Offline Activity Crane (OAC)

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Safe, reliable, economical solution to offline stand building for all rig types

The CraneSafeTM Offline Activity Crane (OAC) is a compact, fit-for-purpose derrick- or mast-mounted tool that combines X-Y travel through a trolley system and hoisting functions into a single, easily installed and managed unit.

  • Hydraulically controlled
  • Seamless make-up and break-out process reduces non-productive time
  • Capable of handling stands of drill pipe, tubing and casing ranging from 2-7/8 inches to 13-5/8 inches
  • Operates independently of drawworks and rotary activities
  • Capable of tripping more than 5 million feet of tubular in a single unit without significant down-time
  • Available only from Forum

 The OAC's simple design and self-lubricating components enable easy maintenance and lower the total cost of ownership

Technical Specifications


Safe working load 5,000 lbs (2,250 kg) or 22,000 lbs (9,979 kg) capacity
Cross and long travel side pull 1,000 lbs (453 kg)
Cross travel speed 1.64 ft/s (0.5 m/s)
Long travel speed 1.64 ft/s (0.5 m/s)
Vertical hook travel 137 ft (42 m)
Hoisting speed 3.25 ft/s (1 m/s)
Lowering speed 6.50 ft/s (2 m/s)
Electrical supply 110-120 Volts AC, 50-60 Hz and 500 Watts
Hydraulic supply 3,000 psi (210 bar) at 47 GPM (180 LPM) maximum
Certification ABS Available