Small Rock Breakers

Core Features of the Earthquake RB08S to RB70S Rock Breaker Range

The Earthquake rock breakers in this size class (RB08S to RB70S) are engineered with a focus on delivering high impact energy, exceptional durability, and optimal hydraulic compatibility with mini-to-small earthmoving equipment.

1. Optimised Size-to-Power Ratio 

These breakers are specifically designed to match the hydraulic capabilities and operating weights of smaller excavators, ensuring maximum energy transfer without overloading the host machine.

• Tailored Operating Weights: The range starts with the RB08S (approx. 78 kg) for the smallest 0.7-1.2 tonne excavators, scaling up to the RB70S (approx. 375 kg) for 6-9 tonne machines. This precise weight matching is crucial for maintaining the excavator's stability and protecting its slew ring and boom from excessive stress.

• High Impact Energy: Despite their relatively compact size, these breakers deliver impressive impact energy. For example, the RB08S produces approximately 203 Joules, while the larger RB70S achieves up to 900 Joules or more. This raw power enables the breaking of dense materials like concrete, asphalt, and rock with remarkable efficiency.

2. High-Efficiency Hydraulic Design 

The breakers are built to integrate seamlessly with the host excavator's hydraulic system, which translates into superior performance and reduced wear and tear.

• Optimised Oil Flow and Pressure: Each model is calibrated to operate within the specific oil flow (Lpm) and operating pressure (Bar) ranges of its target excavator class. This calibration ensures the breaker receives the precise hydraulic power needed for peak performance, maximising the impact rate and energy per blow.

• Rapid Impact Rate (BPM): The smaller models like the RB08S and RB10S boast a high impact rate (e.g., 800-1500 Beats per Minute), which is crucial for quick demolition in confined spaces and for breaking up softer or thinner materials like concrete slabs. The sheer frequency of blows accelerates project completion times.

• Hydraulic Efficiency: The design aims to maximise the conversion of hydraulic power into kinetic energy at the chisel tip, ensuring fuel consumption is minimised relative to the work accomplished.

3. Robust Construction and Durability 

The longevity and reliability of a rock breaker are paramount in demanding applications. The Earthquake range is constructed with features to ensure maximum operational lifespan.

• High-Strength Materials: Utilisation of high-strength steel in the housing and critical internal components ensures the breaker can withstand continuous, high-intensity impact and the harsh conditions typical of demolition and quarrying.

• Advanced Internal Mechanism: The use of precision-engineered pistons and cylinders is vital. While specific details can vary, modern hydraulic hammers typically employ a robust nitrogen-assisted mechanism (often referred to as an accumulator or gas chamber) to boost impact force, reduce pressure peaks, and absorb shock from the piston's return stroke, protecting the excavator's hydraulics.

• Reduced Wear Components (Chisels): The breakers use appropriate chisel diameters (e.g., 40mm for the RB08S/RB10S, 75mm for the RB70S) designed to withstand immense force. The supply of two chisels in the purchase package immediately enhances operational readiness and reduces initial consumable costs.

4. Versatility and Application Breadth 

The compact nature of the RB08S to RB70S range, coupled with their power, makes them exceptionally versatile across a spectrum of small-to-medium projects.

• Demolition: Breaking up concrete footings, driveways, asphalt, and small reinforced structures.

• Excavation in Hard Ground: Trenching for utilities in rocky or difficult ground where buckets and rippers fail.

• Site Preparation: Resizing larger rocks encountered during foundation work or land clearing.

• Specialised Tasks: Under-house excavation, swimming pool excavation, and tight-access demolition where only mini-excavators can fit.

Purchase Advantages of the Earthquake RB Breaker Range

The decision to purchase an Earthquake rock breaker, particularly from the RB08S to RB70S range, offers several tangible benefits to businesses and operators, significantly improving return on investment (ROI) and operational flexibility.

1. Complete, Ready-to-Work Package 

A significant advantage is the all-inclusive nature of the typical purchase package, which eliminates the frustration and cost of sourcing necessary peripheral components.

