Spare parts for Komatsu heavy equipment
Our company offers spare parts for all the heavy eqipments of Komatsu, both original and aftermarket. Through a global network of distributors and partners, we can offer the lowest prices for spare parts delivery to your location.
Komatsu was founded in 1917 when Takeuchi Mining Industry has formed a company Komatsu Iron Works to manufacture heavy tools and mining equipment for internal use. The company Komatsu Iron Works separated from Takeuchi in 1921 and became known as Komatsu Limited. Three years later, the company built its first 450-ton forming press. In 1931, Komatsu company has created Japan's first crawler-type tractor for use on farms.
Today, Komatsu is the second world producer (after Caterpillar) earthmoving equipment, which consists of the construction and mining equipment, logging equipment, compact construction and industrial equipment. The product line includes heavy machinery such as hydraulic excavators, wheel loaders, crawler dozers, loaders, diesel engines, feller bunchers and off-road trucks. The company has production facilities in Asia, Japan, Europe and America. The company Komatsu Limited - part of the consolidated companies along with 182 other companies of the Komatsu Group.
To ensure the smooth and efficient operation of all the Komatsu parts have to be in top condition. Small problem with the technology will only get worse if you do not replace the respective parts, so contact us today for a free consultation on the online order of spare parts Komatsu and their duplicates.
Komatsu Hydraulic cylinder - volumetric hydraulic motor of reciprocating motion. The principle of operation of hydraulic cylinders is largely similar to the principle of the action of pneumatic cylinders. The moving part of the Komatsu hydraulic cylinder, which may be a rod, a plunger or the cylinder body itself, performs reciprocating motion. The main parameters that characterize all Komatsu hydraulic cylinders are the internal diameter, stroke length, rod diameter and nominal working fluid pressure. Komatsu Hydraulic cylinders come in several types: piston, telescopic, plunger, two-sided and one-way. According to the type of attachment, Komatsu hydraulic cylinders are divided into models with hinged fastening and rigid fastening. Komatsu single-acting hydraulic cylinder makes effort on the movable rod, which is directed only to one side (the working stroke of the cylinder). In the opposite direction, the movable link simply moves back under the action of gravity or a return
The Komatsu hydraulic system works as follows: The diesel engine rotates the shaft of the Komatsu hydraulic pump, which converts mechanical energy into energy hydraulic. The hydraulic fluid is piped into the Komatsu hydraulic pump and the Komatsu hydraulic cylinders through the Komatsu control valve system and converted there into mechanical energy of rotation or reciprocating motion. After performing the work, the hydraulic fluid returns to the hydraulic oil tank and enters the Komatsu hydraulic pump. The cycle of work is repeated. Exist two types of heavy equipment Hydraulic systems: A volumetric hydraulic system for its operation uses hydraulic motors and hydraulic pumps operating under high pressure up to 350 MPa. This system uses the principle of alternately filling the working chambers of the pump and the hydraulic motor with a hydraulic fluid and displacing it from there under high pressure. The speed of movement of the working fluid in such a system is small. The
When hydraulic systems are in operation, it becomes necessary to change the flow direction of the working fluid in its individual sections in order to change the direction of movement of the machine's actuators; it is required to provide the necessary sequence of activation of these mechanisms, to discharge the Komatsu pump and the hydraulic system from pressure, and so on. These and some other functions are performed by a special hydraulic device - the hydraulic Komatsu control valve. In the manufacture of Komatsu hydraulic control valves, steel castings, modified cast iron, high and low carbon steel grades, and bronze are used as structural materials. To protect individual elements of the Cat control valves from abrasive wear, sliding surfaces are cemented, nitrided and so on. The dimensions and mass of the Komatsu control valve depend on the flow rate of the liquid through which the dimensions of the unit increase. Thanks to the hydraulic system, the Komatsu machine
The Komatsu top roller is part of the moving part of the Komatsu track. Its purpose is to ensure minimum sagging of the upper part of the Komatsu track. Komatsu top rollers are made of steel and are used to support the upper section of the track in the track chassis, which includes several supporting Komatsu top rollers. They are located on the carrier, respectively, are installed on both sides, between the Komatsu drive and return wheels. The Komatsu top roller for supporting the tracks and chassis includes a bearing block with a roller. This mechanism, which has the ability to rotate, connects to the suspension unit suspension Komatsu undercarriage. The Komatsu top roller (Komatsu roller, Komatsu upper roller) is a Komatsu track element designed to support the upper part of the Komatsu track and to facilitate tension that reduces sagging. The use of a lot support rollers reduces the force necessary for pulling the track. Also, Komatsu rollers prevent Komatsu strikes on the frame a
