Lockstitch comparison
JACK H7 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.
JACK H7
Jack’s current top-feed heavy-duty lockstitch, replacing the older H5/H6 — pierces 10+ layers of leather with a fully digital, 16-level presser foot lift.
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 H7 — Heavy-Duty, digitalized top feed; MAQI LS3820DP — Listed as Lockstitch by MAQI; product page names it a chain stitch machine.
- Availability: JACK H7 — Order on request; MAQI LS3820DP — Order on request. Call to confirm today's stock.
Specifications side by side
| Specification | JACK H7 | MAQI LS3820DP |
|---|---|---|
| Series | Heavy-Duty, digitalized top feed | Listed as Lockstitch by MAQI; product page names it a chain stitch machine |
| Motor | 750W integrated motor | — |
| Presser foot lift | 16 adjustable levels, stepper-motor controlled | — |
| Stitch length | 1.3mm – 5.5mm, graduated adjustment | — |
| Material capability | Pierces 10+ layers of leather; handles 8 layers cleanly | — |
| Controls | Digital knee lifter with micro-lift, double-row LED lights | — |
| Best for | Sofa, car seat, luggage, gloves, bags, shoes | — |
| 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 H7 if…
Jack’s current top-feed heavy-duty lockstitch, replacing the older H5/H6 — pierces 10+ layers of leather with a fully digital, 16-level presser foot lift.
- 16-level stepper foot lift
- Pierces 10+ leather layers
- 1.3-5.5mm stitch range
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 H7 and the MAQI LS3820DP?
Series: JACK H7 — Heavy-Duty, digitalized top feed; MAQI LS3820DP — Listed as Lockstitch by MAQI; product page names it a chain stitch machine. Availability: JACK H7 — Order on request; MAQI LS3820DP — Order on request. Call to confirm today's stock.
Which is better, the JACK H7 or the MAQI LS3820DP?
It depends on your fabric, operation and daily volume. The JACK H7 is described as: Jack’s current top-feed heavy-duty lockstitch, replacing the older H5/H6 — pierces 10+ layers of leather with a fully digital, 16-level presser foot lift. 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 H7 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.