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Tel: 86-18127591702

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How to Choose the Right Excavator Ripper Arm for Hard Rock Excavation

2025-06-06

1, Ripper Arm vs Breaker: Why Contractors Switch

Performance Comparison

Metric	Ripper Arm	Breaker
Efficiency	35-40 tons/hr	22-25 tons/hr
Maintenance	Every 500hrs	Every 200hrs
Downtime	<2%	8-10%
Noise Level	85dB	105dB

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Case Study:
Quarry in Vietnam achieved 60% productivity increase after switching from breakers to our ripper arms

2. Key Technical Specifications

Arm Body: HG785/Q550D steel (12-25mm thickness)
Shank Tip: Tungsten carbide inserts
Cylinders: 45# steel with chrome plating

Pro Tip: Look for boring-after-welding manufacturing for perfect alignment

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3. Custom Configuration Process

Step-by-Step Manufacturing:

3D Simulation (Finite Element Analysis)
Laser Cutting (±0.5mm precision)
Submerged Arc Welding (SAW process)
Stress Relieving (600°C heat treatment)
Final Assembly (7-pin locking system)

Standard Package Includes:

Main arm + boom assembly
7 hardened pins (42CrMo alloy)
4 high-pressure hoses
Ripper shank (replaceable tip)

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4. On-Site Advantages

Operational Benefits:
✔ Inverted Cylinder Design - 30% fewer seal failures
✔ Concrete-Filled Arms - 15% greater structural integrity
✔ Oversized Protection Covers - 2X cylinder lifespan

Project Compatibility:

Quarry face preparation
Trenching in shale layers
Road cut through bedrock
Boulder fragmentation

5. Get Your Custom Solution

Answer 3 Questions for Instant Quote:

Machine model/weight? ______
Primary rock type? [▢ Granite ▢ Basalt ▢ Sandstone]
Required daily output? ______ tons

Expert Support:

Kaiping Zhonghe Machinery Manufacturing Co., Ltd

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sophia@excavatorboomarm.com 86-18127591702

Cuishanhu New District, Kaiping City, Jiangmen City, Guangdong Province, China

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