CRTi® Internal Grip Casing Running Tool

Safe. Efficient. Effective.

Volant’s CRTi® casing running tools are fully mechanical and designed for casing running or drilling on top drive equipped rigs to makeup, breakout, reciprocate, rotate, fill, circulate and cement casing and liner string. From rig up to rig down and every step along the way, the CRTi reduces non-productive time and elevates your bottom line. Its patented architecture allows control to be in the hands of the driller for further improved safety and enhanced efficiency. As the most widely used top drive casing running tool in the world, our technology is proven where the figures add up—in the real world of field operations.


  • Compact, mechanical design removes multiple people and equipment from the rig floor.
  • Incorporates multiple functions into a single service and single piece of equipment, reducing non-productive time.
  • Mechanical activation by top drive control using TAWG® torque activated wedge grip technology allows this tool to be operated by the driller.
  • Ability to rotate and reciprocate casing and liner strings reduces downhole friction.
  • Self-energized in torsion as well as hoisting to prevent slippage in either application.
  • Internal dies are designed to maximize the contact with the inside of the casing ensuring no slippage or distortion of the casing or liner.
Tool Model Grip Activation Method Rated Load Capacity Casing Sizes
Max Hoist Max. Torque
ton tonne N.m in. mm
CRTi2-4.5 Internal Standard 120 108 13,000 17,600 4.5 to 5.5 114.3 to 139.7
CRTi2-4.5HW Internal Standard 140 127 13,000 17,600 4.5 114.3
CRTi2-5.5HC225 Internal Standard or ActiveSET 225 204 25,000 33,800 5.5 to 13.38 139.7 to 339.7
CRTi3-7.0HF260 Internal Standard or ActiveSET 260 235 44,000 59,600 6.63 to 20.0 168.4 to 508.0
CRTi3-7.0HC350 Internal Standard or ActiveSET 350 317 50,000 67,700 6.63 to 20.0 168.4 to 508.0
CRTi4-7.0HF340 Internal Standard or ActiveSET 340 308 50,000 67,700 6.63 to 20.0 168.4 to 508.0
CRTi4-7.0HC475 Internal Standard or ActiveSET 475 430 50,000 67,700 6.63 to 20.0 168.4 to 508.0
CRTi2-8.63HC7501 Internal Standard or ActiveSET 750 680 85,0001 115,200 8.63 to 30.0 219.1 to 762.0
CRTi1-10.75 Internal Standard 1,250 1,133 125,000 169,400 10.75 to 38.0 273.0 to 965.2
CRTe-1.0GM5.5 External Standard or ActiveSET 500 453 40,000 54,200 3.5 to 5.5 88.9 to 139.7
CRTe-1.0GM7.75 External Standard or ActiveSET 500 453 40,000 54,200 3.5 to 7.75 88.9 to 196.9

1Higher torque up to 100,000 is possible. Contact Volant for details

Highflow CwD

  • Larger bore hole in mandrel for higher fluid flow for Casing while Drilling.

High Capacity Mandrel

  • Higher strength mandrel for higher rated hoist capacity.

ActiveSET™ Release

  • Mechanical release of latching mechanism through set-down load for faster connection makeup.

V-LOK™ Tool Joint Lock

  • Drop prevention device that is secured over the tool joint connection and helps to prevent it from breaking loose during drilling and casing running operations.

CMTi™ Inner-String Cement Tool

  • Designed to hoist the inner-string and provide a sealed flow path for cement to be delivered at the float shoe.

Mudsaver Valve

  • Installed between the casing running tool and casing seal, the Mudsaver Valve is designed to entirely stop fluid flow after fluid circulating or casing running operations.

Tether Swivel Accessory

  • A fall arrest device that tethers the casing running tool to the top drive in the event a connection backs off the casing running tool.