Lockstitch comparison
JACK F6 vs JACK S5: which lockstitch machine should you buy?
A side-by-side look at two lockstitch machines from our catalog: the specifications each one lists, where they differ, and which kind of production each suits. Both are used for shirts, wovens.
JACK F6
Direct-drive computerized lockstitch machine running up to 5000 s.p.m. on a built-in silent servo motor, with oil-free semi-dry lubrication and a built-in thread-cutting knife for shirts, wovens and uniform work.
JACK S5
Computerized post-bed roller-feed machine with a built-in panel, QR-code software upgrades and a 100% stitch-overlap ratio.
Key differences
- JACK F6 lists the higher top speed: 5000 s.p.m. against 3000 s.p.m.
- Series: JACK F6 — Lockstitch, direct drive; JACK S5 — Post bed.
- Needle: JACK F6 — DBx1, 11-18#; JACK S5 — INDPX5#16.
- Availability: JACK F6 — In stock; JACK S5 — Order on request. Call to confirm today's stock.
Specifications side by side
| Specification | JACK F6 | JACK S5 |
|---|---|---|
| Series | Lockstitch, direct drive | Post bed |
| Needle | DBx1, 11-18# | INDPX5#16 |
| Number of threads | 2 | — |
| Max stitch length | 5mm | — |
| Presser foot lift | Manual, knee-operated | — |
| Max sewing speed | 5000 s.p.m. | Up to 3000 s.p.m. |
| Motor | Built-in silent, energy-saving servo motor | — |
| Lubrication | Semi-dry head, oil-free | — |
| Thread trimming | Built-in knife, manual | — |
| Availability | In stock | Order on request |
| Best for | — | Shirts, suits, pants, down jackets |
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 F6 if…
Direct-drive computerized lockstitch machine running up to 5000 s.p.m. on a built-in silent servo motor, with oil-free semi-dry lubrication and a built-in thread-cutting knife for shirts, wovens and uniform work.
- Built-in servo motor
- Built-in thread-cutting knife
- Oil-free semi-dry head
Choose the JACK S5 if…
Computerized post-bed roller-feed machine with a built-in panel, QR-code software upgrades and a 100% stitch-overlap ratio.
- Post-bed design
- Runs up to 3000 s.p.m.
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 F6 and the JACK S5?
JACK F6 lists the higher top speed: 5000 s.p.m. against 3000 s.p.m. Series: JACK F6 — Lockstitch, direct drive; JACK S5 — Post bed. Needle: JACK F6 — DBx1, 11-18#; JACK S5 — INDPX5#16.
Which is better, the JACK F6 or the JACK S5?
It depends on your fabric, operation and daily volume. The JACK F6 is described as: Direct-drive computerized lockstitch machine running up to 5000 s.p.m. on a built-in silent servo motor, with oil-free semi-dry lubrication and a built-in thread-cutting knife for shirts, wovens and uniform work. The JACK S5 is described as: Computerized post-bed roller-feed machine with a built-in panel, QR-code software upgrades and a 100% stitch-overlap ratio.
What is the price of the JACK F6 and the JACK S5?
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.