Jack W4-D-02BB

JACK W4-D-01GBX356 (3-needle, 5.6 mm needle spacing) is a 3-needle, 5-thread flatlock (coverstitch) chainstitch machine with a flat bed, top and bottom cover threads, a built-in direct-drive servo motor with a needle positioner, smooth speed control, and an edge-binding attachment.

For Lightweight and Heavy-Duty Work

Expands your sewing capabilities and handles a wide variety of fabrics with ease.

Voice Guidance

The built-in voice guide helps you learn various machine functions, alerts you in case of errors, and suggests solutions when the ‘Voice’ button is pressed. Plus, you can restore factory settings with a single button press. (Available on -UT models only)
Multifunctional Use Standard seaming, binding, and bottom hemming.
Integrated Design Mechanical and electronic components are seamlessly integrated into a sleek, wire-free design.

JACK W4-D-02BB (3-needle, 5.6mm needle gauge) is a high-speed industrial 3-needle, 5-thread chainstitch flatbed coverstitch machine with top and bottom cover thread, featuring a built-in direct-drive servomotor with a needle positioner and smooth speed adjustment.

Technical Specifications

Model Jack W4-D-02BB
Function Plain Seaming
Needle UY128GAS 11-14#
Number of Needles 3
Number of Threads 5
Stitch Width (mm) 1.5-4.55
Stitch Length 5.6/6.4
Differential Ratio 0.65-1.3
Presser Foot Lifting Height (mm) 7
Max Speed (s.p.m) 5500
Volume (mm) 670x445x595
Weight (kg) 48/58