| Technical date | Unit | VTL-12 | VTL-16 | VTL-20 | VTL-23 | VTL-26 |
| Max. cutting diameter | mm | 1250 | 1600 | 2000 | 2300 | 2600 |
| Diameter of worktable | mm | 1000 | 1400 | 1800 | 2000 | 2250 |
| Max. height of workpiece | mm | 1000/1200 | 1200/1400/1600 | 1200/1400/1600 | 1400/1600/2000 | 1600/2000 |
| Max. capacity of workpiece | ton | 4 | 6 | 8/10 | 10/12 | 10/16 |
| Worktable speed range | r/min | 6.3-200 | 5-160 | 3.2-100 | 3.2-100 | 2-63 |
| Speed step of worktable turning | step | 16 | 16 | 16 | 16 | 16 |
| Vertical/side turret feeding range | mm/min | 0.8-86 | 0.8-86 | 0.8-86 | 0.8-86 | 0.8-86 |
| Vertical/side turret feeding step | step | 12 | 12 | 12 | 12 | 12 |
| Horizontal travel of tool head | mm | 700 | 915 | 915 | 1300 | 1500 |
| Max. travel of the ram | mm | 650 | 800/1000 | 800/1000 | 800/1000/1300 | 1000 |
| Cross rail travle | mm | 650 | 650/850/1100 | 1050/1250/1650 | 1050/1250/1650 | 1250/1650 |
| Swing degree of tool head | degree | ±30 | ±30 | ±30 | ±30 | ±30 |
| Side turret cutting diameter | mm | 1100 | 1400 | 1400 | 2000 | 1400 |
| Side turret horizontal travel | mm | 630 | 630 | 630 | 630 | 630 |
| Side turret vertical travel | mm | 900 | 900 | 900 | 900 | 900 |
| Power of main motor | kw | 22 | 30 | 30 | 30 | 37 |
| Machine size | meter | 2.36x2.27x3.4 | 2.66x2.66x3.7 | 3.28x3.20x3.9 | 3.31x3.25x4.01 | 3.68x3.36x5.1 |
| Machine weight | ton | 8 | 13/14/15 | 18/19/20 | 19/20/22 | 26/28 |
