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HB20G Open Type Hydraulic Breaker Rock Breaker for 18-25 Tons Excavator With 135mm Chisel
HB20G Open Type Hydraulic Breaker Rock Breaker for 18-25 Tons Excavator With 135mm Chisel
HB20G Open Type Hydraulic Breaker Rock Breaker for 18-25 Tons Excavator With 135mm Chisel
HB20G Open Type Hydraulic Breaker Rock Breaker for 18-25 Tons Excavator With 135mm Chisel
HB20G Open Type Hydraulic Breaker Rock Breaker for 18-25 Tons Excavator With 135mm Chisel
HB20G Open Type Hydraulic Breaker Rock Breaker for 18-25 Tons Excavator With 135mm Chisel
Specifications
Brand Name :
SEWOOMIC
Model Number :
HB20G
Certification :
CE / ISO9001
Place of Origin :
China
MOQ :
1
Price :
Negotiable
Payment Terms :
T/T,L/C
Supply Ability :
100 pcs/month
Delivery Time :
20-25days
Packaging Details :
Wooden Box
Suitable Excavator :
18-25 Tons
Operating Weight :
1766 Kg
Required Oil Flow :
125-160 L/min
Setting Pressure :
210-230 Bar
Operating Pressure :
160-180 Bar
Impact Energy :
3692 Joule
Impact Rate :
350-600 Bpm
Hose Diameter :
1 Inch
Noise Level :
120 DB
Tool Diameter :
135 mm
Warranty :
1 Year
Description

HB20G Open Type Nitrogen Hydraulic Breaker – Professional-Grade Demolition Power for 18–25 Ton Excavators

Company Overview: Guchuan Machinery Co., Ltd.

Established in 2010 and headquartered in Changzhou, Jiangsu, China, Guchuan Machinery Co., Ltd. is a leading manufacturer and global B2B supplier of high-performance hydraulic breakers, hydraulic hammers, rock breakers, and demolition attachments for construction machinery. With over a decade of focused R&D, precision manufacturing, and strict quality control, we have built long-term strategic partnerships with many world-renowned construction machinery brands and hydraulic breaker manufacturers across the globe.
Our product portfolio covers a full range of hydraulic breakers from mini to ultra-heavy-duty models, including:
SB10/GCB30, SB20/GCB40, SB30/GCB50, SB35/GCB53, SB40/GCB60, SB43/GCB75, SB45/GCB85, SB50/GCB100, SB60/GCB190, SB70/GCB210, SB81/GCB220, SB100/GCB280, SB121/GCB320, SB131/GCB350, SB140/GCB360, SB151/GCB400;
MS550/GHB120, MS600/GHB130, MS700/GHB140, MS800/GHB160;
HB15G/GCB180, HB20G/GCB200, HB30G/GCB300, HB40G/GCB330;
MB1500/NB1500.
We also produce customized ultra-heavy-duty hydraulic breakers with tool diameters of 175mm, 195mm, 200mm, 205mm, and 210mm for large-scale mining, quarrying, and heavy infrastructure projects.
Guchuan Machinery owns independent intellectual property rights and strong capabilities in developing auto-variable frequency pure hydraulic breakers and nitrogen-assisted hydraulic breakers. All our products are engineered to deliver exceptional power, durability, efficiency, and cost-effectiveness for distributors, rental companies, construction contractors, and engineering enterprises worldwide.

Product Introduction: HB20G Open Type Nitrogen Hydraulic Breaker

The HB20G open type nitrogen hydraulic breaker is a mid-range, high-performance demolition attachment designed exclusively for 18–25 ton excavators. It combines advanced nitrogen energy storage technology, a robust open-frame structure, optimized hydraulic systems, and heavy-duty components to deliver reliable breaking performance in diverse construction scenarios.
This model is widely used in municipal maintenance, building renovation, landscaping, farmland water conservancy, traffic engineering, and industrial site reconstruction. It excels at breaking reinforced concrete, asphalt, medium-hard rock, hardened soil, and small foundations with high efficiency and stability.

HB20G Open Type Hydraulic Breaker Rock Breaker for 18-25 Tons Excavator With 135mm Chisel

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

Working Principle & Advanced Technical Features


The HB20G adopts an advanced nitrogen-hydraulic composite power system, which is the core technology that sets it apart from standard hydraulic breakers.

1. Nitrogen Energy Storage & Recovery System


The rear chamber is filled with high-pressure nitrogen. During the piston’s upward stroke, nitrogen is compressed to store energy. During the downward stroke, hydraulic pressure and nitrogen expansion energy act simultaneously on the piston, significantly boosting impact energy and impact frequency. This design reduces hydraulic oil consumption, lowers heat generation, and protects the excavator’s hydraulic system.

2. Open Type Frame Structure


The open-frame design provides direct access to internal components for inspection, cleaning, and maintenance. It improves heat dissipation, reduces clogging from mud and debris, and enhances durability in harsh working conditions.

3. Optimized Hydraulic Control System


The precision-engineered hydraulic system ensures smooth oil flow, stable pressure, and consistent impact performance. It automatically adjusts impact frequency based on material hardness, preventing blank firing and reducing component wear.

4. High-Strength Alloy Steel Components


Key parts including the piston, cylinder, front head, tool bushing, and control valve are made from high-strength alloy steel (40CrMo, 42CrMo) through precision forging, heat treatment, and fine grinding. This ensures exceptional wear resistance, pressure resistance, and service life under heavy loads.

