DOUBLE-STEP FEED DIFFERENTIAL CUT-BIND INTEGRATED LOCKSTITCH SEWING MACHINE + POWER-DRIVEN BINDER
1. Upper differential feed is driven by an independent stepping motor. The upper differential feeding amount is adjustable to prevent misalignment and achieve smoother sewing.
2. Front-mounted differential connected with mechanical linkage (Patented product).
3. The electronic upper differential supports up to 15 adjustable segments.
4. Manual switchover of differential feed amount and stitch length is available.
5. Electronic back-tacking, electronic stitch length, and built-in presser-foot lifter.
6. Optional needle positions: 1/8", 5/32", 3/16", 1/4", 5/16".
7. The folder is compatible with market-standard universal folders.
8. Straight-line oscillating folder, no seam bursting (Patented product).
Suitable for down jackets, cotton-padded coats, jackets, windbreakers, sun-protection jackets, trousers, and edge-trimming & overlocking. One-step processing.
| Model | SP-5490-7/QB-STJ/DLBT |
| Needle | DBX1 |
| LeverStroke(mm) | 31.8mm |
| MaxStitchlength(mm) | 5 |
| Thin | ★ |
| Medium | ★ |
| Heavy | ★ |
| Automatic ThreadTrimmer | ★ |
| MaxTop-FeedAmount | 8 |
| Press.footlift(mm) | 5-13 |
| Max.speed(s.p.m.) | 4000 |
| Overalldims.(mm) | 650X270X540 |
| Netwt.(kg) | 40/50 |
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