 Raj’s has long experience in all types of Ball – Seat’s grinding & Lapping. Up to Dia 1400 mm ( 1.4 Meter) We have been grinding & lapping solutions for “100% ZERO LEAKAGE – ISO 5208” (Leak rate “A”). Interchange ability possible with seats. With our technically sophisticated process you can achieve zero leakage and good result - cost-effectively.  Raj grinding & lapping’s process are designed for manufacturing of metal seated balls of high precision valves. Balls up to Dia. 1400mm in diameter can be grounded. With 360 degree (Spherical) lapping. Machining is done with special grinding wheels. The grinding is done with Special wheel tools. Power range of the quality spindles varies between 5,5 – 10 kW and the rotation speed 0 – 10 000 rpm. The machines have five axes, all of which are special driven. Benefits with Raj grinding & laping’s process: