Quarry Rock Breakers
Core Features of the Quarry (Q) Rock Breaker Range (RB460Q to RB1000Q)
The Q-Range breakers are defined by their uncompromising size, gargantuan impact force, and industrial-level durability necessary for continuous operation in the world's toughest environments.
1. Unrivalled Power and Scale for Primary Breaking
The primary function of the Q-Range is to perform primary size reduction on material too large or too hard for standard processing, effectively acting as a mobile primary crusher.
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Extreme Impact Energy: The energy output scales into colossal figures. The RB460Q (for 36-48T machines) delivers approximately 14,500 Joules, while the flagship RB1000Q (for 75-120T machines) reaches an immense 22,000 Joules of force. This power is essential for shattering primary rock faces and oversize boulders.
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Massive Operating Weight: These breakers are designed to match the largest excavators. The RB460Q weighs in at 4,100 kg, and the RB1000Q weighs approximately 8,500 kg. This massive weight ensures stable operation and maximum transfer of impact energy without putting excessive stress on the host machine's boom.
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Industrial Chisel Diameter: The tools feature equally large diameters (e.g., up to 210mm on the RB1000Q) forged from premium steel to prevent failure under continuous, maximum-force impact.
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High-Volume Hydraulic Demands: The Q-Range requires significantly higher oil flow and pressure (e.g., RB1000Q requires 290-350 Lpm at 180-210 Bar) to power their massive pistons, demanding sophisticated hydraulic engineering to manage heat and efficiency.

2. Advanced Technology for Production and Asset Protection
To operate reliably in high-cost, high-pressure environments, the Q-Range integrates the most advanced durability and control features as standard.
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Anti-Blank Firing (ABF): Essential for an attachment of this scale, ABF technology prevents damage to the internal power cell by halting the piston when the rock is broken, protecting the major components from costly metal-on-metal impact.
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Variable Impact Control (VIC): In this range, the Variable Impact Control (VIC) (or IC) is critical for matching the breaker's performance to varying material hardness. Operators can adjust the Impact Rate (BPM) and power output to maximise tonnage in any condition—from high-energy, low-BPM strikes on solid granite to faster strikes on more brittle rock.
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Heavy-Duty Box Design with Low Noise: The full Box Design casing offers maximum protection against dust, debris, and abrasion, which are rampant in quarry environments. Crucially, it incorporates heavy-duty dampening blocks to minimise vibration transfer back to the excavator and significantly lower acoustic output, important for regulatory compliance.
3. Ultimate Durability and Maintenance Management
The Q-Range is built for years of non-stop, intense use, with features focused on reducing maintenance downtime.
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Standard Hydraulic Auto Greasing System (AGS): Given the operational scale, the AGS is included with all Q-Range models. This system is crucial, providing precise, continuous lubrication to the chisel/bushings during operation. This prevents premature wear, the leading cause of downtime and component replacement in large hammers.
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Robust Through-Bolt Mounting: Featuring reinforced, heavy-duty through-bolt mounting, the structural integrity is maximised to hold the immense power cell assembly together against the extreme forces and vibrations inherent in primary breaking.
Purchase Advantages of the Earthquake Q-Range Breakers
The decision to acquire an RB460Q up to an RB1000Q is driven by the need for maximum production, reliability, and cost-control in industrial-scale operations.
1. Maximised Tonnage Output and Profitability
The Q-Range is a direct investment in production capacity and project execution speed.
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Crusher Optimisation: These breakers are frequently used on primary crusher static booms (pedestal booms) or as part of a face fleet to manage and reduce oversized material. By eliminating blockages and quickly sizing down boulders, they ensure a smooth, uninterrupted flow of material through the crusher, directly increasing the plant's overall tonnage output and profitability.
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Elimination of Secondary Breaking Costs: In some applications, the sheer force of the Q-Range reduces the need for secondary drilling or, in some cases, the need for blasting altogether, lowering operational complexity, regulatory hurdles, and associated costs.
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Industrial Reliability: Designed for a high duty cycle, these breakers offer the reliability needed to keep a multi-million dollar quarry or large civil site running at maximum efficiency, where unscheduled downtime is highly detrimental to the bottom line.
2. Best-in-Class Asset Protection and Control
The advanced technologies are vital for protecting the investment in both the breaker and the multi-tonne excavator.
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Host Machine Protection: The heavy dampening and vibration-absorption features protect the pins, boom, and hydraulic circuits of the high-capital 36-tonne to 120-tonne excavator from damaging shock waves, preserving the machine's operational life and resale value.
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Reduced Wear Parts Cost: The combination of ABF, VIC, and the standard AGS drastically extends the life of internal components, bushings, and chisels, turning frequent, expensive parts changes into rarer, more manageable scheduled maintenance events.
3. Comprehensive and Ready-to-Work Solution
The Q-Range is supplied as a complete, fully equipped industrial tool.
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Complete Package: Included in the purchase are the Breaker Unit, ABF, VIC, Hydraulic Auto Greasing System, Head Bracket (matched to the specific large excavator), Hoses and Fittings, Tool Box, Nitrogen Recharge Kit, 2x Chisels (Moil, Point, or Chisel), and Premium Grease. This ensures the unit is ready for the most rigorous work immediately upon delivery.
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Assured Quality: The standard 2-Year Warranty on these heavy-duty assets provides crucial financial protection and peace of mind for operators relying on the attachment for high-production, revenue-generating activities.

| Model |
Host Machine Weight Range (Tonnes) |
Approximate Operating Weight (Kg) |
Max. Approximate Impact Energy (Joules) |
Key Application Niche |
| RB460Q |
36 - 48 |
4100 |
14,500 |
Medium-Heavy Quarrying, Large Civil Rock Excavation |
| RB550Q |
45 - 65 |
5500 |
16,500 |
High-Volume Quarry Production, Severe Foundation Breaking |
| RB750Q |
65 - 85 |
6500 |
18,500 |
Heavy Mining/Quarry Primary Breaking, Massive Structure Demolition |
| RB1000Q |
75 - 120 |
8500 |
22,000 |
Extreme Duty, Static Boom Operation, Largest Primary Rock Size Reduction |
Summary of the Earthquake Quarry (Q) Breaker Line-up
The Earthquake Q-Range breakers are the powerhouse tools for extreme heavy excavation and quarrying. They combine vast impact energy with comprehensive protection and control systems, representing the highest level of attachment performance for excavators from 36 to 120 tonnes.