Komatsu Bottom Roller is a crawler drive element that is a movable support for a Komatsu equipment (a tractor, bulldozer, excavator, etc.) that use Komatsu track chains. The part is to be installed with Komatsu bearings on the axles to the suspension of the running gear. Komatsu bottom rollers are mounted on bearings on axles that are connected to the body through a suspension. In order to mitigate impacts on the Komatsu during the movement in a rough terrain, the Komatsu rollers are usually made rubberized. It can also be made of composite materials. Komatsu bottom rollers have an internal design based on a coil or cylindrical roller bearings. Thick-walled outer ring allows to withstand high radial loads. Types of Komatsu Bottom Rollers: - Rubberized; - Not rubberized; - Rollers with internal cushioning. Komatsu Bottom roller supports the following functions: - Improvement of the rotating Komatsu track chain; - Reduction of noise generated between the Komatsu t
Komatsu track shoe - an integral part of the crawler chain Komatsu construction machines on equipment such as excavators, lifting machines, bulldozers, tractors and more. Designed to reduce the specific pressure of the weight of the base machine on the surface, which ensures patency on weak soils. To work equipped with rubber Komatsu tracks in urban areas, reducing noise and damage cover (asphalt, concrete and so on). For work in wetland conditions, arched track shoes are used. The Komatsu shoe track is one of the components of the Komatsu track. Komatsu shoes tracks are cast or forged units of wear-resistant steel, having on the outer surface of the lugs on the inner surface - the guide ridges, and apertures which include the teeth of the drive wheels, and lugs, which includes connecting pins pivotally connecting the tracks with each other. According to the constructive implementation of the Komatsu links, there are composite and integral castings. At present, several dozen type
The Komatsu track chain is an important part of the Komatsu track, it consists of movable elements that are connected together by means of fingers and bushings. It is this part that comes into contact with the ground surface during operation and exerts pressure on it. Using a crawler chain allows you to reduce pressure on the soil, which increases the throughput of Komatsu Heavy Equipment. The Komatsu tracks consist of bushes into which the fingers are placed, so joints are formed, allowing the chains to fit tightly the guide and the driving wheel. Like any other equipment, the Komatsu equipment, over time, requires replacement of worn out Komatsu parts. If you need to replace spare parts like Komatsu track chains, you should pay attention to such moments: the length of the crawler chain and the diameter. The Komatsu track chain can be mounted on motor grader, tractor, bulldozer and excavator Komatsu. Such products are characterized by a long operating term, as well as a high
Rotation of the working equipment of equipment to the place of unloading the bucket and a reverse rotation to the place of dripping are carried out by turning the turntable or the whole platform (for full-cycle Komatsu excavators). The rotation takes approximately 60-70% of the working cycle time and significantly affects its overall duration. The hydrostatic Komatsu Swing Motor just performs the function of turning in the horizontal plane of the working equipment relative to the running gear of the Komatsu equipment. The Swing Komatsu Motor consists of a sturdy steel casing, in which several pairs of Novikov gearing gears are compactly arranged, allowing the transfer of loads significantly exceeding the permissible values for involuntary engagement. On the low-speed shaft, on the splines, the output gear is attached, which is included in the open gearing with a gear ring of the turntable of the Komatsu Heavy Equipment. A large cogwheel is mounted on the fixed part of the Ko
The Komatsu Travel Motor is a design made up of gears and other operating elements that are driven by a gear train. The simplest Komatsu Travel Motor consists of a carrier. It is designed to fix the satellites relative to each other so that they move together. For proper operation of the Komatsu Travel Motor, it is necessary that one of the constituent parts of it is rigidly fixed to the casing. In the Komatsu Travel Motor, which is equipped with a carrier, the static part is exactly it. In addition, the crown or solar gear may be rigidly fixed. In the event that none of the parts of this unit is fixed, it is possible to separate one movement into several, or merge the two into one. Due to this design, the drive and driven shafts of the Komatsu moving in one direction. Serves the Komatsu Travel Motor to ensure a lower gear and at the same time increase the torque. To ensure the operation of this mechanism, the rotating shaft of the Komatsu joins its driven element. Lubri
