
The SP-FSC845 and SP-FSC875 are the stepping-foot variant of the free-arm double-needle lockstitch family — combining the cylinder-bed geometry for tubular sewing with an alternating (stepping) presser foot for reliable fabric advance on thick or layered materials. Available in 4 mm gauge (FSC845) and 7 mm gauge (FSC875), these machines handle double-stitched hems on heavy jeans, waistbands, trouser legs and bag handles where both tubular access and stepping action are required. All automation features of the FSC series are retained: automatic thread trim, programmable back-tack and touch-panel programme storage.
The only configuration combining a cylinder-bed arm for tubular access with an alternating presser foot for thick/layered fabric — handles heavy jeans hems, bag handles and waistbands that are both tubular and dense.
FSC845 (4 mm) for close twin-stitch lines; FSC875 (7 mm) for wide parallel stitching on heavy-fabric tubular operations.
Alternating presser foot prevents stitch bunching on thick seam crossings and multi-layer intersections in tubular denim and workwear components.
Both needle threads trimmed simultaneously at seam end — clean finish on tubular double-stitch operations on heavy fabrics.
Left and right needle threads controlled independently for balanced stitch appearance at full gauge width on heavy materials.
Touch-panel stores multiple back-tack and condensed-stitch programmes — consistent seam security across all operators.
| Specification | SP-FSC845 (4 mm) / SP-FSC875 (7 mm) |
|---|---|
| Brand | SUPREME Intelligent Technology · China |
| Model | SP-FSC845 (4 mm) / SP-FSC875 (7 mm) |
| Machine Type | Free-Arm 2-Needle Lockstitch, Stepping Foot |
| Drive System | Servo motor |
| Max Sewing Speed | 3,000 rpm |
| Needle Gauge | 4 mm (FSC845) / 7 mm (FSC875) |
| Stitch Length | 0 – 4 mm |
| Needle | DB×1 #14 – #21 (pair) |
| Arm Type | Free-arm (cylinder-bed) |
| Presser Foot | Alternating / stepping |
| Thread Trim | Automatic (both needles) |
| Power Supply | AC 220 V, 50/60 Hz, 600 W |
| Origin | China |
* Specifications subject to change. Contact us for the latest datasheet.