ZX870-5G HITACHI Excavator Boom Cylinder Assy
Boom Cylinder Assy. ZX870-5G
Applicable Industries: Machinery Repair Shops,Building Material Shops, Construction works
Place of Origin: Quanzhou China
Product Name: Boom Cylinder Assy. ZX870-5G
Model: ZX870-5G HITACHI
Warranty: One Year
Color:Yellow,Black or Customized
Marketing Type:New Product 2021
Warranty of core components:1 Year
Payment Terms: T/T , Western Union
Port: Xiamen Port
Supply Ability:3000 Set/Sets per Month
Packaging Details:Wooden boxes, straw ropes or negotiated with customers
1.Rod:Induction hardened prior to chrome plating enhances the surface hardness. Enhanced chrome plating improve corrosion resistence and anti-scratch performance.
2.Tube:Skived & burnished or vertical honing tube assures the concentricity and straightness
3.Eye:all eyes made of forged high strength steel improve cylinder not only in appearance but in mechanical performance
4.Cap:all caps are made of forged high strength steel.
5.Bushing:Hardened steel bushing or copper bushing.
6.Rod Seal:Superior quality named-brand seals
improve a longer life and seal effect Polyurethane U-packing rod seals/buffer seals
Bonded-to-metal wiper seals Custom seals available
7.Piston:High pressure piston sealing material.Teflon or nylon seals.High precision machining maximize the consistency of parts.
Material and Process of Excavator hydraulic cylinder
Piston Rod :40Cr Hardening and tempering with heat treatment ,hard chrome plated,mirror polishing
Cylinder Barrel : 25Mn Tempering heat treatment to anti-deformation,25Mn is more bearable than C45/C20 steel
Barrel/rod end&head : Forged high strength steel
Seal Kits: NOK, SKF
Bushing: Hardened steel or copper