Lapping

Lapping is the final and most critical step for achieving absolute sealing between balls and seats. We use our self-developed 360° spherical lapping machine to achieve full-surface, uniform finishing.
Our lapping delivers:
· Surface roughness as low as Ra 0.02 μm
· Correction of microscopic geometric deviations
· Perfect ball-seat pairing
· Reliable sealing verified through rigorous pressure tests
Choosing our lapping service means choosing uncompromising sealing performance.