
The Seiger SLZ 420 SK is the larger servo-conventional model of the SK series, expanded along with the years of training: first stops and threads, then manual cycles, then editing and running DIN/ISO programs on the Heidenhain 620 control. Ø430 mm swing over bed, 1,000–2,000 mm between centres, 11 kW or 20 kW, 1–3,000 rpm, 80 mm spindle bore (93 mm optional), MK 5 tailstock, accuracy to DIN 8605. For training centres we agree the equipment to match the number of workstations and the course programme.
| Brand | Seiger |
| Category | Lathes · Universal lathes |
| Working area | |
| Swing over bed | 430 mm |
| Distance between centres | 1000–2000 mm |
| Spindle bore | 80/93 (option) mm |
| Drive and output | |
| Spindle speed | 1–3000 rpm |
| Power | 11/20 kW |
| Control and accuracy | |
| Control system | Manual Heidenhain 620 control system |
| Tooling | |
| Quill taper | MK 5 |