SB81 Silent-Type Hydraulic Breaker with 4067 Joule Impact Energy 140mm Chisel

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Place Of Origin	China
Payment Terms	L/C,T/T
Supply Ability	50 pcs/month
Delivery Time	15-20 working days
Packaging Details	Wooden Case
Working Flow	120-180 L/min
Setting Pressure	210-230 Bar
Operating Pressure	160-180 Bar
Impact Energy	4067 Joule
Impact Rate	350-500 Bpm
Hose Diameter	1 inch
Noise Level	118 db
Chisel	140mm
Warranty	1 Year
Brand Name	SEWOOMIC
Model Number	SB81 / GCB220
Certification	CE / ISO9001

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Product Specification


Place Of Origin	China	Payment Terms	L/C,T/T
Supply Ability	50 pcs/month	Delivery Time	15-20 working days
Packaging Details	Wooden Case	Working Flow	120-180 L/min
Setting Pressure	210-230 Bar	Operating Pressure	160-180 Bar
Impact Energy	4067 Joule	Impact Rate	350-500 Bpm
Hose Diameter	1 inch	Noise Level	118 db
Chisel	140mm	Warranty	1 Year
Brand Name	SEWOOMIC	Model Number	SB81 / GCB220
Certification	CE / ISO9001
High Light	Silent-Type Hydraulic Breaker with noise reduction ，Hydraulic Breaker with 4067 Joule impact ，140mm Chisel Hydraulic Breaker

Box Silent Type SB81 Hydraulic Breaker - 1978kg with 140mm Chisel for 18-26 Ton Excavators

High Power, Lower Noise Performance

The SB81 Silent-Type Hydraulic Breaker delivers elite breaking force exceeding 4,000 joules while significantly reducing noise pollution, making it the intelligent choice for urban and sensitive environment projects.

Engineered for Power and Compliance

The SB81 Silent-Type Breaker tackles demanding rock breaking and heavy demolition tasks while addressing critical modern worksite requirements: noise control and operational sustainability.

Advanced Noise Reduction System: Specialized noise-dampening technology with optimized shroud design and internal damping materials achieves controlled noise levels of 118 dB.
Intelligent Auto-Variable Frequency: Automatically adjusts impact rate (350-500 BPM) based on material hardness for optimized efficiency and reduced hydraulic shock.
High-Efficiency Hydraulic Design: Pure hydraulic system delivers 4,067 Joules of impact energy with optimized oil flow for maximum force transfer.
Robust Construction: Designed for 140mm tool diameter with heavy-duty, wear-resistant components for extended durability and lower total cost of ownership.

Technical Specifications

Model No.	Chisel Diameter (mm)	Excavator Weight (ton)	Body Weight (kg)	Working Flow Rate (L/min)	Working Pressure (Bar)	Impact Rate (bpm)
SB10/GCB40	40	0.8-2.5	73	15-30	90-120	800-1400
SB20/GCB45	45	1.2-3.0	100	20-40	90-120	700-1200
SB30/GCB50	53	2.5-4.5	120	20-50	90-120	500-900
SB40/GCB60	68	4.0-7.0	298	40-70	110-140	400-800
SB43/GCB75	75	6.0-9.0	375	50-90	120-150	400-800
SB50/GCB100	100	11-16	890	80-110	150-170	350-700
SB81/GCB22O	140	18-26	1754	120-180	160-180	350-500
SB81A/GCB220	140	18-26	1773	120-180	160-180	350-500
HB20G/GCB200	135	18-25	1680	125-150	160-180	400-800
SB121/GCB320	155	28-35	2555	180-240	160-180	300-450
SB131/GCB350	165	35-43	3065	200-260	160-180	250-400
HB30G/GCB300	150	25-30	2305	160-190	160-180	350-700
GCB500	195	50-60	5350	245-290	230-250	100-150
GCB650	210	65-100	7200	290-340	250-270	90-130

Ideal Applications

The Guchuan SB81 Silent Breaker is the optimal solution for projects where performance cannot compromise with regulations or community relations:

Urban Demolition & Construction: Building demolition, foundation work, and trenching in cities, hospitals, schools, and residential areas with strict noise ordinances.
Infrastructure Projects: Roadwork, bridge repair, and subway construction near sensitive zones.
Quarry & Mining Operations: Primary and secondary rock breaking where noise mitigation is a growing concern.
24/7 Operations: Enables extended work hours in noise-regulated environments, increasing project flexibility.

Why Choose the Guchuan SB81 Silent Breaker?

Regulation-Ready Performance: Achieves high-impact breaking while meeting stricter environmental and workplace noise standards.
Enhanced Operator Comfort: Significantly reduces operator fatigue and hearing risk for better focus, safety, and productivity.
Superior Power-to-Weight Ratio: Delivers top-tier impact energy for its class, ensuring faster completion of tough breaking tasks.
Intelligent & Efficient: Auto-variable frequency system maximizes hydraulic efficiency, reduces fuel consumption, and minimizes wear.
Proven Guchuan Reliability: Backed by over a decade of OEM-level manufacturing expertise with robust construction and reliable technical support.

Partner with Guchuan Machinery for hydraulic breakers that combine cutting-edge engineering with practical job-site smarts. Contact us today to discuss how this breaker can optimize your specific application.

Company Details

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Business Type:

Manufacturer 
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Year Established:

2011 
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Employee Number:

>180 
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Ecer Certification：

Verified Supplier 

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Jiangsu Guchuan Machinery Co., Ltd.
No. 109, Liuyanghe Road, Xinbei District, Changzhou City,China
https://www.hydraulicbreaker.com/

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