Hammers
The CRI hammer series uses a uniquely engineered air cycle to improve hammer performance and durability, even with water injection. The valve-less design features specially configured porting to allow efficient water injection through the hammer cycle. That means a more durable hammer that drills fast wet or dry.
Drilling Application Suitability
Available Hammer Options
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Jetted Backhead |
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Center Rock’s jetted backhead is one of the simplest and most reliable on the market. Incorporated into the existing check valve system of CRI’s CR80, CR88, and CR120 hammers, the CRI jetted backhead does not require additional check valves or over-the-hammer subs that complicate your down-hole assembly. When you need extra air to keep your holes clean, the CRI jetted backhead will maintain hammer power while giving you the performance and reliability to complete your project. |
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Bit Retainer System |
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Weight–on-bit control in deep holes is always a challenge. Get it right and the risk of bit shanking is small. Get it too heavy or too light and the risk of losing a bit head in the hole is high. Center Rock offers an innovative bit retainer system for applications where the risk of bit shanking needs to be addressed. The retainer system provides a secondary means for retaining the bit head to the hammer, should the bit fatigue through the spline. |
Rock Force High Performance RF Hammer Series
9 Rock Force Hammer Models Now Available
RF40, RF50, RF55, RF60, RF65, RF80,
RF88, RF120, RF200
Waterwell/Oil & Gas/Geothermal/Mining/Blasthole/Construction
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High Performance Variable Timing DHD Cycle
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Can be easily tuned to common compressor sizes
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Reversible Casing
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Uses common QL shank styles
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American Made!
Rock Xtreme RX Hammer Series
Smaller Bit. Smaller Hammer. Bigger Impact.
Waterwell/Geothermal/Blasthole
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The unique RX6 bits are lightweight and economical but pack the strength of an 8" class shank. Additionally, the RX hammer and bit operate without a failure prone exhaust tube.
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The high frequency RX piston cycle develops very little drill string vibration giving you a smooth running hammer that is easy on your rig.
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Field testing has proven the RX hammers have a great balance of surface performance in drilling well under high heads of water.