High Speed Computerized Flat-bed Coverseam 

A series of 4 or 5-thread and 2-needle overlocks, equipped with an integrated energy-saving servo motor (Direct Drive system), which guarantees quiet and reliable operation and lower power consumption. Double transport: bottom and top. The upper transport ensures the perfect movement of the upper and lower layers of the sewn materials, eliminates the problem of overcoming transverse stitching and any gussets.


  • JACK W4-D-01GB – interlock machine (standard) without automatic functions


Technical parameters

  • sewing speed: 7000 stitches / min
  • double transport: bottom and top
  • central lubrication
  • integrated LED lighting for the work field

Technical Specification

Model Needles Number of needles Number of threads Needle gauge (mm) Stitch width (mm) Differential transport Presser foot lift (mm) Sewing speed: 
stitches / min
W4-D-01GB 11#/14# 3 5 1.5 - 4.5 5.6/6.4 0.65 - 1.3 7 5500

JACK W4-D-01GB – interlock machine (standard) without automatic functions



  • Collect or Local Delivery Can be Arranged

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