Rebuilding:
The purpose of a rebuild is be bring the machine back to an as new condition with the same level of control and electrics. This involves restoring a machine its "as good as when it was new" condition by replacing all bearing and seals and inspection of all components. Major defective parts are reviewed with the customer and replaced at additional cost to restore the machine to its original mechanical specifications and operating condition. The electrical components on the machine and the electrical panel are inspected and replaced as necessary.
Remanufacturing:
This process involves taking a "manual" machine, adding a CNC control and updating the electrical components, as well as performing a complete machine rebuild from the base up. This machine typically does not currently have or never has had a modern CNC control on it.
Retrofitting:
This involves installing or replacing the existing NC or CNC control and, if necessary, servo drives and motors on machines that currently have servo axis drives. This machine currently has as NC or CNC control. This scope does not include mechanical rebuild.