Valve Refacers – Robins Machines

VR 5

Mansoor — Sun, 28 Jul 2024 04:03:12 +0000

The VR 5 bench-type valve grinding machine is designed for precise valve face and stem-end grinding in performance engine shops and cylinder-head rebuilding facilities. The machine uses a variable-speed drive and an air-operated, six-ball high-precision chuck that eliminates collets. This chuck system centers the valve stem accurately and maintains true concentricity between the valve face and stem, ensuring proper sealing and reducing heat transfer issues.

The VR 5’s rigid structure and high-speed grinding capability provide stable, repeatable results across a wide range of valve sizes. Its design supports the accuracy and surface finish requirements demanded by modern racing and high-output engine applications.

VR 10 P

Sunny — Sat, 10 Jan 2026 10:56:21 +0000

The VR 10P valve and valve-stem end grinding machine is engineered for high-accuracy valve machining in racing engine shops and cylinder-head remanufacturing. An air-operated, six-ball precision chuck eliminates collets and centers the valve stem with high repeatability. This ensures true concentricity between the valve face and stem, which directly improves sealing, heat transfer, and valve durability.

For continuous-duty operation, the VR 10P incorporates a 20-liter coolant/oil reservoir with replaceable paper filtration. The system effectively removes abrasive particles, reduces recirculated grit, and maintains stable grinding conditions. This improves surface finish quality, and maintains machining accuracy.