Lockstitch comparison
JACK A4C vs MAQI LS9520DP/QB: 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.
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 LS9520DP/QB
MAQI's LS9520DP/QB is a direct-drive lockstitch machine with a built-in edge cutter and QB (wrapping) construction, aimed at seams on bags and heavier material that need a trimmed, wrapped edge in the same pass.
Key differences
- JACK A4C lists an automatic thread trimmer; MAQI LS9520DP/QB does not list one.
- Series: JACK A4C — Lockstitch (A-series, AI-integrated); MAQI LS9520DP/QB — Lockstitch, direct drive, with edge cutter.
- Availability: JACK A4C — Order on request; MAQI LS9520DP/QB — Order on request. Call to confirm today's stock.
Specifications side by side
| Specification | JACK A4C | MAQI LS9520DP/QB |
|---|---|---|
| Series | Lockstitch (A-series, AI-integrated) | Lockstitch, direct drive, with edge cutter |
| 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 | — |
| Feed | Computerized, auto-trimmer, auto backtack, auto foot lift | — |
| Availability | Order on request | Order on request |
| Construction | — | QB wrapping construction |
| Cutter | — | Advanced cutter construction, quick and convenient |
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 LS9520DP/QB if…
MAQI's LS9520DP/QB is a direct-drive lockstitch machine with a built-in edge cutter and QB (wrapping) construction, aimed at seams on bags and heavier material that need a trimmed, wrapped edge in the same pass.
- QB wrapping construction
- Quick edge cutter
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 LS9520DP/QB?
JACK A4C lists an automatic thread trimmer; MAQI LS9520DP/QB does not list one. Series: JACK A4C — Lockstitch (A-series, AI-integrated); MAQI LS9520DP/QB — Lockstitch, direct drive, with edge cutter. Availability: JACK A4C — Order on request; MAQI LS9520DP/QB — Order on request. Call to confirm today's stock.
Which is better, the JACK A4C or the MAQI LS9520DP/QB?
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 LS9520DP/QB is described as: MAQI's LS9520DP/QB is a direct-drive lockstitch machine with a built-in edge cutter and QB (wrapping) construction, aimed at seams on bags and heavier material that need a trimmed, wrapped edge in the same pass.
What is the price of the JACK A4C and the MAQI LS9520DP/QB?
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.