SEWOOMIC SB70 Side Type Hydraulic Breaker

Engineered Power, Refined Silence for 18–26 Ton Excavators

In today’s competitive construction and mining industries, selecting the right hydraulic breaker attachment is critical for productivity, durability, and operating cost control. At SEWOOMIC, we combine proven global design benchmarks with continuous engineering improvements to deliver high-performance breaker solutions.

The SB70 Side Type Hydraulic Breaker is a flagship model designed for 18–26 ton excavators, offering an optimal balance of impact energy, structural durability, and noise control. Built as a premium alternative to leading Korean and Japanese breaker designs, it is widely recognized as a reliable side type hydraulic breaker attachment for demanding job sites.

Product Overview

The SEWOOMIC SB70 is a side-mounted nitrogen-assisted hydraulic breaker, specifically engineered for mid-to-heavy class excavators. It integrates advanced piston dynamics, optimized nitrogen chamber design, and reinforced structure to ensure consistent impact performance even under continuous operation.

This model is frequently used as both an 18ton excavator breaker attachment and a 26 ton excavator rock breaker, making it one of the most versatile solutions in its class.

Key Specifications

• Suitable Excavator: 18–26 Tons
• Operating Weight: 1650 Kgs
• Tool Diameter: 135 mm
• Impact Energy: 3423 Joules
• Impact Rate: 350–500 bpm
• Required Oil Flow: 100–150 L/min
• Operating Pressure: 160–180 Bar
• Setting Pressure: 210–230 Bar
• Hose Diameter: 1 Inch
• Noise Level: 120 dB

Advanced Design & Working Principle

The SB70 adopts a gas-assisted hydraulic impact system, where hydraulic energy is amplified by compressed nitrogen. This hybrid system enhances striking force while reducing energy loss, making it more efficient than traditional hydraulic-only systems.

Core Advantages of Nitrogen-Assisted System:

• Higher impact energy output with lower oil consumption
• Improved rebound efficiency for faster cycle times
• Reduced internal stress, extending service life

This makes the SB70 an excellent excavator side type hydraulic breaker for continuous heavy-duty operations such as quarrying and demolition.

Structural Features & Engineering Highlights

1. Reinforced Side-Type Housing

The side type hydraulic breaker hammer design offers:

• Easier maintenance access
• Better protection for internal components
• Lower manufacturing cost without compromising strength

2. Optimized Cylinder & Seal System

One of SEWOOMIC’s core R&D focuses is solving common industry issues such as oil leakage. The SB70 features:

• Enhanced sealing structure
• Precision-machined cylinder tolerances
• Improved heat resistance for long working cycles

3. High-Strength Alloy Steel Components

• Heat-treated chisel and piston for wear resistance
• Durable front head to withstand extreme impact loads

4. Noise Reduction Engineering

Although categorized as a side-type breaker, the SB70 incorporates noise-dampening design elements to reduce vibration and sound transmission, making it suitable for urban construction environments.

Application Scenarios

The SB70 is widely used across multiple industries due to its versatility:

Construction & Demolition

• Concrete breaking
• Foundation removal
• Urban renovation projects

Mining & Quarrying

• Rock fragmentation
• Secondary breaking
• Ore extraction support

Infrastructure Projects

• Road construction
• Bridge demolition
• Tunnel excavation

Whether deployed as an 18ton excavator breaker attachment or a 26 ton excavator rock breaker, the SB70 consistently delivers reliable performance in harsh conditions.

Compatible Excavators

The SB70 is compatible with major global excavator brands, including:

• Cater-pillar
• Komatsu
• Hyundai
• Doosan
• Hitachi
• Vol-vo

Its flexible configuration makes it an ideal side type hydraulic breaker attachment for fleet operators managing mixed equipment brands.

Performance Advantages Over Standard Market Models

Compared with conventional breakers in the same class, the SB70 offers:

• Higher impact efficiency with optimized nitrogen chamber
• Lower failure rate due to improved sealing technology
• Better cost-performance ratio compared to premium brands
• Enhanced durability through upgraded materials and structure
• Reduced maintenance downtime

Why Choose SEWOOMIC?

At Guchuan Machinery (SEWOOMIC brand), we don’t just replicate industry standards—we refine them.

Our SB70 breaker is developed based on benchmarking leading models from Korea, Japan, and Europe, while addressing real-world user pain points such as:

• Oil leakage
• Seal wear
• Inconsistent impact performance

Through continuous innovation, we deliver products that match global quality while offering superior value.

Conclusion

The SEWOOMIC SB70 Side Type Hydraulic Breaker is a powerful, durable, and cost-efficient solution tailored for 18–26 ton excavators. With its advanced nitrogen-assisted system, reinforced structure, and optimized sealing technology, it stands out as a reliable choice for contractors seeking long-term performance and reduced operating costs.

If you are looking for a high-quality side type hydraulic breaker hammer that combines global-standard performance with competitive pricing, the SB70 is your ideal solution.