Lockstitch comparison
JACK JK-58450J vs JACK A6F-E: 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 shirts, wovens, garments.
JACK JK-58450J
Double-needle computerized lockstitch with auto cornering and a large sewing space — built-in presser-foot lifter, one-shaft drive.
JACK A6F-E
Digital needle-feed computerized lockstitch with a sealed oil pan and a large 300mm sewing space — feeds smoothly with no short thread tail.
Key differences
- JACK A6F-E lists the higher top speed: 4000 s.p.m. against 3000 s.p.m.
- Series: JACK JK-58450J — Lockstitch, double needle; JACK A6F-E — Lockstitch, needle feed.
- Needle: JACK JK-58450J — DPx5, multiple gauges; JACK A6F-E — DBx1, 11-18# / DPx5, 18-21#.
- Best for: JACK JK-58450J — Umbrella, denim, T-shirt (chain-stitch work); JACK A6F-E — Shirts, suits, pants, down jackets.
- Availability: JACK JK-58450J — Order on request; JACK A6F-E — Order on request. Call to confirm today's stock.
Specifications side by side
| Specification | JACK JK-58450J | JACK A6F-E |
|---|---|---|
| Series | Lockstitch, double needle | Lockstitch, needle feed |
| Needle | DPx5, multiple gauges | DBx1, 11-18# / DPx5, 18-21# |
| Max sewing speed | Up to 3000 s.p.m. | Up to 4000 s.p.m. |
| Feature | Auto cornering, built-in presser-foot lifter | — |
| Best for | Umbrella, denim, T-shirt (chain-stitch work) | Shirts, suits, pants, down jackets |
| Availability | Order on request | Order on request |
| Sewing space | — | 300mm, large operating area |
| Lubrication | — | Sealed oil pan, no oil stains |
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 JK-58450J if…
Double-needle computerized lockstitch with auto cornering and a large sewing space — built-in presser-foot lifter, one-shaft drive.
- Auto cornering
- Built-in presser-foot lifter
Choose the JACK A6F-E if…
Digital needle-feed computerized lockstitch with a sealed oil pan and a large 300mm sewing space — feeds smoothly with no short thread tail.
- 300mm sewing space
- Sealed, stain-free oil pan
Swami Enterprises is an authorized JACK dealer and importer. 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 JK-58450J and the JACK A6F-E?
JACK A6F-E lists the higher top speed: 4000 s.p.m. against 3000 s.p.m. Series: JACK JK-58450J — Lockstitch, double needle; JACK A6F-E — Lockstitch, needle feed. Needle: JACK JK-58450J — DPx5, multiple gauges; JACK A6F-E — DBx1, 11-18# / DPx5, 18-21#.
Which is better, the JACK JK-58450J or the JACK A6F-E?
It depends on your fabric, operation and daily volume. The JACK JK-58450J is described as: Double-needle computerized lockstitch with auto cornering and a large sewing space — built-in presser-foot lifter, one-shaft drive. The JACK A6F-E is described as: Digital needle-feed computerized lockstitch with a sealed oil pan and a large 300mm sewing space — feeds smoothly with no short thread tail.
What is the price of the JACK JK-58450J and the JACK A6F-E?
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.