Description
The SGA-series are solidly-built surface grinding machines, featuring automatic vertical feed. All main parts, like stand, base and apron are made of high-quality grey cast iron. The wide range of accessories make these models very cost-effective for tool and die making.
Specification
| Specification | SGA-2550AH/AHR/AHD | |
| Table size (L×W) | 500×250 mm | |
| Max. longitdinal travel | 520 mm | |
| Max. cross travel | 260 mm | |
| Max.distance from spindle center to table | 450 mm | |
| Magnetic chuck size | 500×250 mm | |
| Speed of table longitudinal movement | 7~23 m/min | |
| Table transverse movement | Auto feed | 0.1~8 mm/min |
| Rapid speed | 990 mm/min | |
| Feed of handwheel | 0.02 mm/div. | |
| Wheelhead vertical movement | Auto feed | -（H/R mode）0.005/0.1/0.02/0.03/0.04/0.05(Only for D mode) mm/stroke |
| Rapid speed | -（H mode）610 (Only for R mode) 480 (Only for D mode) mm/min | |
| Feed of handwheel | 0.005 mm/div. | |
| Grinding wheel | Speed | 50Hz 2800 rpm 60Hz 3600 rpm |
| (OD×W×ID)Size | Φ200x20x31.75 | |
| Spindle motor | 2.2 kw | |
| Hydraulic motor | 1.5 kw | |
| Cooling pump motor | 0.04 kw | |
| Elevating motor | -（H mode) 0.25 (R mode) 0.75 (D mode,servo motor) kw | |
| Cross feed motor | 0.04 kw | |
| Max loading capacity of table (include magnetic chuck) | 200 kg | |
| Total rated power | 4 kw | |
| Surface roughness | Ra≦0.25 μm | |
| G.w | 1400 kg | |
| Packing size (L×W×H) | 2050×1500×1980 mm | |
Main Features
1.Plastic-coated counter guide in x- and y-axis assure a low slip-stick-effect.
2.V-flat longitudinal table guide, double-V cross table guide.
3.Spindle features axial and radial, clearance-free, pre-tensioned bearings.
4.Seperate hydraulic unit with heat exchanger to omit vibrations and thermal load.
5.Special hydraulic system guarantees gentle table adjustment even at full load.
6.Solidly constructed and well supported structure assures high stability.
7.Digitally controlled, automatic vertical feed with servo motor.
8.Infeed via rapid feed to height of workpiece, adjustable to finishing and sparking, automatic lift at program end.
9.Adjustable longitudinal and cross table movement via end stops.
Machine Details
