OGM UEXIII-Series
Universal precision cylindrical grinding machine
The OGM-UEXIII-Series universal type is Okamoto's high-quality external universal precision grinding machine. Standard software includes a 10-step grinding program, with profile-grinding software optionally available. Grinding data entry is via touchscreen; wheel and work spindles are driven by Fanuc AC servomotors. A shoulder locator and gap eliminator are included as standard.
| OGM-250UEXIII | OGM-350UEXIII | OGM-390UEXIII | OGM-3150UEXIII | |
|---|---|---|---|---|
| Swing over table | 320 mm | 320 mm | 320 mm | 320 mm |
| Centre distance | 500 mm | 900 mm | 1500 mm | 500 mm |
| Max. grinding diameter | 300 mm | 300 mm | 300 mm | 300 mm |
| Max. weight between centres | 150 kg | 150 kg | 150 kg | 150 kg |
| Chuck (face plate + chuck + load) | 40 kg | 40 kg | 40 kg | 40 kg |
| Grinding wheel size (outside Ø × B × inside Ø) | Ø455 × 50 × Ø127 mm | Ø455 × 50 × Ø127 mm | Ø455 × 50 × Ø127 mm | Ø405 × 38 × Ø127 mm |
| Rotational speed | 1570 / 1742 min⁻¹ | 1570 / 1742 min⁻¹ | 1570 / 1742 min⁻¹ | 1767 / 1996 min⁻¹ |
| Spindle speed | 10 – 500 min⁻¹ | 10 – 500 min⁻¹ | 10 – 500 min⁻¹ | 10 – 500 min⁻¹ |
| Wheel spindle motor | 5.5 (opt. 7.5) kW | 5.5 (opt. 7.5) kW | 5.5 (opt. 7.5) kW | 5.5 (opt. 7.5) kW |
| Height, floor to workpiece centre | 1000 mm | 1000 mm | 1000 mm | 1000 mm |
| Total weight, net | 4600 kg | 5000 kg | 6000 kg | 4600 kg |
The centre-distance and total-weight rows are reproduced exactly as published on the source page, including the non-sequential ordering across models.
Key features
- External / universal cylindrical grinding machine
- FANUC touchscreen control with easy-to-use software
- Sizes from 500 mm to 1500 mm between centres

