Model | Speed | Needle | Motor | Stitch Spec. |
ZY63900-D4 LS | 4000 s.p.m | UY180GVS | Direct drive servo motor | Lock stitch |
ZY63900-D4 CS | 4000 s.p.m | UY180GVS | Direct drive servo motor | Chain stitch |
ZY63900-D4 LCS | 3500 s.p.m | UY180GVS | Direct drive servo motor | lock stitch and chain stitch |