
| Model | JK740DD-01-SUT | JK740DD-02-SUT |
| Needles gauge | 52mm | |
| Stitch length | 1.6-2.5mm | |
| Differential ratio | 1:07-1:05 | |
| Presser lift height | 8-10mm | |
| Needle bar stroke | 30mm | |
| Sewing speed | 4200 s.p.m. | |
| Suction device | Pneumatic suction/ Electric suction(optional) | |
| Cut knife | Single knife | Double knife |
| Adjustable base | ±2cm | |
| Dual differrential feed ratio | Optional | |
| Packing size | 645x520x500mm | |
| Weight | 62/46kgs | |