Base Excavators
Tracked Excavators
- CAT336 / CAT345 / CAT349 / CAT349
- HITACHI EX400 / EX450 / ZAXIS380 / ZAXIS450LC
- JCB JS400 / JS450 / JS460
- KOMATSU PC400 / PC450
- VOLVO EC380 / EC406 / EC420 / EC450 / EC460 / EC480
- SUMITOMO SH400 / SH450
Silenced Box type breaker is advanced Design with ANTI BLANK firing feature (AUTO STOP).
The percussion chamber is inserted in outer box body, with Polyurethane dampers in between, for more effective shock absorption.
This enhances not only the life of breaker components, but also increases the life of Base excavator super structure, swing components and Boom & stick.
Technical Features PDFWorking Weight1): 3500 kg / 6,836 lbs
Weight without chisel and mounting adapter: 2,993 kg / 5,496 lbs
Overall Length2): 3,532 mm / 139 in
Required Oil Flow: 190 ~ 250(50 ~ 66) lpm(gpm)
Operating Pressure: 160 ~ 200(2,320 ~ 2,900) bar(psi)
Blow Frequency: 300 ~ 700 bpm
Impact Energy: 11,040(8,147 J(ft.lbf)
Tool(Chisel) Shank Diameter: 160 mm / 6.3 in
X(Box): Silenced Version – Adapter Mount Unit: mm
Standard Mounting Adapter for X version
Pressure Adjust Valve setting3)
(number of turns open from the full-close): 2.5 ~ 3.0 turns
Pressure Relief(min): 40(600) + measured max. operating pressure