Overlock comparison
JACK C3c vs JACK E4S: which overlock machine should you buy?
A side-by-side look at two overlock machines from our catalog: the specifications each one lists, where they differ, and which kind of production each suits. Both are used for garments, wovens, knitwear.

JACK C3c
High-speed overlock machine with a servo-assisted presser-foot shear, running up to 5500 s.p.m., available in 3-, 4-, 5- and 6-thread configurations for different seam needs.

JACK E4S
Overlock machine with a sealed, leak-free oil tray and an L/M/H feed selector for light to heavy fabric — start/stop response is cut by 40-50% via a one-key reset intelligent panel, for T-shirts, underwear and jeans.
Key differences
- The catalog lists different roles for the two: compare the "best for" notes below and tell us your fabric and volume.
Specifications side by side
| Specification | JACK C3c | JACK E4S |
|---|---|---|
| Configurations | C3c-3-02/233 (3-thread) up to C3c-6-03/333 (6-thread) | — |
| Needle | #11 or #14 depending on configuration | — |
| Max sewing speed | 5500 s.p.m. | — |
| Differential ratio | 0.7-2 | — |
| Presser foot lift | 6.5mm | — |
| Dimensions | 520 x 360 x 510mm | — |
| Weight | 27.32/34.65kg | — |
| Series | — | Overlock |
| Feed selector | — | L/M/H lever for light, medium, heavy fabric |
| Response | — | Start/stop response shortened by 40-50% |
| Lubrication | — | Enclosed needle bar, sealed oil tray — no leaks |
| Controls | — | One-key reset intelligent panel, LED light |
| Motor | — | Single-shaft, integrated energy-saving motor |
| Best for | — | T-shirts, underwear, jeans, mid-to-high-level clothing |
| Availability | — | Order on request |
Highlighted rows differ. A dash means the catalog does not list that specification for the machine; ask us and we will confirm it.
Which one fits your work?
Choose the JACK C3c if…
High-speed overlock machine with a servo-assisted presser-foot shear, running up to 5500 s.p.m., available in 3-, 4-, 5- and 6-thread configurations for different seam needs.
- Servo-assisted shear
- Smooth stitches
- Multiple thread options
Choose the JACK E4S if…
Overlock machine with a sealed, leak-free oil tray and an L/M/H feed selector for light to heavy fabric — start/stop response is cut by 40-50% via a one-key reset intelligent panel, for T-shirts, underwear and jeans.
- L/M/H feed selector
- 40-50% faster start/stop
- Sealed, leak-free oil tray
Swami Enterprises is an authorized JACK dealer and importer. Bring your own fabric to the Chanakya Place showroom and sew on both before you decide.
Questions buyers ask
What is the difference between the JACK C3c and the JACK E4S?
The catalog lists different roles for the two: compare the "best for" notes below and tell us your fabric and volume.
Which is better, the JACK C3c or the JACK E4S?
It depends on your fabric, operation and daily volume. The JACK C3c is described as: High-speed overlock machine with a servo-assisted presser-foot shear, running up to 5500 s.p.m., available in 3-, 4-, 5- and 6-thread configurations for different seam needs. The JACK E4S is described as: Overlock machine with a sealed, leak-free oil tray and an L/M/H feed selector for light to heavy fabric — start/stop response is cut by 40-50% via a one-key reset intelligent panel, for T-shirts, underwear and jeans.
What is the price of the JACK C3c and the JACK E4S?
Prices depend on the model, quantity and the day. Call +91 99713 36656 or request a quote for today's price on either machine.
Can I see both machines before buying?
Yes. Visit the showroom at Chanakya Place, New Delhi. Call +91 99713 36656 first so the team can confirm which models are on display and in stock.
Not sure which to pick?
Tell us your fabric, operation and daily volume. A specialist will recommend one, with today's price.