Lockstitch comparison
JACK F6 vs JUKI DDL-8700: 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.

JUKI DDL-8700
JUKI's standard 1-needle lockstitch machine, also offered as the DDL-8700-7 with an automatic thread trimmer and a new-model compact servomotor for energy saving.
Key differences
- JUKI DDL-8700 lists an automatic thread trimmer; JACK F6 does not list one.
Specifications side by side
| Specification | JACK F6 | JUKI DDL-8700 |
|---|---|---|
| Series | Lockstitch, 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 | — |
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 JUKI DDL-8700 if…
JUKI's standard 1-needle lockstitch machine, also offered as the DDL-8700-7 with an automatic thread trimmer and a new-model compact servomotor for energy saving.
Swami Enterprises is an authorized JACK dealer and importer. Swami Enterprises stocks JUKI 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 JUKI DDL-8700?
JUKI DDL-8700 lists an automatic thread trimmer; JACK F6 does not list one.
Which is better, the JACK F6 or the JUKI DDL-8700?
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 JUKI DDL-8700 is described as: JUKI's standard 1-needle lockstitch machine, also offered as the DDL-8700-7 with an automatic thread trimmer and a new-model compact servomotor for energy saving.
What is the price of the JACK F6 and the JUKI DDL-8700?
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.