GCB60/SB40 Silence Type Hydraulic Rock Breaker – High-Impact Hammer for 4-7 Ton Excavators

Product Overview

Elevate your fleet's breaking power with the GCB60 (SB40 compatible) hydraulic hammer. Engineered specifically for mid-range carriers (4 to 7 tons), this silenced-box breaker combines brute force with precision engineering. Whether you are tackling urban demolition, trenching, or secondary breaking in quarries, the SB40 provides the reliability needed to keep your project on schedule.

Core Technical Specifications

• Chisel Diameter: 68mm (High-duty alloy)

• Carrier Weight: 4 - 7 Tons (Ideal for Mini & Midi Excavators)

• Impact Rate: 500 – 900 BPM (Adjustable frequency)

• Operating Pressure: 110 – 140 Bar

• Oil Flow Range: 40 – 70 L/min

• Material Composition: Premium 20Cr2Ni4 Forged Steel
  

Key Features & Engineering Excellence

1. Advanced Noise Suppression (Box-Type Design) The fully enclosed "Silence Box" frame not only protects the power cell from dust and debris but significantly reduces decibel levels. This makes the SB40 the perfect choice for noise-sensitive environments like residential areas, schools, and city centers.

2. Superior Material Longevity We utilize 20Cr2Ni4 alloy steel, undergoing a multi-stage heat treatment process. This ensures the cylinder and piston withstand high-intensity friction and extreme thermal stress, drastically extending the service life compared to standard carbon steel breakers.

3. Optimized Nitrogen Injection System Our proprietary Hydraulic-Nitrogen Hybrid Power system maximizes the impact energy per blow. The stable nitrogen chamber cushions the recoil, protecting your excavator’s boom and arm from excessive vibration.

4. Versatile "One-Tool" Solution Equipped with a 68mm chisel, this hammer is optimized for:

• Road Construction: Cutting through thick asphalt and reinforced concrete.

• Utility Work: Precision trenching for pipe and cable laying.

• Landscaping: Breaking up boulders and hard-packed frost.

The Guchuan Advantage: Why Partner With Us?

• Direct Manufacturer Value: Eliminate the middleman. We provide factory-direct pricing on the SB40/GCB60, ensuring you get premium quality at a competitive B2B rate.

• Global Export Expertise: With years of experience in international logistics, we handle everything from technical documentation to rapid spare parts (seal kits, bushings, tie rods) delivery.

• Customization (OEM/ODM): Need specific colors, branding, or mounting bracket dimensions? Our engineering team can customize the breaker to fit your specific market requirements.

• Reliable Warranty: Each unit is backed by a 12-month comprehensive warranty, giving your business peace of mind on every job site.