The trimming devices are controlled by the individual step motor, which enable to adjust the actual condition.
With the adjustment of tension solenoid. It is possible to meet the needs of different tension at the parallel part and bartack part of button hole.
With LCD displayer, touch panel operation, the entire works of data setting, pattern editing and modification can be done via the operating board. The operating board also supports the most used USB connector for transferring patterns and updating the program.
The system supports 30 patterns with diferent shapes and the format of patterns generated pattern-making software, Additionally the capacity can expand to 99 patterns, which can be selected and edited via the operating board freely.
| Model | UN1790E |
| Power | 550W |
| Max.speed | Max. 4,200sti/min, Normal 3,600sti/min |
| Max.press foot height | 14mm |
| Bar tacking length | 6.4-19.1mm for regular |
| Bar tacking width | Max. 5.0mm |
| Size of cloth cutting knife | 6.4~31.8mm (1/4″~1-1/4″) |
| Needle thread tension | Active tension (electronic thread tension control system) |
| Number of stitches | Automatically computed from the size of the buttonhole |
| Needle type | DP*5 #11-14 |
| Needle bar stroke | 34.6mm |
| Lubrication | Only the hook section needs a minute-quantity lubrication |
| Auto-lifter | Provided as standard (stepping motor type) |
| Needle throwing system | Stepping motor |
| Cloth feeding system | Intermittent feed by stepping motor |
| Cloth cutting knife system | By double-acting solenoid |
| Number of standard patterns | 30 patterns |
| Number of patterns that can be input | Max. 99 patterns |
| Bobbin thread winder | Built-in the machine head |
| Machine head drive system | Compact AC servo motor (direct-drive system) |
| G/N weight & volume | 78/73kgs, 780*380*650mm=0.193cbm |
| Complete set | With stand & table 106kgs, 0.28cbm |
