SAE4340 Excavator Hydraulic Hammer Components Rock Breaker Accessories Replacement

High Shear Strength Tool Retainer For Atlas Copco MB Series Excavator Hydraulic Rock Breaker Lock Component

We supply multiple high strength alloy steel grades for different heavy working scenarios covering 40Cr 42CrMo 20CrMo GCr15 40CrNiMo 9Cr2MoV SCM440 SAE4140 SAE4340 and customized material options. Every tool retainer is produced via one piece integral forging to eliminate internal cracks and improve overall structural toughness.

Quenching and tempering heat treatment greatly enhance shear resistance and impact fatigue resistance. It maintains stable clamping force under continuous high frequency striking and avoids loose chisel or tool drop issues on tough construction sites.

All tool retainers are processed by precision CNC machining to keep precise dimensional tolerance for direct OEM replacement without modification. Cooperated with rod pin it locks the breaking chisel tightly to guarantee stable breaking performance during quarry mining concrete demolition tunnel excavation and municipal reconstruction works.

Each finished tool retainer goes through shear strength test assembly matching inspection and impact endurance test to reach original equipment interchange standards. We maintain full stock of all MB series specifications to support small repair orders and large bulk wholesale orders. Custom size for special breaker models can be produced for global machinery dealers and maintenance factories.

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