Benefits & Technical Highlights

Benefits & Technical Highlights

The PV 250 Series delivers fast, stable, and highly accurate grinding for valve balls up to 350 mm OD. Its 60° inclined head ensure excellent visibility, while the heavy-duty frame and precision roller guideways provide exceptional rigidity and surface finish. Designed for both uncoated and coated materials such as stellite, carbide, or ceramics, it offers flexibility without sacrificing precision.

Key Benefits

  • Rigid 13 t steel frame, no special foundations required

  • Renishaw Wi-Fi probe for automatic centering and keyway detection

  • Industry 4.0-ready Ethernet connection

  • Hydraulic tool holders (HSK A80 optional)

  • Stainless steel coatings and LED illumination

A collage of the PV250 range of products

Technical highlights

Work range½″ - 6″ (ID), Max OD: 250 mm (PV250) / 350 mm (PV250XD).
Grinding motor power14 kW (8000 rpm)
Y axis micro shift±20 mm
5 controlled axes X, Y, Z + rotation + grinding
Coolant capacity2000 L with optional chiller
Machine weight

≈13 000 kg

Roundness accuracy< 0.007 mm
Surface finish

Ra 0.2 µm

CNC control

Siemens SINUMERIK ONE CNC with customized SAPORITI interface