GRINDING

In-house grinding is a Tri Part distinction. We provide O.D., thru-feed, and in-feed grinding. Our state-of-the-art Studer CNC O.D. Grinders are equipped with in process gauging and automatic offsetting. 3-2-1-0: Our typical in- house grinding tolerances:

3.  .0002 inch diameter
2.  .0002 inch circularity
1.  .0001/1.00 inch straightness
0.  Zero shaft lead (Ref. SAE J946 – Application Guide to Radial Lip Seals)

We provide a wide range of micro-finishes from Ra 32 through superior micro-finishes of Ra 2. Tri Part has the capability to analyze over 20 surface finish parameters to meet tight tolerance requirements.

Production Equipment

(1) Studer S33 6.9″ x 25.6″ CNC O.D. Grinder with in process gauging & automatic offsetting

(1) Studer Favorit 6.9″ x 25.6″ CNC O.D. Grinder with in process gauging & automatic offsetting

(2) #2 Cincinnati Centerless OM Grinder

(1) Norton 6″ x 18″ Automatic O.D. Grinder

(1) Spiration Roto-Finish ST-4 4 cubic foot vibratory tumbler

(1) Vibetech VT3816 4 cubic foot vibratory tumbler