| Model | NP4000X2 | NP6000X2 | |
| Capacity(t/h) | Parallel polishing 
 | 4-4.5 | 6-9 | 
| Series polishing | 3-4 | 5-6 | |
| Power (KW) 
 
 
 | main motor | 55-75 | 75-90 | 
| Fan motor | 7.5-11 | 15 | |
| Water pump | 0.445 | 0.445 | |
| Water heater 
 | 2.5 | 2.5 | |
| Spindle speed(rpm) | 750-850 | ||
| Weight(not including motor)(kg) | 1260 | 1650 | |
| Dimension(L*W*H) (mm) | 2243*1600*2450 | 2300*1600*2513 | |