Available from Reiloy USA
The decision to repair a screw rather than purchase a new replacement generally should be based on the:
- size of the screw.
- amount of wear on the root of the screw.
- design of the screw.
Screw repair consists of rebuilding the flights with a full width welded hard-facing to the OEM diameter specification and rechroming or renitriding the surface, if required. A properly rebuilt and polished screw can be as effective as a new one and an economical alternative to a new screw purchase.
Reiloy Westland suggests that if the design of the worn screw matches your processing needs and the root is not worn enough to alter the design, rebuilt it.