Jack Catalogue and specifications

Jack W4-D-01GB catalogue (PDF)

Jack's catalogue for the W4 high-speed computerised flat-bed interlock machine; the W4-D-01GB we supply is the plain seaming build with direct drive. Knitwear, T-shirt and sportswear lines use it for hems, cover seams and binding on flat panels.

Download the catalogue (PDF, 1.9 MB) Jack W4-D-01GB: photos and quote

2 pages, Jack Technology Co., Ltd. catalogue, Al Borj edition, 2026. Free to download, with our contact details on the first and last page. For the AED price, delivery and installation, ask us on WhatsApp; we reply within one working day.

Jack W4-D-01GB catalogue, page 1: front and back cover, the W4 high speed computerised flat-bed interlock

What the Jack W4-D-01GB catalogue covers

Two pages in English: the cover, then the features and the specification table for the W4 builds. Jack shows the automatic thread trimmer on the computerised builds, the voice guide, the light and heavy fabric settings and the integrated design.

Jack states the W4 runs at 5,500 rpm against 3,700 rpm on an ordinary covering machine. Al Borj supplies, installs and services the W4-D-01GB from Sharjah and Accra.

Machine type: 3-needle flat-bed interlock machine.

Max sewing speed
5,500 spm
Needles / threads
3 / 5
Stitch length
1.5 to 4.5 mm
Needle gauge
5.6 mm or 6.4 mm
Differential feed ratio
0.65 to 1.3
Presser foot lift
7 mm

Figures from the Jack catalogue.

Pages from the Jack W4-D-01GB catalogue

Jack W4-D-01GB catalogue, page 1: front and back cover, the W4 high speed computerised flat-bed interlock
Page 1
Jack W4-D-01GB catalogue, page 2: features and specifications
Page 2

Download the Jack W4-D-01GB catalogue (PDF, 1.9 MB)

The machine

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