Jack JK-8740C-460-02H-UTL Industrial Overlock Machine – For Boxer Shorts, Colon Socks & Seam Serging
drawing machine
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JACK JK-8740: Specialized Shell Stitch & Boxer Hemming Machine with Slitting Blade
Meet the JACK JK-8740 – the ultimate specialized machine for professional shell stitch (raschel) finishing and boxer short hemming. This innovative machine expertly creates decorative shell stitches while perfectly hemming boxer shorts and colon socks with precision. Equipped with a integrated slitting blade for notching and trimming, the JK-8740 ensures flawless finishes on elastic edges and delicate fabrics. Designed for efficiency and consistency, this machine is the perfect choice for intimate apparel and hosiery manufacturers seeking professional results.
Key Specifications:
⚙️ Model: JACK 8740 Heavy-Duty Walking Foot Sewing Machine
⚡ Maximum Speed: 2,200 SPM (Optimized for thick materials)
🧵Stitch Type: Single-Needle Lockstitch
📏 Stitch Length: Adjustable, up to 6 mm
🚀 High-Lift Walking Foot: Effortlessly feeds multiple layers of thick fabrics like leather and canvas.
🔧 Heavy-Duty Construction: Reinforced needle bar and presser bar for unmatched durability.
🎯 Versatile Material Handling: Masterfully sews leather (up to 8mm), denim, canvas, and upholstery.
💪 Manual Control: Lever-operated reverse stitching and manual thread trimming for precision.
👨🔧 Ideal For: Leather craftsmen, upholsterers, shoemakers, and workshops specializing in heavy-duty products.
Small cylinder bed - The small arm measures only 150mm, making the machine suitable for closing very small tubes.
Automatic Presser Foot Lifter - The automatic foot lifter with spring structure allows wide adaptability to various types of fabric.
Pneumatic Thread Trimmer (UTL) - Thanks to the integrated photocell it is possible to activate the automatic cut at the beginning and end of the seam, furthermore the suction takes away the excess chain stitch.
Wasted suction device - The waste generated by the trimming knife are sucted keeping the workspace tidy and clean, without accumulating dirt.
Direct drive motor - Silent motor with reduced vibrations and low energy consumption, it also allows greater safety and speed in assembly and installation.
No oil leaks - Thanks to the sealed structure, you will not have oil leaks that will ruin your clothes.
Jack 8740C Machines Specifications

