
| specification | Z3050×11 | Z3050×14 | Z3050×14/Ⅱ | Z3050×16 | Z3050×16Ⅰ | Z3050×16Ⅱ | ZQ3050×16 |
| max. drilling diameter mm | 50 | 50 | 50 | 50 | 50 | 50 | 50 |
| Distance between spindle axis and column mm | 260-1050 | 260-1150 | 260-1050 | 320-1220 | 250-1150 | 260-1050 | 260-1150 |
| Distance between spindle nose and working surface of base plate mm | 360-1100 | 360-1400 | 360-1400 | 350-1600 | 500-1600 | 360-1600 | 360-1600 |
| spindle travel mm | 220 | 220 | 220 | 300 | 300 | 220 | 220 |
| spindle taper(morse) | 5 | 5 | 5 | 5 | 5 | 5 | 5 |
| range of spindle speeds r.p.m | 78,135,240, 350,590,1100 | 78,135,240, 350,590,1100 | 78,135,240, 350,590,1100 | 25-2000 | 29-1400 | 78,135,240, 350,590,1100 | 78,135,240, 350,590,1100 |
| number of spindle speeds | 6 | 6 | 6 | 16 | 12 | 6 | 6 |
| r.p.m rang of spindle feeds | 0.10-0.56 | 0.10-0.56 | 0.10-0.56 | 0.04-3.2 | 0.10-0.40 | 0.10-0.56 | 0.10-0.56 |
| steps of spindle feeds | 6 | 6 | 3 | 16 | 4 | 3 | 6 |
| Radial rotation Angle (°) | 360 | 360 | 360 | 360 | 360 | 360 | 360 |
| main motor kw | 4 | 4 | 4 | 4 | 4 | 4 | 4 |
| Lifting motor power kw | 1.5 | 1.5 | 1.5 | 1.5 | 1.5 | 1.5 | 1.5 |
| weight kg | 1700 | 2400 | 2400 | 3500 | 3000 | 2800 | 2800 |
| overall dimensions mm | 1550*705*2250 | 1950×810×2450 | 1950×810×2450 | 2500*1060*2800 | 2200×900×2550 | 2170×950×2450 | 2170×950×2450 |