Surestrike Principle of Operation 

The Surestrike hammer is positioned in the ready to break mode by positioning on the oversize material. The hydraulic cylinder fully extends to raise the impact weight to its highest position. The hydraulic cylinder closes, causing the weight to freefall onto the striker pin. The full energy of the weight impacts on the striker pin, breaking the oversize material. The cycle is complete and the Surestrike is ready for firing again.

The Surestrike Advantage

1. Productivity: Surestrike hammers hit much harder on each blow so the rock is broken at a much faster rate than a conventional hammer. Although the Surestrike hammers cycle at 16 – 20 times per minute, each blow hits with 4-6 times more energy than a typical hammer. This is important in large oversize rock because it is broken into good, cubical sized pieces much faster than a conventional hammer.
2. Operating Cost: Because of the recoil buffer system employed by the Surestrike hammers and the fact that they hit at one tenth the rate of a conventional hammer, little if any vibration and heat build up is sent to the wear parts and the carrier. Parts do not overheat and wear out. As an example, striker pin (bit) life of the Surestrike is generally 8 – 10 times longer than a conventional hammer bit. Vibration is greatly reduced so boom life and carrier life is vastly improved.
3. Quiet: No rapid vibration and bouncing off of the oversize rock means less noise. Noise level studies show the Surestrike hammers will lower noise levels from 5 – 10 db. Many times, the carrier or the rock hitting another rock is the loudest noise produced during the Surestrike breaking process.