excavator undercarriage

Kyushan Machinery is excavator undercarriage manufacturers that mainly engaged in Komatsu excavator parts and dismantling parts: various types of original filter elements, engine oil, hydraulic oil, Komatsu mechanical structural parts, engine assembly and engine parts, hydraulic parts, electrical parts, chassis parts, etc. Boom, forearm, bucket, ripper, hydraulic cylinder, piston rod, connecting rod, swing frame, pin, bushing, idler, roller, track, chain link bolt, various high-pressure oil pipes, Hose, hydraulic pump, distribution valve, reducer, motor, final drive assembly, slewing mechanism assembly, engine assembly, four sets of engine, starter, generator, supercharger, air conditioner compressor, fuel injector, Fuel injection pump, oil pump, etc.

The function of the oil filter is to caterpillar filters out the sundries, gums and moisture in the oil, and deliver clean oil to each lubricating part. In order to reduce the frictional resistance between the relatively moving parts in the engine and reduce the wear of the parts, the oil is continuously transported to the friction surface of each moving part to form a lubricating oil film for lubrication. The engine oil itself contains a certain amount of gum, impurities, moisture and additives. At the same time, during the working process of the engine, the introduction of metal wear debris, the entry of debris in the air, and the generation of oil oxides make the debris in the oil gradually increase. If the oil directly enters the lubricating oil circuit without being filtered, the sundries contained in the oil will be brought into the friction surface of the moving pair, which will accelerate the wear of parts and reduce the service life of the engine.

Hitachi excavator filters product requirements 1. Strength requirements, production integrity requirements, withstand pressure difference, bear installation external force, bear pressure difference alternating load 2. Requirements for smoothness of oil passage and flow resistance characteristics 3. Resistant to a certain high temperature, compatible with the working medium 4. The fibers of the filter layer cannot be displaced and fallen off 5, to carry more dirt 6. Normal use in high altitude and cold areas 7. Fatigue resistance, fatigue strength under alternating flow 8. The cleanliness of the filter element itself must meet the standard We are top supplier of Donaldson filters in China, you can get lowest price of original Donaldson filters from us!

Kyushan is established in 2004 , we produce OEM mini excavator swing bearing replacement, slew drive, pinion, FH has passed ISO9001-2005, SGS, CAPE etc, FH also accept the service durability test, resist fatigue test, anti-corrosion test and anti-terrible temperature test, which is widely used for Construction machinery, port, AI and new energy industries.

We have 76 teeth and 80 teeth of swing bearing for excavator, 1.High Quality and Direct Factory Price. 2.Durable, excellent workmanship and Long Service Life. 3.We are always improving our design and patterns to confirm to the world market. 4.Please contact me,I will provide the best price and after-sales service for you. 5.We have the most complete Excavator parts type and model, I will tell you the details.

What are the differences between the friction-welded mini excavator track rollers and the traditional type of track roller? 1.Friction-welding mini excavator track rollers is better in the wear-resistance and has longer working lifetime. 2.Consumption of material For traditional track roller, the roller bodies are connected by the welding rod. For friction-welding mini excavator track rollers, the roller bodies are connected by the friction between roller bodies.Friction part of roller will be added more material to make sure roller is conformed to the standard size after friction-welding. 3.Interior parts For traditional track roller, the welding is done after two processes of fine machining, therefore the requirement to the size of interior parts is not that severe. For friction-welding track roller, after the welding, there is one more fine ma-chinning with concentric locating to make sure the conformity of inner sizes.And for which, the requirement to the size of interior parts is severe.Interior parts for friction-welding track roller are with higher standard. 4.Differences on the manufacturing processes

The track rollers of mini undercarriage parts is to distribute the energy and load of the excavator during work, and to prevent the track and the fuselage from derailing when the excavator is walking. Since most of the track rollers work in sand or harsh working environments, and bear a greater impact force than other components, they are prone to wear, breakage, oil leakage, etc. after a period of work. Therefore, the track rollers must have a very high bearing capacity, wear resistance and sealing. Kyushan load-bearing wheel adopts high-performance oil seal to ensure that the machine runs smoothly and has a stronger seal. With Kyushan's advanced welding and processing technology, the track rollers has a stronger bearing capacity and is more wear-resistant.

The komatsu excavator undercarriage parts carries the full weight of the excavator and is responsible for the driving function of the excavator. The main damage form is wear, which is concentrated in the following contact parts: the outer surface of the drive wheel teeth and the track pin sleeve: the guide wheel and the track link raceway surface of the track; the roller and the track track link raceway The surface of the carrier roller and the track link of the track; the contact surface of the track pin and the pin sleeve; the track shoe and the ground, etc.

The composition and function of the kobelco undercarriage parts assembly: 1. Support the upper weight of the entire excavator. 2. The power source and actuator for walking and steering. 3. Support the reaction force of the working device when excavating. The main components of kobelco undercarriage: 1. Lower frame body (welding parts), 2. Guide wheel, driving wheel, carrier wheel, roller, track 3. Bulldozer and oil cylinder. 4. Central rotary joint. 5. Slewing raceway ring (slewing bearing). 6. Travel reducer and motor.