Rottler Manufacturing Valve Refacing Machine VR9

Rottler's Centerless Grinding System rotates the valve stem on it's own centerline. Precision drive rollers rotate the valve stem and a pneumatic low friction steady rest support the valve stem similar to a precision balancing machine, resulting in extremely accurate valve stem to valve seat run out less than .0002" (.005mm) TIR. The Rottler Centerless System allows a wide range of valve stem diameters to be ground without changing any collets or chucks. For more information: See the VR9 Brochure or give us a call at +1 (253) 872-7050