| model | DS-7A | DS-7C |
| Max. Speed ※ | 1600 rpm | |
| Seam | Double thread chain stitch | |
| Stitch Width | 7.7 millimeters (self sending) | |
| Bag Material | Paper, PP | |
| Suture thickness | Paper bag with 3P folding | |
| Cutter | Automatic thread cutter | Automatic crepe tape cutter |
| needle | DN-H29 #26 | |
| Oiling | Euler | |
| oil | Terrace # 32 | |
| weight | 26.0 kg | |
| Feature | Continuation sending (feed rollers) | |
| Related Machines | KS-1 and KS-2 process sealing machines | |
