XK-150 Power Swivel

Swivel Tilt and 10,000 PSI Washpipe Assembly


12,000 ft-lbs and 150-ton load rating - both static and rotating.

Variable speed, zero to maximum  - Two speeds not required.

Like all our swivels, it has the simplicity of no gears. The only moving parts are the hydraulic motor, stem, and packing cartridge. Using a hollow shaft hydraulic motor, the swivel stem is driven directly by a massive lubricated spline.

Available lifting devices include elevator type bail or Cobrahook™ link hooks, which allow wire line lubricator access to the gooseneck top connection for horizontal drilling work.

RPM Readout Coming Soon - No changes to swivel, no hanging cable. Intrinsically safe.  Options include RPM on new control panel, loose RPM gage for your mounting, or just wire for attachment to your electronics.

SafeBreak Sub Breaker for breaking out subs on trailer instead of dangerous pipe wrenches.  Safe, easy, quick, and compact.

Patented 10,000 psi Washpipe Seal Assembly - 10,000 psi at Max RPM - Field reports seal life up to 2000 hours before changing seals and design underway to multiply that.  Auto-lubricated for low friction and long seal life - No greasing required. Optional at extra cost. Necessary for long reach laterals, otherwise standard 5000 psi washpipe assembly is fine.

Patented Power Tilt - Catwalk tilt angle is easily set at rigup.    Tilt then repeats to same angle throughout job.  When tilt is not in use, swivel is held in vertical position hydraulically, no rope or chain required.  Aux tilt control valve on power unit assists safe loading/unloading.

Patented SafeLatch Torque Arms - These quick-connect torque arms will soon be standard, allowing quick and safe latching/unlatching the torque arm rollers from the wire ropes.  No falling objects since no wrenches or parts removal required.

ScopeDown Torque Track coming soon.  See separately in this  website.  No rigdown labor required.  Scopes down with mast, lays down and travels with mast.  Numerous patents issued and pending.

One powered hose reel handles all hydraulic hoses.

Optional Air Brake - More brake torque than swivel torque.

Optional Parallel Torque Arms toward rear of mast - Gets wire ropes out of rig floor space.

Patented Safety Valve - Prevents downtime if someone forgets to hook up the drain hose.


SafeBreak breakout wrench - Mounted compactly to swivel rack on trailer, this unit is easily deployed to breakout subs and TIW valves.


10,000 psi Washpipe Seal Assembly

Our patented seal assembly is rated at 10,000 psi at Max RPM with minimal torque drag.  It is automatically pressure-lubricated and requires no greasing.  This is a uniquely engineered design, very different from conventional concepts using metal rings and rubber V-rings.  We have received happy field reports of up to 2000 hours before changing seals.  Nonetheless, we continue engineering and we expect seal life to improve greatly.


Swivel Tilt

XK power swivels include our patented power tilt function.  The driller easily sets the tilt angle stop at rigup to match the pipe angle in the V-door, then the swivel tilts to the same angle throughout the job when he clicks the handle forward.  Clicking to the rear position floats the pipe to vertical during pick up. When tilt is not in use, the power swivel is hydraulically held vertical for easy stab with no need for a rope or chain.  Our customers are very pleased with the safety benefits and time savings.


XK-150 Specifications

Max Torque12,000 FT-LBS
Max Speed160 RPM
Max Static Load Rating150 TONS
100 RPM Dynamic Load Rating150 TONS
Max Circulating Pressure10,000 PSI
Gooseneck Connection3" 1502 Union
Fluid Passage Bore Thru Stem2-7/16" I.D.
Standard Stem Connection4" FULL HOLE
Standard Saver Sub Connection3-1/2" I.F.
Saver Sub Makeup Torque12,500 FT-LBS
Weight2,800 LBS

XK-150 Dimensions

XK-150 Dimensions

XK-150 Power Units

XK-150 power units use a variable displacement piston-type hydraulic pump to allow any swivel speed desired.                Caterpillar engines are standard, others optional.

Electric motor power is also available if you need to plug in.

Hydraulic-powered hose reel is standard with 100 foot hydraulic hoses, and reel will accept 200 feet if required.  Axle rotates on standard high pressure Chiksan-type swivel joints, available economically anywhere in the world.  For operator safety, our hose reel control valve is located well away from the reel.  We proudly call the reel drive our ugly gear drive, so named because the slow moving open gears are flame cut, not machined, and require no lubrication.

Trailer Power Units

Our trailer power units are designed with the highest degree of roadworthiness. We use the widest tandem axles with oversize weight ratings.  Electric brakes are fitted on both axles, and the standard breakaway system locks the brakes should the trailer separate from the truck.  For best roadworthiness, all equipment is arranged on the trailer centerline.  Rugged fender tanks are arranged on each side to maximize service access on the trailer deck.  Gooseneck or bumper hitches are optional, and spare tire is included.

Skid Power Units

Rugged oilfield skids are designed for truck winching and are fully floored with diamond plate.  Oil spill containment rail is fully welded all around. Heavy-duty dual tank design uses minimum floor space, and all equipment is arranged to allow easiest access for service.  Heavy bumpers are standard on both ends.  Offshore skids are built with overhead crane lifting frames, seal welding throughout, and special salt air paint systems.

Helicopter-transportable dual-skid units are available if required.

Air Remote Controls

Air remote controls are connected by a 50-foot control hose umbilical. Stainless control panel features liquid-filled torque gauge, single handle control for variable speed & direction, auto-throttle, and power tilt.  Also included are engine kill (fuel shutoff), emergency engine kill (air shutoff), plus torque release control which allows controllable unwind of the drill string before picking up.  Emergency engine kill is also located at the engine.

Torque Box

Stainless control box for setting maximum torque is mounted on each unit near the pump with the same torque gauge as the main panel.

If your preset max torque is reached, rotation will stop and torque will be held.

Torque setting instructions are etched on front panel of the box.

Torque Box


Two telescoping torque arms are included with every unit, and several length ranges are available.  Four oil-impregnated nylon sheaves roll up and down wire ropes stretched between crown and floor.  Safety cables protect rig floor from falling objects.  Optional parallel torque arms are arranged toward the back of the mast.

Also optionally, our patented top drive torque track can be fitted to the XK-150 power swivel with links and elevator.