Hydraulic breaker chisels play a crucial role in various industries, including construction, demolition, and mining, where they are used to break through tough materials. However, there have been claims surrounding the performance, durability, and safety of breaker chisels. Today we are talk about When a claim may or may not be made
1. prying off (not covered by compensation)
a. Any usage of the breaker chisel as a lever, oblique angle use, pulling with an excavator, etc.
The industrial method’s side stress is quite damaging to the breaker chisel.
b. The fracture will result in irregular three-dimensional angular fragments; the excavator’s main arm broke then pulling caused the chisel broken.
2. Air strike (not within the scope of compensation)
The piston powerful instantaneous impact produced cannot pass through the chisel to the rock or concrete, so the breaker the location of flat pins and chisel strong collision, resulting in the rod buckle handle broken end.
3. Unexpected hit (not covered by compensation)
Because the side hitting causes only a portion of the chisel’s tail plane to bear the high-frequency and high-energy impact of the piston, the contact surface is substantially decreased and the pressure is doubled, causing the edge of the chisel tail to be partially shattered.
4. Curling blade (not covered by compensation)
Continuous strikes in the same spot cause the chisel’s tip temperature to rise above 400 degrees Celsius, resulting in decarburization and softening of the chisel, which causes curling or even falling off.
5. The tip has been damaged (within the limits of compensation).
The hardened layer at the tip of the chisel is relatively concentrated, with a relatively high overall hardness and brittleness. When a new chisel is used for the first time, it is warmed with a low frequency and a modest force. Furthermore, the point is forcedfully inserted into the steel bar. It may also result in the tip breaking off.
6. Forging of the tip (not covered by compensation)
Excessive forging of the drill rod at random will increase the number of times the drill is impacted by the piston, increase chisel fatigue, and cause chisel damage.
7. There are contaminants on the contact surface (not covered by compensation).
This type of failure is caused by foreign items on the piston and chisel contact surfaces.
8. Crushing of tails (free claim)
The hitting surface of the piston and the chisel produces pieces due to the insufficient strength of the raw material itself.
9. Material failure resulting in a breakage (free claim)
Air bubbles or contaminants in the raw material induce the fracture. This type of fracture surface features radial fissures and is as flat as a knife cut.
10. Drill rod bending phenomenon (free claim)
Bending as a result of the manufacturer’s insufficient heat treatment. There have also been reports of users abusing the system.
11. Chisel cracking (free claim)
The raw material quality grade is relatively low. When the billet is forged, the compression ratio is insufficient or contains contaminants.