Overlock comparison
JACK E4S vs SINGER S 8140: 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 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.
SINGER S 8140
SINGER's S 8140 is a direct-drive four-thread overlock machine built for up to 70% lower power consumption, with automatic lubrication (with oil filter), needle position control and easily adjustable differential feed.
Key differences
- Motor: JACK E4S — Single-shaft, integrated energy-saving motor; SINGER S 8140 — Direct drive, up to 70% power saving.
Specifications side by side
| Specification | JACK E4S | SINGER S 8140 |
|---|---|---|
| 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 | Direct drive, up to 70% power saving |
| Best for | T-shirts, underwear, jeans, mid-to-high-level clothing | — |
| Availability | Order on request | — |
| Threads | — | 4-thread overlock |
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 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
Choose the SINGER S 8140 if…
SINGER's S 8140 is a direct-drive four-thread overlock machine built for up to 70% lower power consumption, with automatic lubrication (with oil filter), needle position control and easily adjustable differential feed.
Swami Enterprises is an authorized JACK dealer and importer. Swami Enterprises stocks SINGER machines as a stocking partner. 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 E4S and the SINGER S 8140?
Motor: JACK E4S — Single-shaft, integrated energy-saving motor; SINGER S 8140 — Direct drive, up to 70% power saving.
Which is better, the JACK E4S or the SINGER S 8140?
It depends on your fabric, operation and daily volume. 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. The SINGER S 8140 is described as: SINGER's S 8140 is a direct-drive four-thread overlock machine built for up to 70% lower power consumption, with automatic lubrication (with oil filter), needle position control and easily adjustable differential feed.
What is the price of the JACK E4S and the SINGER S 8140?
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.