Main Feature
- Applicable model : DM Jumbo, DM Multi, SB Multi, K Multi
- Factory option
-> Impossible to be attached after shipped from SWF factory
-> Impossible to be replaced with standard hook
- Supplying high quality
-> Same level of existing one
- Speed : Over than 1,200 rpm [DM Series]
- Reliable design through many procedures
- Only supplied by SWF
| Speed | Standard Hook | Large Hook | Saved Time |
| 1,000 rpm | 14 times | 9 times | 35 min |
| 1,200 rpm | 17 times | 11 times | 42 min |
| 1,500 rpm | 21 times | 13 times | 56 min |
※Working Condition
- M/C : 20 heads – 16 hours per day, One Worker
- Time for workers to change bobbin : 7 min
- Average stitching length in the design : 2mm
- Bobbin thread length : Standard bobbin 100m, New bobbin 150m