Hydraulic Rock Breaker Attachment for Excavators

Description

The Hydraulic Rock Breaker converts hydraulic power from a compatible excavator into repeated impact force for breaking hard materials. It is designed for applications where rock or concrete needs to be fractured before removal, excavation or further processing. The attachment shown features a yellow steel housing and an upper mounting bracket with two mounting pins. Its elongated configuration positions the working tool away from the mounting assembly, allowing the excavator operator to direct the tool towards the material being broken. For demolition projects, a hydraulic breaker can assist with breaking concrete slabs, foundations and other structures selected for removal. In excavation work, it can be used to break rock that cannot be removed effectively with a bucket alone. Actual performance depends on the material, working tool, hydraulic supply and operating conditions. Correct matching between the breaker and excavator is essential. The carrier’s operating weight, hydraulic oil flow, working pressure and mounting dimensions must be checked against the breaker’s requirements. The model marking alone does not establish compatibility with a particular excavator. The working tool should also be selected for the intended task. Tool diameter, tool type and the supplied mounting components require confirmation before ordering. Specification Details Model JSB400BT (SB40 Silenced Type) Overall Dimensions 158.8 × 35 × 40 cm Wooden Packing Case Dimensions 138× 51× 62 cm Pallet Dimensions 110 × 40 cm Total Weight 361 kg Breaker Core Weight 153 kg Chisel Weight 17 kg Chisel Diameter 68 mm Hydraulic Oil Flow 40–70 L/min Working Pressure 110–140 kgf/cm² Relief Pressure 160 kgf/cm² Hydraulic Hose Diameter ½ inch Impact Rate 500–900 blows/min Nitrogen Chamber Pressure 15–17 kgf/cm² Impact Energy 629 J Compatible Excavator Weight 4–7 tonnes Mounting Bracket Opening 130–180 mm; customisable Mounting Pin Centre Distance 265 mm; customisable