Lockstitch comparison
JACK F6 vs MAQI LS 8420DP-5: 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 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.

MAQI LS 8420DP-5
MAQI's LS 8420DP-5 is a direct-drive double-needle lockstitch machine with a 3-stage adjustable LED work light, one-key needle-position compensation, MAQI's own electronic control box with a USB port, and a semi-dry (micro-oil) head.
Key differences
- Series: JACK F6 — Lockstitch, direct drive; MAQI LS 8420DP-5 — Lockstitch, double needle, direct drive.
- Availability: JACK F6 — In stock; MAQI LS 8420DP-5 — Order on request. Call to confirm today's stock.
Specifications side by side
| Specification | JACK F6 | MAQI LS 8420DP-5 |
|---|---|---|
| Series | Lockstitch, direct drive | Lockstitch, double needle, direct drive |
| Needle | DBx1, 11-18# | — |
| Number of threads | 2 | — |
| Max stitch length | 5mm | — |
| Presser foot lift | Manual, knee-operated | — |
| Max sewing speed | 5000 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 |
| Work light | — | 3-stage adjustable LED, with needle compensation |
| Control box | — | MAQI's own electronic control, USB port |
| Head | — | Semi-dry, micro-oil |
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 MAQI LS 8420DP-5 if…
MAQI's LS 8420DP-5 is a direct-drive double-needle lockstitch machine with a 3-stage adjustable LED work light, one-key needle-position compensation, MAQI's own electronic control box with a USB port, and a semi-dry (micro-oil) head.
- 3-stage adjustable LED + needle compensation
- Own electronic control box with USB
Swami Enterprises is an authorized JACK dealer and importer. Swami Enterprises stocks MAQI 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 F6 and the MAQI LS 8420DP-5?
Series: JACK F6 — Lockstitch, direct drive; MAQI LS 8420DP-5 — Lockstitch, double needle, direct drive. Availability: JACK F6 — In stock; MAQI LS 8420DP-5 — Order on request. Call to confirm today's stock.
Which is better, the JACK F6 or the MAQI LS 8420DP-5?
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 MAQI LS 8420DP-5 is described as: MAQI's LS 8420DP-5 is a direct-drive double-needle lockstitch machine with a 3-stage adjustable LED work light, one-key needle-position compensation, MAQI's own electronic control box with a USB port, and a semi-dry (micro-oil) head.
What is the price of the JACK F6 and the MAQI LS 8420DP-5?
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.