A backgauge is a mechanical system, normally attached to a brake press. Its main function is to interface with the brake press computer numerical control (CNC), moving along several different axes in order to precisely position a piece of metal for forming.1
Backgauges typically have anywhere from 1 to 6 axes of movement. Each of these individual axes is controlled by a separate electric motor. Often a brake press is sold to a customer in conjunction with a backgauge.
On an extrusion saw, a backgauge is responsible for feeding material at exact amounts past a saw blade. It is responsible for the accuracy of the piece's cut length.23
References
References
- Harris, Clare (2018-09-05). "Guide to Backgauges on a CNC Press Brake | Selmach™Machinery". Selmach™ Machinery. Retrieved 2025-08-16.
- "The Crucial Role of Press Brake Backgauge in Metal Fabrication: Improve Productivity and Quality - ADH Machine Tool". 2025-01-22. Retrieved 2025-08-16.
- "The Importance Of Press Brake Backgauges | RMT - Revolution Machine Tools™". Retrieved 2025-08-16.