Valve Grinder Machine
The valve grinder machines in this line are built for engine rebuilding shops that need to grind intake and exhaust valves with precise angle control and professional finish. The line includes two models: a single-wheel unit with a variable-speed valve spindle and five adjustable inclination angles, and a double-wheel unit that also grinds valve tips, tappets, and rocker arms in the same machine. Both models use interchangeable collets to cover different stem diameters. Check the technical datasheet of each model to find the right fit for your application.
Specifications subject to change without notice. Some capacities listed may require optional accessories depending on the model. Refer to each unit's technical datasheet for exact dimensions and limitations.
Frequently asked questions
What does a valve grinder machine do and when is it needed?
A valve grinder machine reconditions the seating face of combustion engine valves by removing wear, burn marks, and irregularities from the valve face. It is required during cylinder head overhauls when a valve fails to seal properly, causing compression loss. The process restores the precise contact angle between the valve and its seat, bringing the engine back to original sealing performance without replacing the parts.
What is the difference between the single-wheel and double-wheel models?
The single-wheel model (RVX-B) focuses on valve face grinding with variable speed from 30 to 300 RPM and five adjustable inclination angles (15°, 20°, 30°, 45°, and 60°), making it ideal for shops that need angle versatility. The double-wheel model (RV-2) uses two separate wheels — one for the valve face and one for valve tips, tappets, and rocker arms — allowing more parts to be serviced on the same machine without swapping wheels.
What valve diameter range does each model handle?
The RVX-B grinds valves with head diameters from Ø0.8 to 3.5 inches (Ø20–90mm), with five collets covering stems from Ø0.16 to 0.49 inches (Ø4–12.5mm). The RV-2 is focused on stems from Ø0.20 to 0.49 inches (Ø5.0–12.5mm), with a 5-inch (127mm) wheel for the valve face and a 4-inch (101.6mm) wheel for tips, tappets, and rocker arms. Check the technical datasheet of each model to confirm compatibility with your parts.
Are these machines suitable for motorcycle, car, and truck valves?
Yes. Both models use interchangeable collets covering different stem diameters, serving valves from motorcycles, passenger cars, trucks, and agricultural machinery engines. The RVX-B, with head capacity up to Ø3.5 inches (Ø90mm), is particularly suited for larger valves found in truck diesel and tractor engines. Verify in each model's datasheet that your valve dimensions fall within the covered range.
How do I request a quote or technical support for Chinelatto valve grinder machines?
Contact Chinelatto through the website contact form, phone, or email, specifying the model you are interested in (RVX-B or RV-2), the power supply available in your shop (110V, 220V single-phase, or 220V three-phase), and the type of engine you service. The technical team will recommend the most suitable model and provide lead times, spare parts availability, and accessory options.
Specifications subject to change without notice. Some capacities listed may require optional accessories depending on the model. Refer to each unit's technical datasheet for exact dimensions and limitations.