Buttonhole comparison
JACK JK-T1790G vs JACK JK-T781G: which buttonhole machine should you buy?
A side-by-side look at two buttonhole machines from our catalog: the specifications each one lists, where they differ, and which kind of production each suits. Both are used for garments.
JACK JK-T1790G
Super-fast computerized buttonhole machine with good knitting adaptation and an intelligent high-speed, high-efficiency system.
JACK JK-T781G
Integrated electronic lockstitch buttonholing machine on a servo-driven platform, with automatic presser-foot lifting and thread trimming, running up to 3600 s.p.m.
Key differences
- JACK JK-T1790G lists the higher top speed: 4200 s.p.m. against 3600 s.p.m.
- Needle: JACK JK-T1790G — DPx5, 12#; JACK JK-T781G — DPx5 12# (DPx5KN 11# on knitting variant).
Specifications side by side
| Specification | JACK JK-T1790G | JACK JK-T781G |
|---|---|---|
| Type | Buttonhole | — |
| Needle | DPx5, 12# | DPx5 12# (DPx5KN 11# on knitting variant) |
| Max sewing speed | Up to 4200 s.p.m. | 3600 s.p.m. |
| Best for | Keyhole seams: shirts, cardigans, work clothes, jeans | — |
| Availability | Order on request | — |
| Series | — | JK-T781G-Z (woven, 22x4 hole) |
| Presser foot lift | — | 12mm |
| Remaining thread | — | ≤3mm |
| Parallel interspace | — | 0.2-2.5mm |
| Thread trimming | — | Automatic |
| Presser-foot lifting | — | Automatic |
| Dimensions | — | 730 x 365 x 695mm |
| Weight | — | 46/66kg |
| Variants | — | JK-T781G/T782G/T783G-Z, JK-T781GK-Z (knitting), JK-T781G-Z-F13 |
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 JK-T1790G if…
Super-fast computerized buttonhole machine with good knitting adaptation and an intelligent high-speed, high-efficiency system.
- 4200 s.p.m. buttonhole speed
- Purpose-built keyhole needle
Choose the JACK JK-T781G if…
Integrated electronic lockstitch buttonholing machine on a servo-driven platform, with automatic presser-foot lifting and thread trimming, running up to 3600 s.p.m.
- Servo-driven integration
- Auto lifting & trimming
- Short thread remaining
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 JK-T1790G and the JACK JK-T781G?
JACK JK-T1790G lists the higher top speed: 4200 s.p.m. against 3600 s.p.m. Needle: JACK JK-T1790G — DPx5, 12#; JACK JK-T781G — DPx5 12# (DPx5KN 11# on knitting variant).
Which is better, the JACK JK-T1790G or the JACK JK-T781G?
It depends on your fabric, operation and daily volume. The JACK JK-T1790G is described as: Super-fast computerized buttonhole machine with good knitting adaptation and an intelligent high-speed, high-efficiency system. The JACK JK-T781G is described as: Integrated electronic lockstitch buttonholing machine on a servo-driven platform, with automatic presser-foot lifting and thread trimming, running up to 3600 s.p.m.
What is the price of the JACK JK-T1790G and the JACK JK-T781G?
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.