How to Choose the Right SOOSAN Hydraulic Breaker Model

Choosing the wrong hydraulic breaker is one of the most expensive mistakes a contractor or equipment dealer can make. An undersized breaker wears out fast. An oversized one can damage the excavator's hydraulic system. Getting the match right protects your investment and maximizes productivity on every job.

This guide walks you through the four key factors that determine which SOOSAN SB or SQ Series breaker is right for your application.

The most important starting point is your excavator's operating weight (also called machine weight or service weight). SOOSAN breakers are rated for specific machine weight ranges — this ensures the breaker's impact energy is proportional to the carrier's stability and hydraulic capacity.

General weight-to-model matching:

Always verify the exact weight range in the model's technical specification sheet, as carrier configurations (long reach boom, counterweight options) can affect the actual match.

Every hydraulic breaker requires a specific oil flow rate (L/min) and working pressure (bar or MPa) from the excavator's auxiliary hydraulic circuit. If your excavator cannot supply the required flow and pressure, the breaker will underperform — or fail prematurely.

How to check:

1. Refer to your excavator's operator manual for auxiliary hydraulic specifications
2. Compare against the SOOSAN model's required flow range and pressure range
3. Ensure the excavator's relief valve setting matches the breaker's maximum working pressure

Most modern excavators in the 10–30 t class supply 80–150 L/min at 150–180 bar, which is compatible with the SB81 through SB121 range.

SOOSAN offers two main product lines, each optimized for different working environments:

The SB Series is SOOSAN's classic side-plate breaker design. It delivers high impact energy with a robust, field-proven structure. Best suited for:

• Mining and quarrying — hard rock, granite, limestone
• Road construction — breaking concrete pavement, asphalt
• Foundation demolition — reinforced concrete structures
• Open-site work — where noise level is not a constraint

The SB Series is the most widely used SOOSAN model globally and offers the best value for heavy-duty applications.

The SQ Series uses a fully enclosed box-type housing that absorbs vibration and reduces operating noise by up to 30% compared to open-body designs. Best suited for:

• Urban demolition — residential areas, city centers
• Indoor demolition — factories, warehouses, underground structures
• Night-shift work — projects with noise restrictions
• Sensitive environments — near hospitals, schools, or residential buildings

The SQ Series costs slightly more than the SB equivalent but significantly reduces operator fatigue and community complaints on urban job sites.

The hardness and type of material being broken affects both model selection and chisel type:

Avoid using a breaker on material significantly softer than its rated capacity — blank firing (the piston striking without resistance) is the leading cause of premature breaker failure.

1. Match machine weight to the model's rated carrier range
2. Verify hydraulic flow and pressure compatibility with your excavator
3. Choose SB for open/heavy-duty work, SQ for urban/noise-sensitive sites
4. Select chisel type based on working material hardness

Our technical team helps distributors and contractors worldwide match the right SOOSAN breaker to their fleet. Contact us via WhatsApp for a fast response — just share your excavator model and application, and we'll recommend the best fit.