Yantai Dopro Industry Technology Co., Ltd.
| Payment Terms | T/T, L/C, Western Union |
| Supply Ability | 150 Sets per Month |
| Delivery Time | 15-25 working days |
| Packaging Details | Export-grade plywood case with anti-rust coating and shock-proof foam |
| Impact Energy | 4,067 J |
| BPM | 350-500 |
| 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 |
| Brand Name | DOPRO |
| Model Number | SB81 |
| Place of Origin | Shandong, China |
| Certification | ISO 9001:2015, CE |
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Product Specification
| Payment Terms | T/T, L/C, Western Union | Supply Ability | 150 Sets per Month |
| Delivery Time | 15-25 working days | Packaging Details | Export-grade plywood case with anti-rust coating and shock-proof foam |
| Impact Energy | 4,067 J | BPM | 350-500 |
| 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 | Brand Name | DOPRO |
| Model Number | SB81 | Place of Origin | Shandong, China |
| Certification | ISO 9001:2015, CE | ||
| High Light | Silent Box Type Breaker ，140mm Chisel Rock Hammer ，18-26 Ton Excavator 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.
| 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 |
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.
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.
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.
Company Details
Business Type:
Manufacturer,Exporter
Year Established:
2010
Total Annual:
10000000-50000000
Employee Number:
080~100
Ecer Certification：
Active Member
DOPRO is a professional manufacturer of Hydraulic Breaker for more than 15 years, we are leading manufacturer in china domestic market for breaker spare part and whole breaker production ,meanwhile we get more production line for excavator attachments . Until now ,we get three factory and one expo... DOPRO is a professional manufacturer of Hydraulic Breaker for more than 15 years, we are leading manufacturer in china domestic market for breaker spare part and whole breaker production ,meanwhile we get more production line for excavator attachments . Until now ,we get three factory and one expo...
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