Overlock comparison
JACK C7 URUS 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 knitwear, wovens, garments.
JACK C7 URUS
Jack’s flagship AI overlock machine — reads fabric thickness in real time and adjusts pressure and feed automatically for a perfect stitch, even on difficult materials.
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
- Series: JACK C7 URUS — Overlock, AI-integrated; JACK E4S — Overlock.
- Availability: JACK C7 URUS — Order on request; JACK E4S — Order on request. Call to confirm today's stock.
Specifications side by side
| Specification | JACK C7 URUS | JACK E4S |
|---|---|---|
| Series | Overlock, AI-integrated | Overlock |
| Max sewing speed | 7000 s.p.m. | — |
| Torque | Automatic torque increase up to 9.2Nm for thickness changes | — |
| Presser foot lift | Digital, stepper-motor controlled, up to 10mm | — |
| Thread cutter | Automatic electric cutter, short thread remaining (down to 5mm) | — |
| Feed dog selector | Mechanical L/M/H lever for light, medium, heavy fabric | — |
| Sewing modes | Manual, semi-automatic, fully automatic (photocell) | — |
| Connectivity | Integrated WiFi, Industry 4.0 ready | — |
| Best for | T-shirts, underwear, jeans, mid-to-high-level clothing | T-shirts, underwear, jeans, mid-to-high-level clothing |
| Availability | Order on request | Order on request |
| 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 |
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 C7 URUS if…
Jack’s flagship AI overlock machine — reads fabric thickness in real time and adjusts pressure and feed automatically for a perfect stitch, even on difficult materials.
- Auto-adjusts to fabric thickness
- Photocell auto-sew mode
- Short-thread auto cutter
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 C7 URUS and the JACK E4S?
Series: JACK C7 URUS — Overlock, AI-integrated; JACK E4S — Overlock. Availability: JACK C7 URUS — Order on request; JACK E4S — Order on request. Call to confirm today's stock.
Which is better, the JACK C7 URUS or the JACK E4S?
It depends on your fabric, operation and daily volume. The JACK C7 URUS is described as: Jack’s flagship AI overlock machine — reads fabric thickness in real time and adjusts pressure and feed automatically for a perfect stitch, even on difficult materials. 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 C7 URUS 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.