5. Anti-Blank Firing & Overload Protection


The built-in anti-blank firing system prevents piston damage when the chisel is not in contact with the material. Overload pressure protection avoids system failures caused by excessive pressure, improving safety and stability.

6. Easy Maintenance & Long Service Life


The modular design simplifies seal replacement, tool changes, and routine inspections. High-quality oil seals and wear parts extend service intervals and reduce downtime.


Core Product Advantages


1. Strong & Stable Breaking Power


With 3692 Joules of impact energy and an impact rate of 350–600 Bpm, the HB20G efficiently breaks reinforced concrete, asphalt, rock, and hardened soil. The nitrogen-assisted system ensures consistent power without hydraulic fluctuations.

2. Open Frame for Durability & Maintenance


The open structure reduces heat buildup, resists mud and dust, and allows quick maintenance. This lowers long-term operating costs and increases uptime.

3. Perfect Compatibility with 18–25 Ton Excavators


It fits all major excavator brands including CAT, Komatsu, Hitachi, Kobelco, Doosan, Hyundai, XCMG, SANY, and LiuGong. Installation and debugging are simple and fast.

4. High Efficiency & Energy Saving


The optimized hydraulic system matches the 125–160 l/min oil flow range of medium excavators, reducing fuel consumption while improving work efficiency by 20–30% in municipal and renovation projects.

5. Heavy-Duty Reliability


High-strength components, advanced heat treatment, and strict assembly standards ensure stable performance in harsh construction environments.

6. Safe & User-Friendly Design


Anti-blank firing, overload protection, and stable vibration control enhance safety for operators and equipment, especially in urban and confined spaces.


Main Application Fields & Scenarios


The HB20G open type nitrogen hydraulic breaker is widely used in projects requiring high efficiency, reliability, and versatility.

1. Municipal & Public Facility Maintenance


  • Sidewalk & Road Repair: Breaks concrete sidewalks, curbs, and damaged asphalt for quick patch repairs.
  • Trench Excavation: Crushes hardened soil and shallow rock for pipeline and cable trenches.
  • Drainage Construction: Demolishes concrete drainage ditches, pipe wells, and septic tanks; clears hardened blockages.
  • Urban Landscaping: Breaks old flower beds, retaining walls, and small concrete foundations for street lamps and billboards.

2. Building Renovation & Interior Demolition


  • Wall Reconstruction: Demolishes non-bearing walls, concrete partitions, and widens door/window openings.
  • Floor Removal: Breaks bathroom/kitchen floor layers and old terraces without structural damage.
  • Small Foundation Demolition: Crushes equipment bases, steps, and canopy foundations.
  • Basement Work: Performs local demolition in confined underground spaces.
  • Grooving: Cuts precise channels for pipelines with controlled vibration.

3. Landscaping & Farmland Water Conservancy


  • Rock Breaking: Crushes field boulders and weathered rock for land leveling.
  • Tree Pit Excavation: Works efficiently in hard soil and soft rock.
  • Ditch Restoration: Breaks hardened ditch linings and repairs small dams.

4. Traffic & Road Auxiliary Engineering


  • Highway Maintenance: Crushes guardrail foundations and damaged bridge decks.
  • Tunnel Repair: Compact size fits narrow tunnel spaces for small-scale repairs.
  • Railway Maintenance: Clears track bed hardened blocks and repairs drainage ditches.

5. Industrial & Commercial Sites


  • Factory Floor Renovation: Breaks old workshop concrete floors for replacement or grooving.
  • Equipment Demolition: Crushes small production line foundations and storage tank bases.

In all these applications, the HB20G delivers high efficiency, stable performance, and reliable operation.


Why Choose Guchuan Machinery HB20G Hydraulic Breaker?


  1. Professional Manufacturer Expertise: Founded in 2010, we focus exclusively on hydraulic breakers with deep industry knowledge.
  2. Full Product Range: We offer one-stop procurement from mini to ultra-heavy-duty models.
  3. Independent R&D Capability: Auto-variable frequency and nitrogen hydraulic technologies ensure superior performance.
  4. Strict Quality Control: High-grade materials, precision machining, and comprehensive testing guarantee reliability.
  5. Global Partnerships: We cooperate with world-famous brands and serve customers in over 60 countries.
  6. Professional B2B Service: Customization, technical support, spare parts supply, and after-sales service.
  7. Cost-Effective Solution: High performance, long service life, and low maintenance reduce total cost of ownership.

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HB20G Open Type Hydraulic Breaker Rock Breaker for 18-25 Tons Excavator With 135mm Chisel

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Product Detail
Brand Name :
SEWOOMIC
Model Number :
HB20G
Certification :
CE / ISO9001
Place of Origin :
China
MOQ :
1
Price :
Negotiable
Contact Supplier
video
HB20G Open Type Hydraulic Breaker Rock Breaker for 18-25 Tons Excavator With 135mm Chisel
HB20G Open Type Hydraulic Breaker Rock Breaker for 18-25 Tons Excavator With 135mm Chisel
HB20G Open Type Hydraulic Breaker Rock Breaker for 18-25 Tons Excavator With 135mm Chisel

Jiangsu Guchuan Machinery Co., Ltd.

Verified Supplier
2 Years
changzhou
Since 2011
Business Type :
Manufacturer
Main Products :
Hydraulic Hammer, Hydraulic Breaker, Hydraulic Breaker Hammer
Employee Number :
>180
Certification Level :
Verified Supplier
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