Core Features of the Medium Earthquake SX Rock Breaker Range (RB110SX to RB200SX)

The RB-SX range is defined by a significant leap in power, durability, and technological integration compared to their smaller counterparts. They are built for consistent, high-output performance in demanding industrial and commercial applications.

1. High-Performance Energy Delivery for Heavy Duty Work

These medium-class breakers are designed to deliver substantial impact energy, making them ideal for materials that would halt smaller hammers.

• Massive Impact Energy: The power scales dramatically in this range. For instance, the RB110SX (for 9-12T excavators) delivers approximately 1300 Joules, while the RB200SX (for 18-22T excavators) boasts an impressive impact energy of around 3555 Joules. This sheer force is necessary to fracture large volumes of hard rock and heavily reinforced concrete.
• Matched Operating Weights: The breakers are precisely weighted to suit the stability and lift capacity of medium excavators (e.g., RB110SX at 571 kg, RB200SX at 1500 kg). This ensures balanced operation, maximising impact efficiency while safeguarding the excavator’s boom and dipper arms from excessive strain.
• Powerful Hydraulic Synergy: The models operate with substantially higher oil flow rates (Lpm) and operating pressures (Bar) matched to the larger auxiliary circuits of medium excavators. This hydraulic synchronisation guarantees the rapid piston cycling needed for sustained, effective breaking.

2. Advanced Design and Structural Durability

The intense, sustained nature of medium-scale breaking demands superior material science and engineering features to ensure longevity and low maintenance.

• Strengthened Through-Bolt Mounting: The design incorporates reinforced through-bolt mounting, a crucial structural feature that increases the maintenance intervals and overall longevity of the power cell. This enhanced structural integrity allows the breaker to endure constant high-recoil forces.
• Box Design Casing (Noise Reduction): Many medium-sized breakers are housed in a fully enclosed, Box Design casing. This serves a dual purpose: it offers superior protection to the internal power cell from debris and foreign objects, and more importantly, it incorporates a vibration-dampening block to significantly minimise noise output. This is a critical feature for compliance on urban construction sites and for protecting operator health.
• Advanced Anti-Blank Firing (ABF) Technology: High-end models like the RB200SX feature an Anti-Blank Firing (ABF) mechanism. This technology automatically stops the operation of the piston when the material is broken and the chisel no longer has resistance. ABF is vital for protecting the internal components from damage caused by piston-on-piston contact, thereby extending the life of the breaker and its parts.

3. Impact Control (IC) Feature for Versatility (SX Models)

The "SX" designation often denotes advanced features, and some medium models offer a crucial advantage through Impact Control (IC).

• Variable Blow Rate and Power: IC allows the operator to dynamically adjust the BPM (Beats per Minute) and power output. This is a game-changer for versatility:
• Soft/Stratified Rock: High BPM with lower power for faster, less jarring breaking.
• Hard Rock/Mass Concrete: Lower BPM with higher power for maximum penetration and fracture.
• Optimal Efficiency: This control enables the operator to always use the most efficient setting for the material at hand, maximising material processing speed and reducing unnecessary wear and tear on both the breaker and the chisel.

Purchase Advantages of the Earthquake RB-SX Breaker Range

For companies operating 9-22 tonne excavators, investing in the RB110SX, RB140SX, or RB200SX offers compelling economic and operational advantages that directly impact project profitability and scheduling.

1. High Production and Increased Job Scope

The core advantage is the ability to handle high-volume, high-density materials consistently, which translates directly into higher-margin work.

• Primary Breaking Capability: These breakers are powerful enough to be used for primary rock excavation, replacing the need for blasting in many situations or rapidly processing overburden in small quarrying or road construction environments.
• Processing Heavy Reinforced Concrete: Their superior impact energy and robust chisel diameters enable efficient breakdown of massive or heavily reinforced concrete structures (e.g., bridge decks, multi-storey building foundations) that smaller breakers cannot effectively manage.
• Reliability in Continuous Operation: Designed for sustained use in commercial settings, the RB-SX models ensure that project timelines are met consistently, reducing the risk of penalties associated with project delays.

2. Significant Reduction in Total Cost of Ownership (TCO)

Features focused on durability and maintenance directly contribute to a lower TCO over the attachment's lifetime.

• Inclusion of Automatic Greasing System: For medium-to-large breakers like the RB200SX, the package often includes an Auto Greasing System. Continuous, automatic lubrication of the bushings and tools while the breaker is running is crucial for high-impact attachments. It vastly reduces wear-related failures, minimises manual maintenance time, and ensures the breaker is always operating under optimal conditions.
• Protection of Host Machine: Advanced features like ABF and superior dampening technology ensure that damaging shock waves are managed internally, preventing excessive vibration and stress from being transferred back to the excavator's hydraulic pump, pins, and boom structure. This protects a multi-hundred-thousand-dollar asset (the excavator) from premature wear.
• Comprehensive Standard Package: As with the small range, the medium breakers come as a complete, ready-to-work unit, including the Head Bracket (matched to the machine), Hoses and Couplers, Tool Box, Nitrogen Recharge Kit, 2x Chisels, and Premium Rock Breaker Grease. This complete setup eliminates hidden start-up costs and allows for immediate deployment.

3. Compliance and Operator Welfare

Features that address noise and vibration are increasingly important for regulatory compliance and staffing.

• Mitigating Noise Pollution: The enclosed Box Design significantly reduces the acoustic impact of the breaker, making these units much more suitable for projects in urban or residential areas where noise pollution is a major concern. This allows for extended operating hours compared to noisier, open-frame models.
• Improved Ergonomics: Reduced vibration transmitted through the excavator not only protects the machine but significantly improves operator comfort and safety. Minimising Whole-Body Vibration (WBV) is a vital consideration for regulatory compliance and retaining skilled operators on long shifts.

4. Maximising Fleet Utilisation and Fleet Versatility

The RB-SX range enhances the overall utility and efficiency of a medium-sized equipment fleet.

• High-Value Specialisation: Owning these breakers allows a medium excavator to perform specialised, high-demand work previously reserved for heavy equipment or external contractors, enabling the company to internalise a greater share of project revenue.
• Robust Warranty and Support: The 2-Year Warranty provided is an essential purchase advantage, reflecting the manufacturer's commitment to the quality and reliability necessary for industrial-grade tools and providing essential peace of mind for such a significant investment.

Summary of the Earthquake Medium SX Rock Breaker Line-up

The Earthquake RB110SX, RB140SX, and RB200SX models are professional-grade hydraulic hammers designed for the rigours of medium-to-heavy demolition and rock excavation. They are defined by their superior impact energy, advanced protective and control features (ABF, IC, Box Casing), and a comprehensive purchase package that prioritises immediate, high-output production and long-term durability. For businesses running 9-22 tonne excavators, this range is the essential tool for turning challenging, hard-material jobs into profitable, efficiently managed projects.