Metal & Valve Ball Grinding Polishing Machines

NANSEN manufactures precision industrial grinding and polishing machines engineered specifically for high-accuracy spherical components, including bearing steel balls, hard seal valve balls, and ceramic spheres. Our equipment delivers extreme sphericity (Grade 10 / Grade 5) and mirror surface roughness down to Ra ≤ 0.05 μm.

Sphere Lapping & Valve Ball Finishing

Our ball finishing machinery encompasses both multi-groove horizontal lapping plates for batch precision ball processing (GM 800 Series) and specialized hard-seal valve ball grinding centers. Using micro-abrasive compounding and rigid spindle designs, our systems eliminate out-of-roundness and tooling chatter on stainless steel, cobalt alloy, and tungsten carbide spheres.

Automated Lapping & Surface Consistency

Equipped with variable-frequency drive controls, pneumatic pressure loading, and automatic slurry recirculation, NANSEN ball finishing machines ensure consistent batch-to-batch quality across automotive bearing, fluid control, and aerospace valve production. Contact NANSEN for process recommendations and sample testing.