Hydraulic Atlas Copco Excavator Breaker Parts Cylinder For Rock Breaking

Atlas Copco SB Series Hydraulic Breaker Cylinder Forged Alloy Steel Solid Body Main Power Housing Demolition Hammer Core Spare Parts

Atlas Copco SB series hydraulic breaker cylinder is the integrated solid main housing that holds impact piston and transmits stable hydraulic striking power, serving light and medium solid body hydraulic breakers matched with 1–16 ton excavators for building demolition road renovation and secondary rock breaking works. This core structural spare part covers all mainstream SB models SB50 SB52 SB100 SB102 SB150 SB152 SB200 SB202 SB300 SB302 SB400 SB450 SB452 SB552 SB702 and SB850.

We supply a full range of high strength alloy steel grades to satisfy various demolition working intensity including 40Cr 42CrMo 20CrMo GCr15 40CrNiMo 9Cr2MoV SCM440 SAE4140 SAE4340 with customizable material formula on request. Every cylinder adopts one piece integral forging craft to eliminate internal porosity shrinkage cavity and micro cracks inside cylinder wall, improving long-term impact resistance.

Quenching and tempering heat treatment balances cylinder wall hardness and toughness to resist deformation and crack under high hydraulic pressure. The inner bore undergoes precision mirror honing processing to form ultra smooth surface, cutting friction loss between cylinder and piston while avoiding hydraulic oil leakage during long shift demolition operation.

All mounting holes oil passages and assembly connecting surfaces are CNC precision machined with tight dimensional tolerance for direct OEM replacement without secondary modification. Matched with front head through bolt seal kits and nitrogen diaphragm, it forms an integrated sealed power unit and guarantees consistent breaking efficiency for all demolition scenarios.

Suitable for indoor building dismantling concrete slab breaking wall demolition asphalt cutting foundation trimming landscaping and small quarry secondary crushing works. Each finished cylinder passes hydraulic pressure tightness test internal flaw inspection bore size measurement and assembly fitting test to reach original equipment interchange standards.

We maintain full stock of all SB series cylinder specifications supporting small repair retail orders and large volume wholesale orders. Custom inner bore length oil port layout and outer dimension machining service can be provided for global machinery maintenance factories and spare parts dealers.

Hydraulic Breaker Hammer Chisel of Shipping photos

Hydraulic Breaker Hammer Chisel of factory photos

Workers Inspecting Hydraulic Breaker Chisels

Heat Treatment Process of Hydraulic Breaker Chisels

We also provide other brands of hydraulic breaker spare parts