NPK GH-7 Hydraulic Breaker Rock Hammer Piston CrMo42 Hydraulic Hammer Spare Parts

• High‑Temperature & Fatigue Resistance​: Stable performance under continuous heavy‑load operation, resisting deformation, cracking, and metal fatigue in harsh demolition conditions.

• Optimized Surface Hardening: Features induction hardening on the contact and sliding areas, achieving an ultra-tough surface with a ductile core, drastically extending piston service life.
• Precision Induction Surface Hardening​: Optimized heat treatment creates a high‑hardness surface layer with a tough core, greatly enhancing wear and seizure resistance.

• Competitive Factory Direct Pricing​:As a manufacturer and direct supplier, we eliminate middlemen to offer cost-effective prices without compromising quality.
• Carefully Selected Materials with Rich Manufacturing Experience: We provide a complete series of pistons for a wide range of hydraulic breaker brands and models. Our extensive product database enables us to ensure precise matching to your specific model for a perfect fit and optimal performance.
• Full Range Supply with Precise Model Matching: We provide a complete series of pistons for a wide range of hydraulic breaker brands and models. Our extensive product database enables us to ensure precise matching to your specific model for a perfect fit and optimal performance.
• Fast & Reliable Global Delivery:Strategically loed in Guangzhou, we ensure prompt order processing, secure packaging, and on-time delivery worldwide.

• Ring Bush	Thrust Bush	Upper Bush	Front Cover	Tool Bush
  Buffer Seal	Dust Seal	U-Packing	Back-up ring	Side Bolt
  Rod Moil Point	Chisel	Washer	Through Bolt	Side Rod
  Air Check Valve	Valve Adjuster	Accumulator	Accumulator Body	Accumulator Cover
  Front Head	Grease Nipple	Rod Pin	Stop Pin	Rubber Plug
  Charging V/V	Diaphragm	Seal Kit	O-Ring Seal	Gas Seal
  Socket Plug	Piston	Adapter	Valve	Valve Plug
  Down Cushion	Tool Set	N2 Gas Charging Set	N2 Gas Cylinder	B-3way valve assy
  Seal Retainer	Valve Sleeve	Front Head Pin	Lower Bush	Hex Nut
  Socket Bolt	Step Seal	Upper Cushion	Rubber Pad	Shock Absorber

Guangzhou Huilian Hydraulic Technology Co., LTD.

Guangzhou Huilian Hydraulic Technology Co., LTD. is a professional supplier for hydraulic breaker parts and excavator parts and OEM hydraulic seals manufacturer. We specialize in completed seal kits and separate seals for hydraulic breaker and excavator more than Ten years in Guangzhou, China.

Guangzhou Huilian Hydraulic Technology Co., LTD. supply almost all brands breakers' parts like Seal kits, Diaphragm, Piston, Chisel, Wear Bush upper and lower, Rod Pin, Through Bolts, Side Bolts, Control Valve,Front Head, Cylinder, Accumulator, N2 Gas Charging Kit, etc.

Also supply almost all brands excavator' parts like hydraulic cylinder boom arm bucket seal kit, hydraulic pump and travel swing motor etc. We insist on high quality parts with genuine and OEM after market replacement parts.

Specializes in:

--Excavator spare parts

--Hydraulic breaker accessories