Lockstitch comparison
JACK A4C vs MAQI Q7Ls: 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 Q7Ls
MAQI's Q7Ls is a two-step-motor lockstitch machine from MAQI's large-sewing-space "THE-MAX" line — stepper-driven double-knife thread cutting that leaves a roughly 3mm thread tail, a sensorless easy-lift knee support, closed automatic lubrication, and optional nest-free (basting-free) technology.
Key differences
- JACK A4C lists an automatic thread trimmer; MAQI Q7Ls does not list one.
- Series: JACK A4C — Lockstitch (A-series, AI-integrated); MAQI Q7Ls — Lockstitch, THE-MAX large sewing space.
- Motor: JACK A4C — Direct-drive integrated servo motor; MAQI Q7Ls — Two step motors ("two-drive").
- Availability: JACK A4C — Order on request; MAQI Q7Ls — Order on request. Call to confirm today's stock.
Specifications side by side
| Specification | JACK A4C | MAQI Q7Ls |
|---|---|---|
| Series | Lockstitch (A-series, AI-integrated) | Lockstitch, THE-MAX large sewing space |
| Needle | DBx1, 11-18# | — |
| Number of threads | 2 | — |
| Max stitch length | 5mm | — |
| Presser foot lift (hand/auto) | 13mm / 6mm | — |
| Max sewing speed | 5000 s.p.m. | — |
| Control system | Jack NTB system with Octopus "Nine-Brain" AI chip | — |
| Motor | Direct-drive integrated servo motor | Two step motors ("two-drive") |
| Feed | Computerized, auto-trimmer, auto backtack, auto foot lift | — |
| Availability | Order on request | Order on request |
| Thread trimming | — | Stepper double-knife, ultra-short ~3mm thread tail |
| Knee support | — | Sensorless, easy-lift |
| Lubrication | — | Closed oil pan, automatic |
| Options | — | Nest-free (basting-free) technology |
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 Q7Ls if…
MAQI's Q7Ls is a two-step-motor lockstitch machine from MAQI's large-sewing-space "THE-MAX" line — stepper-driven double-knife thread cutting that leaves a roughly 3mm thread tail, a sensorless easy-lift knee support, closed automatic lubrication, and optional nest-free (basting-free) technology.
- Two step-motor drive
- Ultra-short thread trim
- Sensorless knee support
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 Q7Ls?
JACK A4C lists an automatic thread trimmer; MAQI Q7Ls does not list one. Series: JACK A4C — Lockstitch (A-series, AI-integrated); MAQI Q7Ls — Lockstitch, THE-MAX large sewing space. Motor: JACK A4C — Direct-drive integrated servo motor; MAQI Q7Ls — Two step motors ("two-drive").
Which is better, the JACK A4C or the MAQI Q7Ls?
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 Q7Ls is described as: MAQI's Q7Ls is a two-step-motor lockstitch machine from MAQI's large-sewing-space "THE-MAX" line — stepper-driven double-knife thread cutting that leaves a roughly 3mm thread tail, a sensorless easy-lift knee support, closed automatic lubrication, and optional nest-free (basting-free) technology.
What is the price of the JACK A4C and the MAQI Q7Ls?
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.