SB30 Silent Box-Type Nitrogen Hydraulic Breaker with 406 Joules Impact Energy and 109 dB Noise Level for 2.5-4.5 Ton Excavators

Jiangsu Guchuan Machinery Co., Ltd., founded in 2010, is a premier manufacturer of high-quality hydraulic breakers serving the global B2B construction equipment market. Located in Changzhou, China, our 18,000 square meter facility houses over 110 skilled professionals dedicated to hydraulic breaker manufacturing.

Our commitment to excellence is certified through our status as a recognized high-tech enterprise in China, holding 3 invention patents, 23 utility model patents, and 15 intellectual property rights. In 2019, we achieved a significant milestone with the successful development of our proprietary auto-frequency variable hydraulic breaker technology.

The SB30/GCB50 is designed for excavators in the 2.5 to 4.5-ton class, making it the ideal partner for compact excavators used in urban and suburban environments.

The SB30/GCB50 features a fully enclosed bracket system that encases the breaker's main body, providing multiple critical functions:

• Noise Attenuation: The enclosed structure acts as a sound-dampening barrier, significantly reducing operational noise levels to 109 dB
• Dust Containment: The box-type design helps contain dust and debris generated during operation
• Vibration Damping: The enclosed bracket incorporates damping modules that protect internal components from excessive vibration

The breaker utilizes compressed nitrogen gas as a return spring mechanism, offering several advantages:

• Consistent Impact Energy: Nitrogen maintains stable pressure across varying operational conditions
• Reduced Hydraulic Demand: The gas-assisted return reduces hydraulic flow requirements
• Lower Operating Temperatures: Efficient energy transfer means less heat generation

• Sidewalk and pavement repair with precise 53mm tool diameter
• Utility trenching and cable installation in confined spaces
• Drainage system maintenance and concrete structure repair
• Landscape renovation in noise-sensitive public spaces

• Non-load-bearing wall removal with precision control
• Floor and tile removal without damaging structural slabs
• Concrete slab cutting for plumbing, electrical, and HVAC installations

• Rock breaking for land clearing and agricultural development
• Pond and trench excavation through hardened layers
• Agricultural infrastructure repair including irrigation systems

• Highway and bridge repair with precision pavement removal
• Tunnel maintenance in confined, noise-restricted environments
• Railway infrastructure work near active tracks

• Factory floor modification and equipment foundation removal
• Equipment demolition support near operational machinery
• Concrete removal for site redevelopment projects