521 Automation Engineering Services Ltd logo high precision engraving

About 521 Automation Engineering Services Limited

Established in 1996, we supply Heidenhain linear encoders, rotary encoders, digital readout systems and CNC systems to our commercial customers. As part of our service we offer advice, maintenance and repairs of machine tools.

Our partner company, Hi-Tec Machine Services Limited is based at the same address, so as well as Heidenhain parts, you'll have access to safety guards for machine tools and CNC retrofitting services under one roof.


The construction and technical characteristics of encoder systems have changed in the last 40 years and a multitude of different linear and rotary encoders have been manufactured. That's why it's not always easy to find new parts for your devices.


We supply Heidenhain spare parts for many of the older systems and we are sometimes able to substitute newer parts onto older machines. We also service and repair older equipment to keep it working efficiently as long as possible.

Our services

For more information about our products and services, call on

0191 414 3894