Lockstitch comparison
JACK S7 vs MAQI LS3820DP: 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 garments.
JACK S7
Jack’s current digitalized post-bed machine — three independent stepper motors and a 5-inch touch screen for accurate, noiseless roller-feed sewing.
MAQI LS3820DP
MAQI lists the LS3820DP under its Lockstitch series, but its own product page names it a "direct drive chain stitch sewing machine" with a curved-needle construction and a puller/feed panel — closer to a chainstitch/blind-stitch head than a standard lockstitch. Confirm the exact stitch type with a specialist before ordering.
Key differences
- Series: JACK S7 — Post bed, digitalized; MAQI LS3820DP — Listed as Lockstitch by MAQI; product page names it a chain stitch machine.
- Availability: JACK S7 — Order on request; MAQI LS3820DP — Order on request. Call to confirm today's stock.
Specifications side by side
| Specification | JACK S7 | MAQI LS3820DP |
|---|---|---|
| Series | Post bed, digitalized | Listed as Lockstitch by MAQI; product page names it a chain stitch machine |
| Motors | 3 stepper motors (needle bar + two rollers) plus main shaft motor | — |
| Screen | 5-inch multilanguage touch screen | — |
| Thread trimmer | Short-thread cut to 3mm precision | — |
| Perforation capacity | Penetrates 110+ layers of A4 paper | — |
| Connectivity | Industry 4.0 WiFi module (optional) | — |
| Best for | Shirts, jeans, non-woven bags, shoes, bags | — |
| Availability | Order on request | Order on request |
| Needle | — | Curved-needle construction |
| Feed | — | Linkage part, puller/feed panel |
| Speed/oil | — | Low speed, oil-supplied head |
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 S7 if…
Jack’s current digitalized post-bed machine — three independent stepper motors and a 5-inch touch screen for accurate, noiseless roller-feed sewing.
- 3 stepper motors + main shaft
- 3mm-precision thread trim
- 110+ layer perforation capacity
Choose the MAQI LS3820DP if…
MAQI lists the LS3820DP under its Lockstitch series, but its own product page names it a "direct drive chain stitch sewing machine" with a curved-needle construction and a puller/feed panel — closer to a chainstitch/blind-stitch head than a standard lockstitch. Confirm the exact stitch type with a specialist before ordering.
- Curved-needle construction
- Puller feed panel
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 S7 and the MAQI LS3820DP?
Series: JACK S7 — Post bed, digitalized; MAQI LS3820DP — Listed as Lockstitch by MAQI; product page names it a chain stitch machine. Availability: JACK S7 — Order on request; MAQI LS3820DP — Order on request. Call to confirm today's stock.
Which is better, the JACK S7 or the MAQI LS3820DP?
It depends on your fabric, operation and daily volume. The JACK S7 is described as: Jack’s current digitalized post-bed machine — three independent stepper motors and a 5-inch touch screen for accurate, noiseless roller-feed sewing. The MAQI LS3820DP is described as: MAQI lists the LS3820DP under its Lockstitch series, but its own product page names it a "direct drive chain stitch sewing machine" with a curved-needle construction and a puller/feed panel — closer to a chainstitch/blind-stitch head than a standard lockstitch. Confirm the exact stitch type with a specialist before ordering.
What is the price of the JACK S7 and the MAQI LS3820DP?
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.