MARK I-II-III

MARK I-II-IIInhm_catalog_45

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.

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.