Technical Specifications
Specifications | Model | S7520A | ||||||
Type | 200×750 | |||||||
Max. diameter of workpiece | External | mm | 200 | |||||
Internal | mm | 160 | ||||||
Center distance | mm | 750 | ||||||
Center height | mm | 120 | ||||||
Thread diameter ground | External | Single-rib wheel | mm | 2-200 | ||||
Multi-rib wheel | mm | 4-120 | ||||||
Internal | mm | 25-125 | ||||||
Max. thread length ground | External | Single-rib wheel | mm | 500 | ||||
Multi-rib wheel | mm | 460 | ||||||
Internal | mm | 75 | ||||||
Pitch ground | External | V-typed thread | Single-rib wheel | mm | 0.25-24 | |||
Multi-rib wheel | mm | 1-6 | ||||||
British | Teech/inch | 3-28 | ||||||
Metric | mm | 2-24 | ||||||
Module | mm | 0.3-20Õ | ||||||
Internal | V-typed thread | mm | 0.5-6 | |||||
Max. taper of thread ground | 1:5 | |||||||
Max. helix angle of thread ground | External | ±30° | ||||||
Internal | ±6° | |||||||
Amount of relief | mm | 0.03-4 | ||||||
Work spindle rotation | In grinding | r/min | 0.2-25; 0.8-100 | |||||
In rapid movement | r/min | 25,100 | ||||||
Max. longitudinal traverse of table | mm | 510 | ||||||
Rapid approach & withdrawal of wheel stock | mm/sec | 15 | ||||||
Wheel spindle rotation | External | r/min | 1670,2145 | |||||
Internal | r/min | 5745,8100,14400,18400 | ||||||
Wheel size | External diameter (O.D) | mm | 300-400 | |||||
External width | mm | 10,20,40 | ||||||
Internal diameter (O.D) | mm | 20-100 | ||||||
Internal width | mm | 6 | ||||||
Machine size (LxWxH) | mm | 2500x1800x1800 | ||||||
Machine weight | kg | 5800 | ||||||
Pitch
accuracy |
For single tooth | μm | ±4 | |||||
For 25mm long | μm | ±7 | ||||||
For 100mm long | μm | ±8 | ||||||
For 300mm long | μm | ±11 | ||||||
For total length | μm | ±16 |