Lockstitch comparison
JACK F6 vs MAQI LS8450Te: 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 LS8450Te
MAQI's LS8450Te is a double-needle, step-motor, semi-dry-head computerized lockstitch machine — 0.1mm-precision electronic needle pitch, automatic presser-foot lift, a straight-knife thread trimmer, and electronic switching between the left and right needle.
Key differences
- MAQI LS8450Te lists an automatic thread trimmer; JACK F6 does not list one.
- Series: JACK F6 — Lockstitch, direct drive; MAQI LS8450Te — Lockstitch, double needle, step motor.
- Presser foot lift: JACK F6 — Manual, knee-operated; MAQI LS8450Te — Automatic.
- Availability: JACK F6 — In stock; MAQI LS8450Te — Order on request. Call to confirm today's stock.
Specifications side by side
| Specification | JACK F6 | MAQI LS8450Te |
|---|---|---|
| Series | Lockstitch, direct drive | Lockstitch, double needle, step motor |
| Needle | DBx1, 11-18# | — |
| Number of threads | 2 | — |
| Max stitch length | 5mm | — |
| Presser foot lift | Manual, knee-operated | Automatic |
| 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 |
| Needle pitch | — | Electronic, 0.1mm precision |
| Head | — | Semi-dry, micro-oil |
| Thread trimmer | — | Straight knife |
| Needle switching | — | Electronic, left/right |
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 LS8450Te if…
MAQI's LS8450Te is a double-needle, step-motor, semi-dry-head computerized lockstitch machine — 0.1mm-precision electronic needle pitch, automatic presser-foot lift, a straight-knife thread trimmer, and electronic switching between the left and right needle.
- Electronic left/right needle switch
- Semi-dry, micro-oil head
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 LS8450Te?
MAQI LS8450Te lists an automatic thread trimmer; JACK F6 does not list one. Series: JACK F6 — Lockstitch, direct drive; MAQI LS8450Te — Lockstitch, double needle, step motor. Presser foot lift: JACK F6 — Manual, knee-operated; MAQI LS8450Te — Automatic.
Which is better, the JACK F6 or the MAQI LS8450Te?
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 LS8450Te is described as: MAQI's LS8450Te is a double-needle, step-motor, semi-dry-head computerized lockstitch machine — 0.1mm-precision electronic needle pitch, automatic presser-foot lift, a straight-knife thread trimmer, and electronic switching between the left and right needle.
What is the price of the JACK F6 and the MAQI LS8450Te?
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.