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D. Main structure of hydraulic breaker
Breaker consists of five main sections such as Cylinder, Piston, Control valve,
Front head and Back head.
1. Four through bolts are holding cylinder, back head and front head together. 2. Cylinder contains piston, control valve and accumulator where Nitrogen gas is charged. 3. Piston strikes the working tool by oil & gas pressures. 4. Control valve located inside cylinder determines direction of piston movement. 5. Tool pins are located inside front head, limiting tool stroke distance. 6. Back head has a chamber where Nitrogen gas is charged.
CB20, CB40, CB60
Through bolt
Back head CB80 CB140, CB210, CB380
Through bolt
Back head
Control valve Cylinder Piston Control valve
Cylinder Piston
Accumulator
Front head Front head
