1. Return stroke: High-pressure hydraulic oil flows into breaker lower cavity, piston moves upward, hydraulic oil enters accumulator oil chamber to squeeze diaphragm inward, inner nitrogen of diaphragm is compressed, hydraulic energy converts into nitrogen compression potential energy for storage.
2. Oil circuit reverses when piston reaches top dead center, high-pressure oil switches into upper piston cavity.
3. Power stroke: Compressed high-pressure nitrogen inside diaphragm expands outward instantly, push diaphragm to extrude stored hydraulic oil back into hydraulic circuit, supplement instantaneous high flow to drive piston fast downward striking chisel.
4. Single striking finished, hydraulic oil pushes diaphragm to compress nitrogen again, repeat reciprocating energy storage & release cycle continuously.
5. The diaphragm always separates nitrogen gas and hydraulic oil completely to avoid gas-liquid mixing and system pressure failure.

Supplier Supporting Service

• 24/7 online technical consultation for global buyers: model matching, installation guidance and breakdown troubleshooting.
• Three-step pre-delivery QC: raw material inspection → finished appearance screening → random air tightness spot check.
• OEM customized service: print customer’s private brand logo on export carton, customizable packing specification.
• Multiple global shipping options: sea freight, air freight, international express with full logistics tracking inquiry.
• One-stop SB81 full spare supply: seal kit, piston, chisel, front bushing, back head spare parts all in stock.

FAQ

Q1: What causes original diaphragm frequent nitrogen leakage?

A1: Rubber aging, inner crack or pinhole damage caused by over-high pre-charged nitrogen pressure.

Q2: What is the raw material of this SB81 membrane?

A2: High-performance imported HNBR hydrogenated nitrile rubber with anti-aging formula.

Q3: Can I buy one piece sample first before bulk purchase?

A3: Yes, single sample available, bulk order gets preferential tiered pricing.