Spare parts

  All the performances of 35MnBH steel could meet the requirements of technical conditions through such measures as micro-alloying, establishing strict and reasonable production engineering as well as narrow control for composition of molten steel based on those of 35MnB. Mainly used in Excavator and Bulldozer undercarriage manufacturing, 35MnBH steel Requires high purity and uniformity of ingredients to reach good organizational structure, mechanical properties and good quality of the appearance. It’s chemical composition is as following. Chemical  Composition（%） Low Magnification C Si Mn P S Cr Ti Als Ni Cu Mo B General Loosen Center Porosity Center Segregation 0.38 0.24 1.24 0.017 0.002 0.21 0.042 0.031 0.01 0.04 0.01 0.0018 0/0 1.0/1.0 0/0 The main spare parts of undercarriage is track link, which is made of 40Mn2 steel or 35MnB steel and plays the role of connecting the track shoes and transmitting power. For the normal  Excavator track link , it's made of 40Mn2, but...

  Undercarriage parts   have a huge effect on working performance and walking performance of excavator. Maintenance is a key to walking speed of excavator. How to maintain your “undercarriage parts”? There are some tips as following. 1.  Carrier Roller  is above the track frame. The function is to carry and keep the track moving in a straight line. If Carrier Roller has a breakdown, Track Link will not work properly. Carrier Roller is added lubricating oil at once. If oil spills occur, you will have to replace this part. Therefore, you should keep the track frame clean. Don’t let the accumulation of dirt and gravel hamper its work. 2.  Front Idler  is in the front of the track frame. The function is to prop the track up and guide the track to wind correctly. Besides, Front Idler and Track Adjuster work together to maintain a certain degree of tension on the track. So during working and walking, should keep Front Idler running ahead, which can avoid the wear...

  Now more and more new technologies used in  Excavator and Bulldozer spare parts manufacture, for example: the friction welding. It  has been used in track roller for many years and we are a expert in this area. Friction welding is a solid-state joining process, which could achieve reliable solder joints and create high-quality, high-strength joints with low distortion. These prolong the working life of the track rollers. The  friction welding track roller  has many advantages. In friction welding, the welding allowance of the weldment and the welding power are small, the assembly requirements of the weld are not high, and the electric energy is saved, it is environmentally friendly. Because of high productivity and good quality, it has been widely applied in track roller manufacture. Why does the friction-welding track roller be better in the wear-resistance and have a longer working lifetime? Firstly, consumption of raw material: the roller bodies of traditio...

  Compared with the casting, the shell body of the   forged idler   has a more uniform structure, better density, better strength integrity, better dimensional characteristics, and smaller dimensional error. The directional structure has higher performance in overall strength and application capability than the casting. High Strength Hot forging promotes the refinement of crystallization and grain, maximizing the material strength and consistency and reducing variation between forgings. The granular flow precisely flows along the shell body contour. These continuous streamlines are conducive to reducing the incidence of fatigue or common failures. The Reliability One of the most important advantages of forgings is that they can meet the requirements of the designed structure. The Structural Integrity Forging eliminates internal flaws and produces a coherent and uniform metallurgical structure assuring optimum performance. Where stress and corrosion problems of crystals ar...