| Payment Terms | T/T,L/C,D/P |
| Supply Ability | 100 PCS/Month |
| Delivery Time | 20-25 days |
| Packaging Details | Wooden Box |
| Video outgoing-inspection | Provided |
| Machinery Test Report | Provided |
| Warranty | 1 Year |
| Material | 20CrMo/40Cr/42CrMo/20Cr2Ni4/35CrMo |
| Model | SB70/81/121 |
| Place of Origin | Jiangsu, China |
| Brand Name | SEWOOMIC |
| Certification | ISO9001:2015,CE |
View Detail Information
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Product Specification
| Payment Terms | T/T,L/C,D/P | Supply Ability | 100 PCS/Month |
| Delivery Time | 20-25 days | Packaging Details | Wooden Box |
| Video outgoing-inspection | Provided | Machinery Test Report | Provided |
| Warranty | 1 Year | Material | 20CrMo/40Cr/42CrMo/20Cr2Ni4/35CrMo |
| Model | SB70/81/121 | Place of Origin | Jiangsu, China |
| Brand Name | SEWOOMIC | Certification | ISO9001:2015,CE |
| High Light | excavator hydraulic breaker parts ,excavator rock breaker seal kit ,hydraulic rock breaker seal kit | ||
This article provides a detailed technical overview of our premium breaker hammer bodies designed for models SB70/GCB210, SB81/GCB220, and SB121/GCB320.
Our SB-series breaker hammer bodies are engineered for heavy-duty demolition, mining, and quarrying operations:
SB70/GCB210: Ideal for excavators in the 18-25 ton range, perfect for secondary rock breaking and concrete demolition
SB81/GCB220: Designed for 25-35 ton excavators, optimized for quarry operations and heavy construction projects
SB121/GCB320: Built for 40-50 ton excavators, delivering maximum impact energy for primary rock breaking and large-scale demolition
These models are compatible with tool diameters of 175mm, 195mm, 200mm, 205mm, 210mm, and can be customized for ultra-heavy duty applications with tool diameters up to 210mm.
Guchuan breaker bodies utilize premium alloy steels selected for specific performance characteristics:
Core Material Composition:
20CrMo & 20Cr2Ni4: Used in high-stress components for superior toughness and fatigue resistance
42CrMo & 40Cr: Employed in main structural elements for optimal strength-to-weight ratio
35CrMo: Applied in wear-resistant sections for extended service life under abrasive conditions
Our proprietary heat treatment processes enhance material properties, creating a perfect balance between hardness (for wear resistance) and ductility (to prevent catastrophic failure).
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Light Weight Range Hydraulic Breaker
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|---|---|---|---|---|---|---|
| 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 |
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Medium Weight Range Hydraulic Breaker
|
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| 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 |
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Large Weight Range Hydraulic Breaker
|
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| 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 |
Intelligent Frequency Control System:
Automatically adjusts impact rate based on material hardness
Optimizes energy consumption while maximizing productivity
Reduces hydraulic shock and system stress
Pure Hydraulic Design Advantages:
Eliminates need for nitrogen gas systems
Reduced maintenance complexity
Consistent performance across temperature variations
Environmentally friendly operation
Structural Integrity:
Finite Element Analysis (FEA) optimized design
Stress-distributing geometry minimizes peak loads
Reinforced mounting brackets for secure excavator attachment
Performance Enhancements:
Advanced accumulator technology for energy recovery
Precision-machined guide systems for optimal tool alignment
Multi-stage dampening to protect carrier machinery
Thermal Management:
Efficient heat dissipation design
High-temperature seal technology
Optimal fluid flow paths to prevent overheating
Durability & Longevity:
30-40% longer service life compared to industry standards
Reduced downtime through preventive maintenance design
Easy-access components for simplified servicing
Operational Efficiency:
Higher energy transfer efficiency (up to 72% hydraulic-to-impact conversion)
Lower fuel consumption per volume of material processed
Reduced recoil vibration for operator comfort and machine protection
Versatility & Compatibility:
Designed to work with multiple carrier brands and models
Adaptable to various working conditions without performance compromise
Quick-change tool systems for operational flexibility
Mining & Quarrying:
Primary and secondary rock breaking
Trench rock excavation
Oversize material reduction at processing plants
Construction & Demolition:
Concrete structure demolition
Foundation work
Road and pavement breaking
Specialized Applications:
Tunnel and trench excavation
Underwater demolition (with appropriate modifications)
Extreme condition operations
Guchuan's global support network ensures:
Genuine spare parts availability
Technical documentation in multiple languages
Remote diagnostic support
On-site service training for partners
Proven Expertise:
14+ years of specialized breaker manufacturing
ISO-certified quality management systems
Continuous R&D investment (5% of annual revenue)
Global Recognition:
Preferred OEM supplier to leading machinery brands
Products operating in 50+ countries worldwide
Consistently high customer retention rate
Commitment to Innovation:
Annual product enhancements based on field data
Custom engineering solutions for specific applications
Environmental compliance across all markets
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Company Details
Business Type:
Manufacturer
Year Established:
2011
Employee Number:
>180
Ecer Certification:
Verified Supplier
At Guchuan Machinery, we regard quality as the lifeblood of our enterprise and integrity as our core value. We are committed to customer satisfaction and strive for business development through high-quality products and win-win cooperation. Our management philosophy emphasizes pragmatic, efficien... At Guchuan Machinery, we regard quality as the lifeblood of our enterprise and integrity as our core value. We are committed to customer satisfaction and strive for business development through high-quality products and win-win cooperation. Our management philosophy emphasizes pragmatic, efficien...
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