| Model | 2-NIDDLE 4-THREAD | Differential Feed | Lower Looper Auto Threader
| 610
| 
620S
|
630D
|
640DS
|
|
|---|
| Max.Speed | Up to 1300 s.p.m. |
|---|---|
| Max. Stitch Length | 1-4mm |
| Stitch Width | 5-7mm |
| Differential Feed | 0.8-2.0 |
| Presser Foot Height | Max. 6mm |
|
|
|
|
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