Lockstitch comparison
JACK A4C vs MAQI Q7T: 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, garments.
JACK A4C
AI-integrated lockstitch machine running the Jack NTB control system with the Octopus "Nine-Brain" chip — direct-drive servo motor, auto thread trimmer, auto backtack and auto foot lift at up to 5000 s.p.m.
MAQI Q7T
MAQI's Q7T is an electronically controlled lockstitch machine built around quiet operation — silent electronic backtack, double-knife thread trimming that leaves a short thread end, and a closed automatic oil-pan lubrication system that keeps the machine and fabric free of oil stains.
Key differences
- JACK A4C lists an automatic thread trimmer; MAQI Q7T does not list one.
- Series: JACK A4C — Lockstitch (A-series, AI-integrated); MAQI Q7T — Lockstitch, electronically controlled.
- Presser foot lift (hand/auto): JACK A4C — 13mm / 6mm; MAQI Q7T — Electronic, quiet and smooth.
- Availability: JACK A4C — Order on request; MAQI Q7T — Order on request. Call to confirm today's stock.
Specifications side by side
| Specification | JACK A4C | MAQI Q7T |
|---|---|---|
| Series | Lockstitch (A-series, AI-integrated) | Lockstitch, electronically controlled |
| Needle | DBx1, 11-18# | — |
| Number of threads | 2 | — |
| Max stitch length | 5mm | — |
| Presser foot lift (hand/auto) | 13mm / 6mm | Electronic, quiet and smooth |
| Max sewing speed | 5000 s.p.m. | — |
| Control system | Jack NTB system with Octopus "Nine-Brain" AI chip | — |
| Motor | Direct-drive integrated servo motor | — |
| Feed | Computerized, auto-trimmer, auto backtack, auto foot lift | — |
| Availability | Order on request | Order on request |
| Thread trimming | — | Electronic double-knife trimming, quiet and stable |
| Backtack | — | Electronic needle-distance, silent backstitch |
| Lubrication | — | Closed oil pan, automatic |
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 A4C if…
AI-integrated lockstitch machine running the Jack NTB control system with the Octopus "Nine-Brain" chip — direct-drive servo motor, auto thread trimmer, auto backtack and auto foot lift at up to 5000 s.p.m.
- AI Nine-Brain chip
- Auto trim, backtack & foot lift
- Direct-drive servo motor
Choose the MAQI Q7T if…
MAQI's Q7T is an electronically controlled lockstitch machine built around quiet operation — silent electronic backtack, double-knife thread trimming that leaves a short thread end, and a closed automatic oil-pan lubrication system that keeps the machine and fabric free of oil stains.
- Silent electronic backtack
- Double-knife thread trimming
- Closed-pan automatic lubrication
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 A4C and the MAQI Q7T?
JACK A4C lists an automatic thread trimmer; MAQI Q7T does not list one. Series: JACK A4C — Lockstitch (A-series, AI-integrated); MAQI Q7T — Lockstitch, electronically controlled. Presser foot lift (hand/auto): JACK A4C — 13mm / 6mm; MAQI Q7T — Electronic, quiet and smooth.
Which is better, the JACK A4C or the MAQI Q7T?
It depends on your fabric, operation and daily volume. The JACK A4C is described as: AI-integrated lockstitch machine running the Jack NTB control system with the Octopus "Nine-Brain" chip — direct-drive servo motor, auto thread trimmer, auto backtack and auto foot lift at up to 5000 s.p.m. The MAQI Q7T is described as: MAQI's Q7T is an electronically controlled lockstitch machine built around quiet operation — silent electronic backtack, double-knife thread trimming that leaves a short thread end, and a closed automatic oil-pan lubrication system that keeps the machine and fabric free of oil stains.
What is the price of the JACK A4C and the MAQI Q7T?
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.