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NHMModel MARK I-II-III -Top Head Drive Swivel for Small Hydraulic Rigs

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The Economy Top Head Drive Swivel. A simplified design to adapt to small hydraulic rigs and offers an economical way to install a top head drive.

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Designed for:

  • Auger Drilling
  • Shot Hole Drilling
  • Heat Pump Drilling
  • Test Holes
  • Soil Sampling
  • Small Water Wells
  • Monitor Well Drilling

NOTE: Wedgelock connections covered by N.H.M., Inc. U.S. and foreign patent NO. 5,409,324; 5,588,772; 187552; and patent pending

MARK I ROTARY HEAD DATA:

  • Pull down capacity: 4,800 LBS
  • Pull back capacity: 4,800 LBS
  • Watercourse Standard: 1-3/16″ I.D.
  • Working pressure: 750 P.S.I.

MARK II ROTARY HEAD DATA:

  • Pull down capacity: 5,700 LBS
  • Pull back capacity: 5,700 LBS
  • Watercourse Standard: 1-3/16″ I.D.
  • Working pressure: 750 P.S.I.

MARK III ROTARY HEAD DATA:

  • Pull down capacity: 5,700 LBS
  • Pull back capacity: 9,513 LBS
  • Watercourse Standard: 1-3/16″ I.D.
  • Working pressure: 750 P.S.I.