All Star Feed Screws will manufacture new and rebuilt screws up to 4.5 inches in diameter.

Special shanks, splines, keyways and mixing pins are supplied to meet customer requirements.

 

Base materials include 4140HT, 4340HT, alloy steel, tool steel, stainless steel, nitralloy, Inconel and many others. Hardening on screw flights may be done by flame hardening or hard facing such as stellite 1, 12, 6 or colmomoys 56, 57, 83.

 

Corrosion protection may be provided by ion nitriding, nitriding, chrome or nickel plating or other coating to suit customer needs.