JACK Overlock C4

A series of high-performance 3-, 4- and 5-thread overlocks, equipped with an integrated energy-saving motor mounted in the head directly on the machine’s main shaft (DIRECT DRIVE system), which guarantees quiet and reliable operation and lower power consumption. The modern design of the machine provides better ventilation of the motor and thus faster and more efficient operation, and as a result, a longer machine life. The world’s first industrial overlock with a built-in operation panel with voice functions and a Reset button to restore factory settings.

Technical parameters:

  • sewing speed: 7000 stitches / min
  • height of foot lifting: 5 mm
  • positioning of needles
  • integrated backlight with LED diodes
ModelNeedlesNumber of needlesNumber of threadsNeedle gauge (mm)
Stitch width (mm)Stitch length (mm)Differential transport
Presser foot lift (mm)
C4-3-02/233#1113-43,80,7 - 25
C4-3-32R2/223#913-1,53,80,7 - 25
C4-4-M03/333#1124244,60,7 - 25,5
C4-5-03/333 (3+4)#1425343,80,7 - 25
C4-5-03/233 (5+5)#1425553,80,7 - 25

JACK Overlock C4

Three work modes

Automatic mode: the machine works without using feet.

Semi-automatic mode: the machine works with a photocell, with automatic foot lifting and automatic thread cutting.

Individual: the machine works according to the employee’s settings.

JACK Overlock C4

Improved needle bar lubrication

Improved needle lubrication system increases its efficiency and lifetime and eliminates oil leaks.

JACK Overlock C4

“Reset” button

Quick return to user settings or factory settings.

JACK Overlock C4

Stable and durable construction

Reduced machine torque, thanks to which it works more stable.

JACK Overlock C4

Speed up to 7000 rpm

C4 is from 35% to 100% faster than a normal machine.