• Matched Head Bracket: The breaker comes standard with a head bracket designed to match the hitch pin specifications of the customer's excavator make and model. This ensures immediate, seamless attachment compatibility.

• Hoses and Couplers: Included hydraulic hoses and quick couplers (often with options like Poppet or Flat Faced to match the machine) ensure direct connection to the excavator's auxiliary hydraulic circuit without requiring custom parts.

• Tool Box and Nitrogen Recharge Kit: The provision of a Tool Box and Nitrogen Recharge Kit is critical. Nitrogen is essential for charging the breaker's accumulator (gas chamber), which is fundamental to its operation. Having the kit on hand enables operators to maintain optimal performance and conduct routine maintenance without external service calls.

• Premium Consumables: The inclusion of two chisels, Premium Rock Breaker Grease, and a Grease Gun means the unit is ready to go out of the box, with immediate spares and the correct lubrication necessary to ensure longevity. The use of specialised rock breaker grease, formulated with compounds like Copper and Graphite, is essential for resisting high temperatures and extreme pressure, directly contributing to reduced maintenance and increased life expectancy.

2. Enhanced Operational Efficiency and Productivity 

The primary benefit is the dramatic increase in the capability and speed of challenging projects involving hard materials.

• Faster Project Completion: The high impact energy and rapid strike rate allow operators to break up stubborn materials faster than other methods, such as pneumatic tools or chemical expansion, significantly reducing project timelines and labour costs.

• Increased Versatility of Mini Machines: The RB08S to RB70S range effectively converts mini and small excavators, which are often limited to soft digging, into multi-functional powerhouses. This capability allows small-machine owners to bid on a wider range of high-value demolition and rock excavation jobs, boosting overall business revenue.

• Precise Demolition: Unlike blasting, which is often unsuitable for urban or tightly controlled sites, hydraulic breakers offer precise, controlled demolition. The smaller models are perfect for delicate work around existing structures or in confined spaces.

3. Exceptional Durability and Minimal Downtime 

Investing in a robust attachment reduces the total cost of ownership over the attachment's lifetime.

• Reduced Maintenance Costs: The durable construction and included proper lubrication package minimise the frequency of major repairs. A well-maintained breaker requires fewer spare parts and less labour-intensive fixes.

• Warranty Backing: Earthquake typically provides a competitive warranty (often 2 years), which instils confidence in the quality of the engineering and provides a safety net against manufacturing defects. This warranty is a strong indicator of the manufacturer's trust in the product's longevity.

• Operator Comfort and Machine Protection: While not explicitly a feature of all small models, good hydraulic breakers are designed to transmit most of the force to the material being broken, while a sealed chamber or dampening system absorbs residual shock and vibration. This not only improves operator comfort but crucially protects the host excavator's pins, bushings, and hydraulic pump from harmful shock loading and pressure spikes, thereby extending the machine's life.

4. Maximising Investment in Existing Equipment 

Purchasing an Earthquake rock breaker is a cost-effective alternative to buying specialised demolition equipment or subcontracting breaking work.

• High ROI: By turning idle mini-excavators into productive rock-breaking assets, the attachment quickly pays for itself through increased billable hours and the ability to charge a premium for specialised work.

• Compatibility: The breakers are designed to suit all makes and models of mini excavators within the specified weight class, making the purchase a secure investment that can be transferred if the operator upgrades or changes the brand of their host machine.

Summary of the Earthquake Rock Breaker Line-up (RB08S to RB70S)

The Earthquake RB08S to RB70S rock breaker range provides a tailored, high-performance solution for the compact and small plant market. These models are not merely accessories but essential tools that magnify the capability and revenue potential of 0.7 to 10-tonne excavators. The features—including high impact energy, machine-matched operating specifications, and robust construction—combined with the purchase advantages of an all-inclusive, ready-to-work package, clear durability benefits, and enhanced operational efficiency, make them a compelling investment for contractors and plant hire companies focused on demolition, trenching, and ground-breaking applications.

In essence, purchasing an Earthquake RB breaker in this range is a strategic business decision that converts a versatile digging tool (the excavator) into an unstoppable demolition and rock-breaking machine, ensuring projects that previously required external specialists can now be completed in-house.