The SAPORITI PV 1000 ball valve grinding machines can machine balls up to 1100 mm in diameter then are suitables for balls from 10″ up to even 30″ ID.
Some important features are:
– High machine weight and rigidity which permits precise roundness accuracy up to 10 µ
– Roller sliders guideways on all axes for long machine life, accuracy and surface finish to Ra 0.2 or better.
– Sealed water cooled motors allow the use of large coolant quantity (also through spindle) to keep the grinding pads clean and at a constant temperature
– Perfect centering is achieved with the use of the “Renishaw” probe, either external or internal.
– The grinding wheel can cover a range of diameters and can fit either grinding or diamond pads.
The machines was studied especially to works balls with metal to metal seals and is also suitable to work balls coated by others materials as satellite, ceramics etc.