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

Guchuan Machinery Co., Ltd., founded in 2010 and based in Changzhou, Jiangsu Province, China, is a trusted manufacturer and global B2B supplier of high-performance hydraulic breakers. With more than a decade of focused research, development, and precision manufacturing, we have established long-term, stable cooperative relationships with many world-famous construction machinery brands and hydraulic breaker producers. Our product range covers a complete lineup of hydraulic breakers from mini, medium, heavy-duty to ultra-heavy-duty specifications, We also provide 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. Our core technical advantage lies in our independent research and development capabilities for auto-variable frequency pure hydraulic breakers and nitrogen-assisted hydraulic breakers, ensuring stable performance, high efficiency, and long service life for global customers.

Today, we are pleased to officially launch our HB20G open type nitrogen hydraulic breaker, a robust and reliable demolition attachment designed specifically for 18–25 ton excavators. This model integrates advanced nitrogen energy storage technology, a heavy-duty open frame structure, and an optimized hydraulic system to deliver consistent breaking power in diverse construction environments. It has been widely recognized by construction contractors, equipment rental companies, and engineering enterprises as a cost-effective solution for municipal maintenance, building renovation, landscaping, farmland water conservancy, traffic engineering, and industrial site reconstruction.

Core Technical Specifications

The HB20G open type nitrogen hydraulic breaker is precision engineered to match the hydraulic output and operating conditions of mainstream 18–25 ton excavators. Its carefully calibrated parameters ensure perfect compatibility, stable power output, and maximum working efficiency:

· Suitable Excavator: 18–25 Tons

· Operating Weight: 1766 Kgs

· 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

These specifications make the HB20G ideal for long-hour continuous operation in harsh working environments while protecting the excavator’s hydraulic system from excessive pressure and wear.

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 conventional hydraulic breakers. During the piston’s upward stroke, high-pressure nitrogen in the rear chamber is compressed to store energy. During the downward stroke, hydraulic pressure and nitrogen expansion energy act simultaneously on the piston, significantly enhancing impact energy and impact frequency. This design reduces hydraulic oil consumption, lowers heat generation, and ensures stable performance even under heavy loads.

The open type frame structure is another key advantage of the HB20G. Unlike fully enclosed box-type breakers, the open frame provides direct access to internal components for quick inspection, cleaning, and routine maintenance. It improves heat dissipation, reduces clogging from mud, dust, and debris, and enhances durability in wet, muddy, or dusty construction sites. The open structure also maintains high structural rigidity while optimizing weight distribution, reducing stress on the excavator arm and improving overall fuel efficiency.

In addition, the HB20G is equipped with an optimized hydraulic control system that ensures smooth oil flow, stable pressure, and consistent impact performance. It automatically adjusts impact frequency based on material hardness, effectively preventing blank firing and reducing component wear. The built-in anti-blank firing system and overload pressure protection further enhance operational safety and equipment reliability, avoiding unexpected breakdowns caused by improper operation or excessive system pressure.

Key components including the piston, cylinder, front head, tool bushing, and control valve are manufactured from high-strength alloy steel through precision forging, heat treatment, and fine grinding. This ensures exceptional wear resistance, pressure resistance, and service life under heavy-duty working conditions. High-quality oil seals and wear parts extend service intervals and reduce downtime, helping users lower long-term operating costs.

Core Product Advantages

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, medium-hard rock, hardened soil, and small concrete foundations. The nitrogen-assisted power system ensures consistent power output without hydraulic fluctuations, improving work efficiency by a considerable margin compared with standard breakers.

Open Frame for Durability & Easy Maintenance

The open-frame design reduces heat buildup and resists clogging from mud and dust, making maintenance simpler and faster. It allows technicians to perform seal replacement, tool changes, and routine inspections with minimal downtime, increasing overall operational efficiency.

Excellent Compatibility with 18–25 Ton Excavators

The HB20G is compatible with all major excavator brands worldwide, including CAT, Komatsu, Hitachi, Kobelco, Doosan, Hyundai, XCMG, SANY, LiuGong, and others. Installation and debugging are simple and fast, supporting rapid deployment across various job sites.

High Efficiency & Energy Saving

The optimized hydraulic system matches the 125–160 l/min oil flow range of medium excavators, reducing fuel consumption while maintaining high breaking efficiency. It is particularly suitable for long-hour continuous operation in municipal, renovation, and infrastructure projects.

