cycle of work, but also planning of territories, their improvement after the completion of the construction of the facility. High efficiency of work is achieved when using special equipment in bulk materials warehouses. When the ripper is installed, the machine can excavate the soil. In road construction, a bulldozer is used to prepare the base for laying a new pavement, right-of-way (clearing trees, bushes, etc.).
Specifications and dimensions
The high technical characteristics of the Komatsu D65E are due to the installation of powerful power equipment. The weight of the vehicle also varies depending on the configuration. Its minimum weight is 15.6 tons, the maximum is 19.8 tons. In the latter case, the specific pressure on the base is 56 kPa or 0.57 kgf / sq.cm.
Another technical characteristic of the Komatsu D65E-12 bulldozer is the capacity of the working body (blade) - from 3.55 cu. m up to 5.61 cubic meters. m. Machine dimensions: 6.66 mx 3.46 mx 3.165 m. Track width - 1.88 m, base length - 2.675 m.
Engine
This bulldozer is the most economical in terms of fuel consumption in its class due to the installation of a 135 kW four-stroke unit with low consumption. Model 6D125E runs on diesel fuel, is equipped with a direct fuel mixture supply system and a liquid cooling system (water). The speed of such an engine is 1950 rpm, the maximum torque is 800 Nm. The unit has a forced lubrication system, low noise level, meets international standards for exhaust quality. These features allow the use of equipment in urban areas.
Fuel consumption Komatsu D65E is 180 g / kW per hour of operation... The fuel tank is designed for 406 liters of fuel.
Device
To ensure the reliability and durability of the main systems of the Komatsu D65E-12 bulldozer, units of our own production are installed. This applies to the power plant, transmission and hydraulic drives.
The track support structure, swing axle and flat bottom provide excellent maneuverability on any type of ground, including wetlands. This has a beneficial effect on the absence of adhesion of dirt on the tracks. The power train has a block structure, which ensures a high speed of re-positioning of elements.
The straight frame of the skeleton is made of steel of increased thickness, which makes it possible to reduce the number of separate structures and increase the reliability of the equipment. The installation of an oversized track frame and box-type backbeam increased the strength of these elements to a maximum.
Transmission
The Komatsu D65E-12 is equipped with a proprietary TORQFLOW transmission. It is a three-element hydraulic transformer equipped with a forced liquid cooling system, operating in one stage and one phase. The gearbox is made in the form of a planetary element, driven by a hydraulic drive. The clutch is installed multi-plate. Thanks to this design, the equipment moves smoothly and without jerks, and there are no shortcomings of the mechanical box. To prevent overheating of the gearbox, a forced lubrication system is provided. It also increases the system's lifespan. With its help, you can move in three forward and three reverse gears, which is provided by joystick control. Work safety is due to the installation of locking handles.
The final drive is a complex of spur and planetary gears, which exclude the effect of dynamic loads on the power train. Based on the wishes of the operators, the structure of the cogwheel was changed, now it consists of individual sectors that can be easily dismantled and replaced with new ones. In this case, it is not necessary to transport the machine to a service site, the operator can make a replacement himself.
The joystick control is highly precise and smooth. This is due to the use of the advantages of the braking and clutch hydraulic system. With a significant size of special equipment, it has a small turning radius - 3.2 m.
Chassis
"Walking" of the Komatsu D65E bulldozer consists of two tracks, track and carrier rollers, a crawler track and a suspension. The latter is swinging, a beam for the balance and the rolling axis is mounted on it. Each track is mounted on two track rollers installed on different sides and seven support rollers, it has 39 links in its composition. Due to the modern system of connecting the links with each other, the risk of foreign elements entering the tape and dirt sticking is eliminated.
In addition, the flat bottom frame also does not adhere to dirt, due to the special design. As a braking system, multi-disc brakes are used, which are permanently located in the oil. This allows you to increase the duration of operation, reduce their wear and tear, as well as to refuse service when using equipment and from adjusting the brake band.
Operator's cab
An ergonomic and comfortable operator's cab is installed on the Komatsu D65E-12 bulldozer. Intuitive controls allow you to operate the machinery intuitively. A wide viewing angle opens from the cab, which guarantees safe work.
The cab comes standard with a comfortable operator seat that can be adjusted to suit individual preferences. The air conditioning and ventilation system create the required microclimate in the cabin and exclude dust penetration, which reduces operator fatigue and his concentration in the working process. It is also favorably influenced by a reduced noise level and a decrease in dynamic influences during operation.
A more robust cab is optionally available for increased safety.
The control of the working body is carried out with ease. The force of pressing the joystick does not depend on the amount of material, the complexity of the work and the speed of movement. This is due to the installation of the CLSS system, which is responsible for the operation of the hydraulics and reduces the effect of dynamics on the operator.
