Rock Breaker for Excavator

What is a Rock Breaker/Hydraulic Hammer?

It's a powerful percussion attachment mounted on the end of an excavator's arm (dipper stick). It uses hydraulic power from the excavator to drive a piston that delivers intense, rapid blows to a tool (chisel, blunt, or moil point) to break rock, concrete, asphalt, and other hard materials.

Key Components

1. Carrier (Excavator): The base machine that supplies hydraulic flow and pressure.

2. Power Unit: The hammer's internal mechanism with piston, accumulator, and valves.

3. Tool (Point/Chisel): The consumable part that contacts the material. Types include:

• Moil Point: General-purpose for rock and concrete.

• Flat Chisel: For splitting layered rock or slabs.

• Blunt (Asphalt Cutter): For pavement and asphalt with less risk of penetrating through.

4. Side/Bottom Pins & Brackets: Mount the hammer to the excavator arm.

5. Hoses & Adapters: Connect the hammer to the excavator's hydraulic system (often via a hammer kit/pipe kit).

Operational Best Practices & Safety

1. Wear PPE: Hearing protection is absolutely essential.

2. Proper Positioning: Break material perpendicularly. Never use the hammer to pry or as a lever.

3. Don't "Blank Fire": Never operate the hammer without the tool contacting the material. The energy rebounds into the hammer, causing severe damage.

4. Regular Lubrication: Use a breaker grease (high-EP, adhesive) every 2-4 hours of operation via the built-in autolube system or manually.

5. Check Tool Bushings: Excessive wear leads to poor energy transfer and damage.

6. Avoid Extreme Temperatures: Both very hot and very cold conditions require specific operational adjustments and fluids.

Applications

• Mining: Breaking oversized ore in underground or surface mines.

• Construction: Demolishing concrete for recycling, processing aggregates, or clearing hard ground.

• Demolition: Precision breaking of rock or concrete structures.