The Komatsu Final Drive is a design made up of gears and other operating elements that are driven by a gear train. The simplest Komatsu Final Drive consists of a carrier. It is designed to fix the satellites relative to each other so that they move together. For proper operation of the Komatsu Final Drive, it is necessary that one of the constituent parts of it is rigidly fixed to the casing. In the Komatsu Final Drive, which is equipped with a carrier, the static part is exactly it. In addition, the crown or solar gear may be rigidly fixed. In the event that none of the parts of this unit is fixed, it is possible to separate one movement into several, or merge the two into one. Due to this design, the drive and driven shafts of the Komatsu moving in one direction. Serves the Komatsu Final Drive to ensure a lower gear and at the same time increase the torque. To ensure the operation of this mechanism, the rotating shaft of the Komatsu joins its driven element. Lubricatio
Komatsu Sensors have a huge functional load. They are responsible for the serviceability and correct operation of the power unit, as well as provide convenience and performance of the work on the Komatsu heavy equipment, as well as the safety of the operator of the equipment during direct movement or work. Sensors and devices that perform diagnostics of all mechanisms, aggregates and systems of Komatsu heavy equipment, are necessary for the timely warning of the operator of possible malfunctions. Data from the Komatsu sensors monitor the temperature, pressure, position of the parts, fluid levels, and the use of other equipment nodes or devices. Each Komatsu sensor is responsible for its indicator or parameter. The number of sensors in each, even the smallest Komatsu machine, is extremely large. The variety of functionality of Komatsu sensors is enormous, as is the importance of each of them in the performance of Komatsu technology in general. Only with us you will find and
As the name suggests, a Komatsu starter for heavy equipment is used to start an internal combustion engine. To do this, it provides a primary rotation of the crankshaft with the required frequency. The starter is an integral part of the electrical system of any modern Komatsu equipment. Structurally it is a four-pole DC motor, powered by a Komatsu battery. The Komatsu engine generates the energy necessary for the movement of the Komatsu equipment, due to the speed of the Komatsu crankshaft. All electrical equipment works from the same energy. In a stationary state, the engine is not capable of delivering either torque or electric energy. In this regard, it is necessary to "untwist" it with a special electric motor - a Komatsu starter motor, and an external power source - a Komatsu battery. On motors with diesel power system, as well as on high-power engines, a Komatsu starter motor with a gearbox is installed. The planetary gearbox, consisting of several gears, is mount
Electrical equipment of any Komatsu equipment includes an alternator Komatsu or AC Komatsu generator - a device that converts the mechanical energy received from a Komatsu engine into an electrical one. Together with a voltage regulator, it is called an alternator set. Komatsu alternators are installed on modern Komatsu equipment. They meet the requirements to the greatest degree. Requirements for the Komatsu alternator: - the output parameters of the Komatsu alternator must be such that in any mode of motion of the machinery there is no progressive discharge of the Komatsu battery; - The voltage in the onboard network of equipment powered by the Komatsu alternator must be stable over a wide range of speed and load variations. The latter requirement is caused by the fact that the Komatsu rechargeable battery is very sensitive to the degree of voltage stability. Too low voltage causes a low battery and, as a consequence, difficulties with starting the engine, too high voltag
To convert various types of energy into electrical, special devices are used. One of the simplest mechanisms is the DC Komatsu generator. The DC Komatsu generator is a device that converts mechanical energy into electrical energy for further use in an external circuit. The source of mechanical energy in this case can serve as any mechanical effort: the rotation of a special handle, the Komatsu engine and so on. There are such types of DC Komatsu generators: self-excitation inclusion and working on the principle of independent inclusion. The methods of excitation depend on the type of power supply of the device. The self-excited Komatsu generator works from external sources, it can be a rechargeable battery. Unlike Komatsu alternators (or AC Komatsu generators), devices with a constant type of electricity need an uninterruptible power supply that constantly directs the DC current to the armature winding. Because of this, the field of application of such devices is quite narrowl
Electric Komatsu battery - a chemical source of current, a source of electro-driving force of reusable action. The main specificity is the reversibility of internal chemical processes. That provides its multiple cyclic use (through charge-discharge) for the accumulation of energy and autonomous power supply of various electrical devices and equipment, as well as to provide backup sources of energy in vehicles and Komatsu heavy equipment. The most common now are: 1. Lead Acid is the most common type of battery used in Komatsu's heavy equipment, or as an uninterruptible power supply in emergencies. 2. Nickel-cadmium (NiCd) - the most widely used as a replacement for a standard galvanic cell, also used in Komatsu electric forklifts and other Komatsu electrical equipment. 3. Nickel-metal hydride (NiMH) - also used as a replacement for a standard galvanic cell, in electric vehicles. Please note that Komatsu acid batteries are not allowed for air travel. We sheep it
