Surface grinding machine VSK

for conical valve seatportablemobile

Transportable valve grinding machine conical seats The portable VSK valve grinding machine from EFCO is the ideal solution for precise machining of conical sealing surfaces in high-pressure, shut-off, and control valves. With its compact design and low weight, it is perfectly suited for mobile use on site. Covering a working range from DN 8 to DN 300 (¼"–12"), the VSK is capable of handling a wide variety of valve sizes. The machine is easy to operate and allows for central alignment using centering cones or a crown clamping chuck. Adjustable tool pressure ensures optimal grinding results, while low-wear components and a high-torque drive motor provide long service life and efficiency. The VSK is available with different drives: electric (230/120 V, 50/60 Hz), pneumatic (6–7 bar), or battery-powered (18 V DC). Standard seat angles that can be machined include 30° (2x15°), 40° (2x20°), 60° (2x30°), 75° (2x37.5°), and 90° (2x45°); other angles are available on request. The VSK series includes various models tailored to specific nominal diameters, ensuring the best fit for a wide range of applications. Whether in power plants, refineries, the chemical industry, or on ships—wherever quick valve repairs and cost-effectiveness are needed—the VSK proves its worth. With an attractive price-performance ratio and the option for rental, it offers a flexible and economical solution for valve maintenance.