SB70 Hydraulic Breaker and Spare Parts: Powerful Performance & Reliable OEM Solutions

Why Is the SB70 Hydraulic Breaker a Popular Choice?

The SB70 hydraulic breaker is a widely used hydraulic hammer for medium-size excavators, especially in rock breaking, concrete demolition, quarrying, road construction and foundation excavation.

A typical SB70 configuration is designed for approximately 16–21 ton excavators, using a 135 mm tool diameter, around 100–150 L/min oil flow, 160–180 kgf/cm² operating pressure, and approximately 350–600 BPM impact rate. These specifications give the SB70 a useful balance between powerful impact and efficient hydraulic performance.

Key Advantages of the SB70 Hydraulic Breaker

Powerful Breaking Performance.
The 135 mm chisel and stable hydraulic impact system make the SB70 hydraulic breaker suitable for demanding rock and reinforced-concrete breaking. Its impact characteristics make it useful for demolition, quarry work and general construction.

Stable and Efficient Operation.
With the correct excavator hydraulic settings, the SB70 provides consistent impact performance while maintaining a practical balance between oil flow, pressure and impact frequency.

Wide Excavator Compatibility.
Its 16–21 ton carrier class makes the SB70 suitable for many commonly used medium excavators, giving equipment owners and attachment distributors considerable flexibility.

Durable Design for Heavy-Duty Applications.
The SB70 is intended for demanding applications such as quarrying, concrete demolition, road construction, trenching and foundation excavation.

Easy Maintenance and Parts Availability.
Another major advantage is the mature spare-parts ecosystem. Wear and service components can be replaced individually, helping users maintain the breaker instead of replacing the complete unit.

SB70 Hydraulic Breaker Parts: Precision Matters

A reliable hydraulic breaker depends not only on the complete hammer but also on the quality of every internal and wear component.

Common SB70 hydraulic breaker parts include piston, cylinder, seal kit, diaphragm, piston ring, control valve/valve sleeve, front head, back head, upper and lower bush, chisel, rod pin, stop pin, through bolt, side bolt, accumulator components, charging valve and rubber dampers. Soosan's own SB-series documentation also identifies model-specific service components for the SB70, reinforcing the importance of matching parts to the exact breaker model.

Advantages of High-Quality OEM SB70 Breaker Parts

Precise Fit: Correct dimensions and tolerances help replacement components fit the SB70 breaker properly and simplify installation.

High Wear Resistance: Quality pistons, chisels, bushes, pins and bolts are designed for repeated impact and demanding operating conditions.

Stable Sealing Performance: High-quality seal kits and diaphragms help maintain hydraulic and accumulator performance while reducing the risk of leakage and pressure loss. Huilian, for example, offers an SB70-compatible HNBR diaphragm and related replacement components.

Reduced Downtime: Reliable wear parts can extend service intervals and reduce unexpected maintenance, which is particularly valuable for quarry, demolition and rental operations.

Complete Parts Supply: Instead of sourcing different components from multiple suppliers, customers can purchase complete repair and maintenance solutions for the SB70 from one source.

Guangzhou Huilian Machinery — Your SB70 Manufacturing Partner

Guangzhou Huilian Machinery Co., Ltd. manufactures hydraulic breakers and hydraulic breaker spare parts, with production capability covering complete OEM SB70 hydraulic breakers as well as replacement components.

Huilian's current product catalogue includes an OEM SB70 hydraulic breaker with a 135 mm chisel, 350–600 BPM impact rate, 160–180 bar working pressure and 100–150 L/min required oil flow. Its SB70 parts range also includes chisels, seal kits, diaphragms, pistons, piston rings, cylinders, bush sets, through bolts, side bolts, rubber pads and charging components.

With our own manufacturing factory, mature technical drawings, extensive parts database, OEM/ODM capability and strict quality control, we focus on precise matching, durable materials and consistent production quality.

Guangzhou Huilian Machinery positions itself among the top manufacturers in China's hydraulic breaker and spare-parts industry, and our SB70 solutions are developed for overseas distributors, repair workshops, contractors and equipment owners who need dependable OEM replacement options.

Looking for SB70 Hydraulic Breaker or SB70 Spare Parts?

Whether you need a complete SB70 hydraulic breaker, an SB70 piston, seal kit, diaphragm, chisel, bush, cylinder, through bolt or other replacement part, Guangzhou Huilian Machinery Co., Ltd. can provide factory-direct OEM solutions.

Send us your SB70 model, old part number, dimensions or product photos, and our team can help identify the appropriate replacement.

Guangzhou Huilian Machinery Co., Ltd. — Professional Manufacturer of Hydraulic Breakers & Spare Parts.