Jack Catalogue and specifications

Jack C4 catalogue (PDF)

Jack's catalogue for the C4 computerised overlock machine with voice guide. T-shirt, polo, knitwear and uniform lines use it for long runs of overlock seams, and the voice guide tells a new operator what a fault is and how to clear it.

2 pages, Jack Technology Co., Ltd. catalogue, Al Borj edition, October 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 C4 catalogue, page 2: front and back cover with the specification table, in English and Vietnamese

What the Jack C4 catalogue covers

Two pages in English and Vietnamese, from Jack's edition for Vietnam: the cover with the specification table, then the features and the voice guide. The table lists builds from 3 to 6 threads, for basic seams, binding, narrow edges, non-woven, towels, heavy fabric and denim.

The C4 works in fully automatic, semi-automatic or manual mode, so each operator can run it at the level they are trained for. Al Borj supplies, installs and services the C4 from Sharjah and Accra.

Machine type: Computerised overlock machine with voice guide.

Max sewing speed
7,000 stitches/min
Stitch length
4.6 mm
Stitch width
4 mm
Needle gauge
2 mm
Differential ratio
0.7-2
Presser foot height
5.5 mm

Figures from the Jack catalogue.

Pages from the Jack C4 catalogue

Jack C4 catalogue, page 2: front and back cover with the specification table, in English and Vietnamese
Page 2
Jack C4 catalogue, page 3: features and the voice guide, in English and Vietnamese
Page 3

Download the Jack C4 catalogue (PDF, 1.6 MB)