screw-cutting lathe is a machine (specifically, a lathe) capable of cutting very accurate screw threads via single-point screw-cutting, which is the process of guiding the linear motion of the tool bit in a precisely known ratio to the rotating motion of the workpiece. This is accomplished by gearing the leadscrew (which drives the tool bit’s movement) to the spindle with a certain gear ratio for each thread pitch. Every degree of spindle rotation is matched by a certain distance of linear tool travel, depending on the desired thread pitch (English or metric, fine or coarse, etc.).

Machines we use:

  • Colchester Electronic Triumph CNC Lathe – able to turn complicated shapes that would not be able to be made on a manual lathe, also can do automatic screw cutting
  • Harrision Centre Lathe 

  • Colchester Triumph 2000

We can turn up to 59″ long x 9/12″ o/d and turn 22″ o/d x 4″ for flanges.