Jack JK-797 Small arm overlock
The Jack JK-797 Small arm overlock is a high-speed machine, specially designed for precision stitching on tubular garments such as sleeves, cuffs, and children’s clothing. Its compact cylinder bed allows effortless access to hard-to-reach areas, ensuring neat and consistent overlocking.
Technical Specification
| Feature | Details |
|---|---|
| Machine Type | Small Arm Overlock Sewing Machines |
| Model | Jack JK-797 |
| Needle Type | DCx27 / B-27 |
| Number of Threads | 3 / 4 Threads |
| Max. Sewing Speed | 5,500 stitches per minute |
| Stitch Width | 4.5 – 6.4 mm (Standard), 6.5 mm (for 4-thread) |
| Stitch Length | 0.8 – 3.5 mm |
| Presser Foot Lift | Manual: 5.5 mm / Knee: 7 mm |
| Looper Mechanism | Upper and lower loopers with high durability |
| Lubrication | Fully automatic lubrication |
| Motor Type | Energy-saving servo motor (direct drive, typically 220V) |
| Application | Light to medium weight fabrics |
| Noise/Vibration | Low noise and vibration design |
| Needle Bar Stroke | Approx. 24.5 mm |
| Features | Small cylindrical arm for better handling of sleeves, cuffs, and small parts |
| Additional Features | Integrated LED light, easy threading system, user-friendly operation |