Heavy-Duty Reliability & Low Failure Rate

High-strength components, advanced heat treatment, and strict assembly standards ensure stable performance in harsh construction environments. The HB20G is built to withstand heavy daily use, minimizing downtime and replacement costs for end-users.

Safe & User-Friendly Design

Anti-blank firing, overload protection, and stable vibration control enhance safety for operators and equipment, especially in urban, confined, or sensitive working areas. With a noise level of 120 DB, the HB20G meets urban environmental noise requirements, supporting safe daytime construction in residential and commercial zones.

Main Application Fields & Scenarios

The HB20G open type nitrogen hydraulic breaker delivers outstanding performance in a wide range of construction scenarios that require high efficiency, reliability, and versatility. Its compact size, strong power, and stable performance make it suitable for the following major application fields:

Municipal & Public Facility Maintenance

In urban municipal projects, the HB20G excels in sidewalk and small-area road repair, breaking concrete sidewalks, curbs, and damaged asphalt for quick patch repairs. It is widely used for pipeline and cable trench excavation, crushing hardened soil and shallow rock to create narrow trenches for utility installation. For drainage system construction, it efficiently demolishes concrete drainage ditches, pipe wells, septic tanks, and clears hardened blockages. In urban greening and landscape renovation, it breaks old flower beds, retaining walls, and small concrete foundations for street lamps and billboards, supporting rapid urban upgrading and renewal.

Building Renovation & Interior Demolition

For interior and exterior wall reconstruction, the HB20G safely demolishes non-bearing walls, concrete partitions, and widens door and window openings without damaging main building structures. It is ideal for breaking bathroom and kitchen floor layers, old terraces, and floor tiles while avoiding structural damage. In small foundation demolition, it crushes equipment bases, steps, canopy foundations, and other local concrete structures. It performs exceptionally well in confined spaces such as basements, conducting local ground breaking with controlled vibration. For decoration grooving and hole construction, it cuts precise channels for pipelines with minimal vibration, protecting building integrity and safety.

Landscaping & Farmland Water Conservancy

In agricultural and landscaping projects, the HB20G breaks field boulders and shallow weathered rock for land leveling and preparation. It efficiently excavates tree pits in hard soil or soft rock, improving planting efficiency. For ditch and pond renovation, it crushes hardened ditch linings, repairs small dams, and supports the construction and maintenance of water conservancy infrastructure.

Traffic & Road Auxiliary Engineering

For highway local maintenance, the HB20G crushes guardrail foundations, damaged bridge decks, and approach slabs. Its compact size allows easy operation in narrow tunnel spaces for small-scale repair and maintenance work. In railway maintenance, it clears track bed hardened blocks, repairs drainage ditches, and supports safe and efficient railway operation.

Industrial & Commercial Sites

In factory floor renovation, the HB20G breaks old workshop concrete floors for replacement or grooving. It efficiently demolishes small production line foundations, storage tank bases, and other industrial structures, supporting factory upgrading, equipment replacement, and site reconstruction.

In all these applications, the HB20G delivers high efficiency, stable performance, and reliable operation, making it a preferred choice for global construction customers seeking durable and cost-effective hydraulic breakers.

Why Choose Guchuan Machinery HB20G Hydraulic Breaker?

As a professional hydraulic breaker manufacturer with more than 14 years of industry experience, Guchuan Machinery provides customers with reliable products and comprehensive support. We focus on continuous technological innovation and strict quality control to ensure every breaker meets international performance standards.

Our complete product range covers mini to ultra-heavy-duty models, allowing one-stop procurement for global distributors and partners. Independent R&D capabilities in auto-variable frequency and nitrogen hydraulic technology ensure our products remain competitive in the global market. We also provide customized solutions, technical support, spare parts supply, and professional after-sales service to meet diverse customer needs.

By choosing the Guchuan HB20G hydraulic breaker, customers benefit from high performance, long service life, low maintenance costs, and an excellent return on investment.

Conclusion

The HB20G open type nitrogen hydraulic breaker from Guchuan Machinery is a high-performance, reliable, and versatile demolition tool designed for 18–25 ton excavators. It integrates nitrogen energy storage technology, heavy-duty open-frame design, optimized hydraulic systems, and high-strength components to meet the diverse demands of modern construction projects.

Whether you are a global distributor, equipment rental company, or construction contractor, the HB20G will improve your work efficiency, reduce operational costs, and enhance project profitability.

Guchuan Machinery is committed to providing global customers with top-quality hydraulic breakers and professional one-stop solutions. We look forward to establishing long-term, win-win partnerships with you and contributing to the success of your projects worldwide.