SB81 Silent Box Type 140mm Chisel Hydraulic Rock Breaker Hammer for 18-26 Ton Excavator
SB81 Silent Box Type Hydraulic Rock Breaker
The SB81 Silent Box Type Hydraulic Breaker combines powerful breaking performance with advanced noise reduction technology. Designed for 18-26 ton excavators, this breaker delivers 4,067 Joules of impact energy while maintaining a noise level as low as 109 dB, making it suitable for urban construction and noise-sensitive environments.
Key Specifications
| Impact Energy | 4,067 J |
| Blows Per Minute | 350-500 BPM |
| Chisel Diameter | 140 mm |
| Working Pressure | 160-180 Bar |
| Oil Flow | 130-180 L/min |
| Operating Weight | 1,978 kg |
| Suitable Excavator | 18-26 Ton |
| Mounting Type | Box Type (Silent) |
| Noise Level | 109 dB |
Silent Box Technology
The fully enclosed noise-cancelling casing wraps the entire breaker body, significantly reducing noise pollution. This meets strict environmental standards for residential renovations, municipal engineering, and indoor demolition projects where noise regulations apply.
Durable Construction
Main body forged from high-grade alloy steel with heat treatment. Precision-honed piston ensures smooth reciprocating motion. Nitrogen gas-charged accumulator dampens hydraulic pressure spikes. Side mounting bracket with reinforced pin design provides secure attachment to excavator arm.
Complete Spare Parts Support
Full range of replacement parts available including seal kits, pistons, inner/outer bushes, chisels, front covers, and diaphragm accumulators. Compatible with Soosan SB81 standard specifications.
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