# Internal Components of a Hydraulic Rock Breaker
A hydraulic rock breaker, also known as a hydraulic hammer, is a powerful attachment used in construction and demolition to break through hard materials like rock and concrete. Understanding its internal components helps in maintenance, troubleshooting, and efficient operation. Below are the key internal parts of a hydraulic rock breaker:
## 1. Piston (Striking Hammer)
– The piston is the primary moving part that delivers impact force to the chisel (tool bit).
– It moves back and forth inside the cylinder under hydraulic pressure.
– Made from high-strength alloy steel to withstand repeated impacts.
## 2. Cylinder (Housing Barrel)
– The cylinder houses the piston and guides its movement.
– Contains hydraulic fluid channels that control piston motion.
– Designed to resist wear from high-pressure operation.
## 3. Accumulator (Nitrogen Gas Chamber)
– Stores pressurized nitrogen gas to absorb shock and improve efficiency.
– Helps return the piston quickly after each strike, reducing energy loss.
– Requires periodic pressure checks for optimal performance. 
## 4. Valve System (Control Mechanism)
– Directs hydraulic oil flow to move the piston forward (strike) and backward (return).
– Includes check valves, spool valves, or poppet valves depending on design.
– Ensures smooth operation by regulating pressure and flow rate.
## 5. Front Head & Tool Bush
– The front head holds the chisel in place while allowing slight movement for impact absorption.
– The tool bush reduces wear between the chisel and breaker body, often made of hardened steel or bronze.
## 6. Back Head & Seal Kits
– Seals prevent hydraulic oil leaks and maintain pressure integrity.
– Contains O-rings, gaskets, and wear rings that require regular inspection and replacement. .jpg)
## 7. Hydraulic Lines & Fittings
– High-pressure hoses supply oil from the excavator or carrier machine to the breaker.
– Quick-disconnect couplings allow easy attachment/detachment from power sources.
## 8. Chisel (Tool Bit)
– The replaceable tip that directly contacts rock or concrete during breaking operations.
– Available in various shapes (e.g., moil point, blunt, flat