ModelGP/GA15W
Distance Between Centers9.84 in (250 mm)
Max Grinding Dia.Ø5.91 in (Ø150 mm)
Grinding Wheel ODxIDØ20 × Ø8 in (Ø510 × Ø203.2 mm)
Max Grinding Wheel Width3 in (75 mm)
Rapid Traverse1,181 ipm (30 m/min)
Motors — Grinding wheel axis, kW (hp) (corrected: okuma.com showed '10 hp (7.5 kW)'; per the Okuma GP/GA14W / GP/GA15W CNC cylindrical grinders brochure, Feb 2018, p. 5)5.5 (7.5)
Grinding wheel axis (option), kW (hp) (corrected: okuma.com showed '10 hp (7.5 kW)'; per the Okuma GP/GA14W / GP/GA15W CNC cylindrical grinders brochure, Feb 2018, p. 5)7.5 (10)
Swing over table, mm (in.)ø330 (ø12.99)
Maximum workpiece length, mm (in.)250 (9.84)
Max workpiece weight — Center supported, kg (lb)20 (44)
Max workpiece weight — Chuck supported, kg × mm (lb × in.)10 × 100 (22 × 3.94)
Grinding wheel speed, m/min (fpm)2,700 (8,859)
Wheelhead (X-axis) — Travel, mm (in.)325 (12.8)
Wheelhead (X-axis) — Min command increment, mm (in.)ø0.0001 (ø0.000004)
Automatic cutting speed — Saddle (Z-axis), mm/min (ipm)0.0006 to 6,000 (0.00002 to 236.22)
Saddle (Z-axis) — Positioning speed, mm/min (ipm)20,000 (787.40)
Saddle (Z-axis) — Min command increment, mm (in.)0.0001 (0.000004)
Workhead — Speed, min⁻¹Max 1,000
Tailstock — Tapered boreMT.No.3
Tailstock — Working travel, mm (in.)35 (1.38)
Tailstock — Manual taper offset, mm (in.)±ø0.08 (±ø0.003)
Motors — For headstock (C axis), kW (hp)1.7 (2.27)
Motors — For wheelhead (X axis), kW (hp)2.2 (3)
Motors — For saddle (Z axis), kW (hp)2.2 (3)
Motors — For coolant pump, kW (hp)50Hz: 0.39 (0.52) 60Hz: 0.62 (0.83)
Motors — Hydralic oil-lube pump, kW (hp)1.5 (2.0)
Motors — For wheel spindle lubricating oil, kW (hp)0.075 (0.1)
Motors — For slideway lubricating oil, kW (hp)0.017 (0.02)
Coolant tank, L (gal)200 (52.8)
Hydralic oil-lube tank, L (gal)20 (5.28)
Wheel spindle lube tank, L (gal)14 (3.7)
Slideway lubricant tank, L (gal)4.2 (1.1)
Weight, kg (lb)4,000 (8,800)
CNCOSP-P300GA
Automatic cutting speed — Wheelhead (X-axis), mm/min (ipm) (brochure contradiction: inch low end printed ø0.00004; metric used; Okuma GP/GA14W / GP/GA15W CNC cylindrical grinders brochure, Feb 2018, p. 5)ø0.0012 to ø6,000
Wheel: other configurations and options (1)
Grinding wheel speed (option), m/min (fpm)3,600 (11,812)
Saddle (Z-axis): other configurations and options (2)
Saddle (Z-axis) — Travel (GP), mm (in.)395 (15.55)
Saddle (Z-axis) — Travel (GA), mm (in.)440 (17.32)
Workhead: other configurations and options (2)
Tapered bore (Dead center workhead, Dead/live headstock)MT No.3
Workhead — Tapered bore (Chucking headstock)MT No.4
Tailstock: other configurations and options (1)
Working travel (option), mm (in.)50 (1.97)
