Swami Enterprises

Lockstitch comparison

JACK F6 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 F6 lockstitch machine
JACK · Lockstitch

JACK F6

Direct-drive computerized lockstitch machine running up to 5000 s.p.m. on a built-in silent servo motor, with oil-free semi-dry lubrication and a built-in thread-cutting knife for shirts, wovens and uniform work.

shirtswovensuniformsinstitutional garments
MAQI LS3820DP lockstitch machine
MAQI · Lockstitch

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.

garments

Key differences

Specifications side by side

SpecificationJACK F6MAQI LS3820DP
SeriesLockstitch, direct driveListed as Lockstitch by MAQI; product page names it a chain stitch machine
NeedleDBx1, 11-18#Curved-needle construction
Number of threads2—
Max stitch length5mm—
Presser foot liftManual, knee-operated—
Max sewing speed5000 s.p.m.—
MotorBuilt-in silent, energy-saving servo motor—
LubricationSemi-dry head, oil-free—
Thread trimmingBuilt-in knife, manual—
AvailabilityIn stockOrder on request
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 F6 if…

Direct-drive computerized lockstitch machine running up to 5000 s.p.m. on a built-in silent servo motor, with oil-free semi-dry lubrication and a built-in thread-cutting knife for shirts, wovens and uniform work.

  • Built-in servo motor
  • Built-in thread-cutting knife
  • Oil-free semi-dry head

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 F6 and the MAQI LS3820DP?

Series: JACK F6 — Lockstitch, direct drive; MAQI LS3820DP — Listed as Lockstitch by MAQI; product page names it a chain stitch machine. Needle: JACK F6 — DBx1, 11-18#; MAQI LS3820DP — Curved-needle construction. Availability: JACK F6 — In stock; MAQI LS3820DP — Order on request. Call to confirm today's stock.

Which is better, the JACK F6 or the MAQI LS3820DP?

It depends on your fabric, operation and daily volume. The JACK F6 is described as: Direct-drive computerized lockstitch machine running up to 5000 s.p.m. on a built-in silent servo motor, with oil-free semi-dry lubrication and a built-in thread-cutting knife for shirts, wovens and uniform work. 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 F6 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.

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