SpinCat Downhole Wash Tools

StoneAge SpinCat™

Downhole Tools

StoneAge SpinCat™ tools provide a durable, controlled rotation solution for well intervention

A viscous fluid governor controls rotation speed to maximize jet power delivered to the tubing walls. By using only a few rotating jets, each jet is bigger to convey hard-hitting power. Replaceable jets are efficient and clean recesses and irregular surfaces without damaging the well pipe. Over thirty years of waterjet engineering back the StoneAge SpinCat™ design, setting the standard for rotary nozzle performance and durability.

How it works

The StoneAge SpinCat™ is an extremely durable self-rotating nozzle for well service applications. The powerful rotating jet design is engineered to maximize the limited hydraulic horsepower available to the BHA at the end of a long CT or workstring. Jet reaction force powers rotation of the head and an internal centrifugal speed control mechanism maintains rotation speeds.


The standard nozzle head has five ports with 1/8 NPT threads — one at 15 degrees forward, two at 45 degrees forward, and two at 90 degrees to the axis of rotation. Some of the ports may be plugged in a balanced pattern to concentrate the flow in a particular direction. Fit-for-purpose head and porting designs are available to accommodate specific flow rates and applications.


StoneAge SpinCat™ tools have a straight flow-through design with a leak-free high pressure seal, so pump power is not wasted. The tools can be used at temperatures up to 200°C, with up to 30% HCL and Nitrogen injection.

Hard-Hitting Cleaning Power

Cut through paraffin, asphaltine, hydrates, calcium carbonate, barium sulphate or mineral scale with ease.