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Choose A StraightLine RockEye Hammer System that Meets Your Needs

The table below provides basic specifications of each of our hammer models. The table is intended as a guideline for selecting the model that’s right for your application. When using the table, keep in mind that additional factors, such as product to be installed, ground conditions, bore length, drill rig model, air compressor specifications and other variables, are important selection considerations. Call a StraightLine hammer expert at 1-800-654-3484 for detailed assistance in selecting the right air hammer system for your needs.

  - All New! -AH3.0 Air Hammer AH4.0 Air Hammer AH5.0 Air Hammer AH6.0 Air Hammer
Hammer Body Diameter 3.625 in 4.600 in 5.500 in
Piston Weight 20 lbs 30 lbs 43 lbs
Standard Bit 4.750 in 5.750 in 7.000 in
Optional Bit 5.125 in 6.000 in 7.500 in
Minimum Recommended Compressor Supply 400-cfm/200-psi 700-cfm/300-psi 900-cfm/350-psi
Standard Drill Pipe Tool Joint Diameters 1.625 in to 2.625 in 2.625 in to 3.625 in 3.625 in to 5.000 in
Maximum Recommended Tool Joint Diameter 3.250 in 4.125 in 5.750 in
Recommended Drill Rig Thrust/Pull 10,000 to 33,000 lbs 24,000 to 80,000 lbs 50,000 to 120,000 lbs
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3" Support Pack

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4", 5", 6" Support Pack

All RockEye Hammer Systems Feature:

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Support Pack

The Support Pack is central to the operation of the Air Hammer system; it controls the air flow from the compressor to the hammer and it introduces the water/lubricant mixture into the airstream at the predetermined volume (GPM).

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Downhole Assembly

The complete down hole assembly includes: Bit, Air hammer, Bent Sub, Transmitter housing, Shock absorbing transmitter assembly, & Drill pipe adapter. StraightLine® has taken special care to isolate the transmitter/beacon from the hammering action. In the illustration below you will see that the transmitter/beacon is fitted into the inner sleeve and is then slid into the outer sleeve with low compression springs on both ends which effectively isolates the transmitter/beacon from the hammering action.

Downhole Assembly Detail »

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Control Box

The complete down hole assembly includes: Bit, Air hammer, Bent Sub, Transmitter housing, Shock absorbing transmitter assembly, & Drill pipe adapter. StraightLine® has taken special care to isolate the transmitter/beacon from the hammering action. In the illustration below you will see that the transmitter/beacon is fitted into the inner sleeve and is then slid into the outer sleeve with low compression springs on both ends which effectively isolates the transmitter/beacon from the hammering action.

Control Box Detail »

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Steering Points

The air hammer down hole assembly features a precise steering geometry. The steering points are 1) the bit and 2) the convex side of the bent sub. The assembly steers by reacting off of the front and rear steering points while rotating between two clock positions. These steering points are identified in the accompanying illustration.

Steering Points Detail »

The Complete RockEye Hammer System is Packaged With:

Support Pack, Control Box, Downhole Assembly, and Breakout Wrench Kit