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