WILDCAT Air Vibro Hammer

WILDCAT’s Back Airvibro Hammer is designed to give percussion mechanism in which the impact power is directed backwards to help free DTH Hammer and drill pipes that have jammed in the drill hole.

key Features

  • High power and frequent air vibro help the jamed hammer or pipes to be free.
  • Easy maintnence and repair.
  • Combined with Shock absorving unit.
The Back Hammer is designed to help to free a DTH hammer and drill pipes that have jammed in the drill hole. It can also be used the hammer down or withdraw casings. The Back Hammer is mounted between the rotating unit and the drill pipes or between drill pipes and the hammer. When compressed air let the check valve be opened, the piston in the back hammer starts to strike the support bar and thus the impact and return strokes of the piston in controlled by means of directional ducts in the piston and the control tube. On the impact stroke, the piston strikes the support bar which transmit the impact energy into the drill string.

The return stroke of the piston is braked by an air cushion and the air cushion chamber and the piston will move back to striking position. The exhausted air from the back hammer is expelled through the holes at the shoulder of the back hammer. For hammering down casing, the back hammer is simply mounted upside down, whereupon the impact energy is directed downwards. Wildcat Back hammer is combined with a shock absorbing unit to protect the equipment’s rotation head threads while working.

Product spec

Hammer Name Hammer O.D Hammer Length (Shoulder to Shoulder) Hammer Weight Top Sub Thread Catalog Links
5 Inch Air Vibro Hammer 4.56" (116 mm) 34.04" (864.7 mm) 113.5 lbs. (51.5 Kg) Std. 2-3/8 " API Reg Pin View
12 Inch Air Vibro Hammer 11" (272 mm) 62" (1,569 mm) 1,095 lbs. (497 Kg) Std. 3-1/2 " API Reg Pin View

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