XK-150 Power Swivel

Swivel Tilt and 10,000 PSI Washpipe Assembly

XK-150 for Heavier Jobs

For deeper, heavier jobs we offer the XK-150 with 12,000 ft-lbs and a 150-ton rating.  It was launched In 1999 with the simplicity of no gears.

The only moving parts are the hydraulic motor, stem, and packing cartridge. Using a 5000 psi piston-type, 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.

By 2008, with its high tonnage and torque rating, it had become the high torque favorite of well servicers around the world.

Unique features include power tilt, 10,000 psi washpipe seal assembly, powered hose reel which handles hydraulic hoses, and optional brake.

It also includes our patented safety valve which prevents downtime from blown shaft seals if someone forgets to hook up the drain hose.

20 years in the field - 3rd generation design,  same compact size.

Variable speed, zero to maximum  - 2 speeds not required.

12,000 ft-lbs torque - Higher than connection rating.

150 ton static and rotating load ratings.

Patented 10,000 psi Washpipe Seal Assembly - Auto-lubricated - Unique design for low friction and long seal life.

Patented Power Tilt - Tilt angle easily set at rigup - repeats throughout job.  Automatically holds vertical when tilt not in use.  Local control valve for safe loading/unloading is on power unit swivel rack.

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

Only four hydraulic hoses required - All on one powered hose reel.

Optional Brake - Higher torque capacity than swivel output.

High-Pressure Seal Assembly

Our patented seal assembly is rated at 10,000 psi.  It is automatically pressure-lubricated and requires no manual greasing.  Quite different than other sealing concepts, this is a uniquely engineered approach.
Our seal assembly has been lab tested at 7,500 psi for 1,000 hours, and seals looked good.  But lab testing is not field testing, and after two years in the field, reports are at 1200 hours seal life.  The next generation of improvement parts have already been installed in all units in the field but we have no data yet.  Two more big interchangeable improvements are almost ready and will be installed on every new unit.  We expect seal life to continue to improve.


Swivel Tilt

XK power swivels include our patented power tilt function.                             Our customers are very pleased with the safety benefits and time savings.  The driller easily sets the max tilt angle at rigup to match the pipe angle in the V-door, then the tilt stops at the same angle during the job.  When tilt is not in use, the power swivel is automatically held in the vertical position without rope or chain.


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.

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 hydraulic 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. Fully 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 can also be  operated 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 on the main panel.

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.