| Model | Ordinary type DJ550 | Enhanced typeDJ370 | 
| Movement distance of front to back(mm) | 560 | 380 | 
| Movement distance from top to bottom(mm) | 330 | 270 | 
| Machining hole range | 4-18 | 2-12 | 
| Ring die size (inner diameter)(mm) | 300-850 | 250-680 | 
| Positioning accuracy(mm) | 0.02 | 0.02 | 
| Spindle speed(r/m) | 0-3000 | 0-2000 | 
| Total power(kw) | 5 | 4 | 
| Control interface | Chinese/English | Chinese/English | 
| Machine size (mm) | 2200*900*1600 | 1750*900*1700 | 
| Machine weight(kg) | 1100 | 900 |