Jiangsu Guchuan Machinery Co., Ltd.
                                                                                                           
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Guchuan Construction Machinery Main Body SB70SB81 SB21 Hydraulic Breaker Hammer Spare Parts

Price Negotiable
Price: Negotiable
MOQ: 10
Delivery Time: 20-25 days
Brand: SEWOOMIC
Product Description

This article provides a detailed technical overview of our premium breaker hammer bodies designed for models SB70/GCB210, SB81/GCB220, and SB121/GCB320.


Professional Guide to Guchuan Machinery's Breaker Hammer Bodies: Models SB70/GCB210, SB81/GCB220, SB121/GCB320

Technical Specifications & Applications

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.

Advanced Material Science & Construction

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).

Parameter

Light Weight Range Hydraulic Breaker
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
Medium Weight Range Hydraulic Breaker
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
Large Weight Range Hydraulic Breaker
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

Innovative Hydraulic Technology

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

Engineering Excellence & Design Features

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

Comparative Advantages Over Conventional Breakers

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

Industry Applications & Case Studies

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

Maintenance & Service Support

Guchuan's global support network ensures:

  • Genuine spare parts availability

  • Technical documentation in multiple languages

  • Remote diagnostic support

  • On-site service training for partners

Why Choose Guchuan Breaker Hammers?

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


Company Profile

Jiangsu Guchuan Machinery Co., Ltd. is a leading manufacturer based in Changzhou, Jiangsu Province, China. Established in 2010, our company occupies over 18,000 square meters and employs more than 120 skilled professionals. We specialize in the research, development, manufacturing, sales, and service of hydraulic breaker hammers and other Construction Attachments, offering comprehensive solutions for the construction and demolition industries.

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Get in Touch

Have questions about our products or want to discuss a custom order? Our team is ready to help you.

Company Jiangsu Guchuan Machinery Co., Ltd.
Location No. 109, Liuyanghe Road, Xinbei District, Changzhou City,China
Contact Person Sales

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