A new competitively priced hydraulically operated table surface grinding machine developed by Okamoto, the world's largest grinding machine manufacturer, incorporates AC servo control to provide a very simple to operate automatic vertical down-feed operation of the wheelhead to a high precision datum. Targeted to meet toolroom grinding requirements and small batch surface grinding, the Okamoto ACC-450 DXA machine is now available from 600 Centre of Shepshed, Loughborough. It has been priced very competitively due to the economy of scale production build capability of the Japanese company.

The machine includes a fully automatic grinding cycle through the Okamoto microprocessor based control with digital readout in two axes.

A coarse and fine downfeed selection are available at one, or both table reversals with automatic cross-saddle reversal.

The ACC-450 DXA weighs some 1.25 tonnes and is built on a heavily ribbed Meehanite casting.

Rigidity is high to accommodate heavy roughing and precise finishing cycles with a twin-vee saddle and table construction.

Magnetic chuck size is 450 mm by 150 mm with longitudinal travel of 530 mm.

Cross travel is 175 mm and the air gap between the 205 mm by 25 mm by 31.75 mm wheel and table is 310 mm.

The Wheel spindle has a 1.5 kW direct drive giving 2.850 revs/min.

Automatic downfeed is between 0.0001 and 0.03 mm with a cross-feed per revolution of 5 mm.

Continuous cross-feed rate is specified as between 0.16 to 0.4 m/min and intermittent cross-feed between 0 and 1.5 mm.

Options include, PG OPTI-DRESS or overhead straight dresser.

These are available in either manual or hydraulic formats.