? Best selected seals group, shaft and bushings. 

? Proper induction hardening and tempered and spray hardening. 

? Exceed the most stringent machine performance. 

? Casting or forging types included 

? Assembly in clean room.Tightness test.Running test.

?The cylinder and piston rod choose high quality 45# alloy steel, with high strength 

?The sealers adopt imported Japan NOK sealer 

?With overall tempering and surface high-frequency quenching 

?After surface polishing the roughness can reach Ra0.08 um

?surface quenching HRC 54-60 

?face hardening depth(bulldozer 5-7mm,excavator 4-5mm) 

?Corner hardening depthmore than 1.5mm

? Proper and effective quenching hardening and tempered and spray hardening

? Exceed the most stringent machine performance 

? With complete models and types from 6 to 60 tons

?Using high strength, abrasion resistant steel with heat treatment, especially for track links which link pitch is larger than 190mm, we use the best material 35MnB. 

?Using the material 20CrMo for Track Bushing, carburizing treatment both outside and inside, the hardness depth can be 2.5 to 3mm. 

? Excellent structural design 

? Reasonable bending key points 

? Reasonable structure to ensure mechanical properties and toughness 

? Good painting and appearance