Belt transmission is the transmission of mechanical energy by means of a flexible element - the Komatsu drive belt, due to frictional forces or engagement forces (Komatsu timing belts). It can have both a constant and variable gear ratio, whose shafts can be with parallel and intersecting axes. The Komatsu belt performs two tasks: it operates a gas distribution system and aggregates of additional equipment such as a Komatsu generator, a Komatsu air conditioner compressor and so on. There is a huge variety of drive belts: - Komatsu V-belt - Toothed Komatsu belt Also distinguish single-row belts and multi-row Komatsu belts. All of the above belts have one task - to drive the Komatsu pulley of additional equipment or to drive other systems of equipment. Komatsu pulleys transmit torque using Komatsu belts. Original and replacement or aftermarket Komatsu belts online. 00840326 - BELT A/ 6735-61-3421 - V-BELT 00840405 -
The plunger and piston Komatsu water pump are widely distributed, as their work is effective at high final pressure. The purpose of the Komatsu water pump in the cooling system is to pump the cooling liquid through the cooling system. The main task is to force the coolant into the cooling Komatsu radiator, as a result of the operation of the Komatsu thermostat and the start of a large circle of engine cooling. How does the Komatsu piston water pump work? The principle of operation of the Komatsu piston water pump is to pump the liquid by suction. What does it mean? The piston creates a translational motion, through which the liquid enters the cavity of the lower part of the device from a special tube. When the piston does reverse movement, the valve on the pipeline closes and thereby prevents the fluid from flowing back. However, another valve opens on the discharge pipe. At the primary suction it was closed. These processes are repeated again and again, so that the fluid is c
The cooling system plays a very important role, since it prevents the engine from overheating. The most important element of the cooling system is the Komatsu radiator, which provides effective cooling of the liquid. The cooling system performs the following functions: - heat the air in the ventilation, heating and air conditioning system; - cool the oil in the lubrication system; - cool the exhaust gases in the exhaust gas recirculation system; - cool the air in the turbo system. Most of the modern technology is equipped with a water cooling system, among which the advantages are an effective uniform cooling. In addition, the water cooling system has a low noise level. Cooling system design: - Komatsu radiator; - Heater heat exchanger; - Oil radiator; - Expansion tank; - Thermostat; - Komatsu water pump; - Komatsu radiator fan; - Branch pipes; - Controls. The principle of the cooling system is as follows. Thanks to the liquid pump, th
Komatsu turbocharger is a technically sophisticated mechanism that uses the kinetic energy of the exhaust gases to increase the pressure inside the Komatsu intake system. Compressing, a mixture of fuel and air increases the mass of the fuel charge inside the Komatsu cylinders, which increases the caloric content and, consequently, the engine power. The essence of the Komatsu turbocharger is the strongest compression of air that enters the engine and enriches the fuel mixture, creating a high explosion power in the cylinder - this greatly improves the mass ratio of the Komatsu engine to its power. Based on this, it can be argued that an engine with a Komatsu turbocharger produces much more useful energy than the same unit without it. The operating speed of the Komatsu turbine can be about 250,000 - 280,000 rpm. For comparison, the speed of the internal combustion engine itself is 30 times less. And since the Komatsu turbocharger works by exhaust gases, the operating temperature of th
Air or fuel / air mixture enters the cylinders through the Komatsu Construction intake manifold. The main purpose of the intake manifold is to ensure an even distribution of air or working mixture between the cylinders. This directly affects the efficiency of the Komatsu engine. In addition, other nodes can be attached to the manifold. The principle of operation of the intake manifold of the Komatsu engine is quite simple: air or its mixture with fuel, getting inside through the inlet, is divided into several streams, according to the number of cylinders of the engine. Pistons, moving downwards, create a vacuum in the collector, which can reach large values. This partial vacuum is also used to neutralize crankcase gases. They pass through the engine crankcase ventilation system into the Komatsu intake manifold, mix with the fuel-air mixture or air and are burned in the cylinders. Until recently, the main material for the manufacture of the Komatsu intake manifold of was aluminum,