Lockstitch comparison
JACK JK-58450J vs JACK A2C: 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 A2C
Computerized single-needle lockstitch machine with auto thread trimmer, from Jack’s A-series. Ask us for current stock and pricing.
Key differences
- JACK A2C lists the higher top speed: 5000 s.p.m. against 3000 s.p.m.
- JACK A2C lists an automatic thread trimmer; JACK JK-58450J does not list one.
- Series: JACK JK-58450J — Lockstitch, double needle; JACK A2C — Lockstitch (A-series).
- Needle: JACK JK-58450J — DPx5, multiple gauges; JACK A2C — DBx1, 11-18#.
- Best for: JACK JK-58450J — Umbrella, denim, T-shirt (chain-stitch work); JACK A2C — General garment stitching, production lines.
- Availability: JACK JK-58450J — Order on request; JACK A2C — Order on request. Call to confirm today's stock.
Specifications side by side
| Specification | JACK JK-58450J | JACK A2C |
|---|---|---|
| Series | Lockstitch, double needle | Lockstitch (A-series) |
| Needle | DPx5, multiple gauges | DBx1, 11-18# |
| Max sewing speed | Up to 3000 s.p.m. | 5000 s.p.m. |
| Feature | Auto cornering, built-in presser-foot lifter | — |
| Best for | Umbrella, denim, T-shirt (chain-stitch work) | General garment stitching, production lines |
| Availability | Order on request | Order on request |
| Number of threads | — | 2 |
| Max stitch length | — | 5mm |
| Presser foot lift (hand/auto) | — | 13mm / 6mm |
| Motor | — | Direct-drive servo, up to 5.5Nm torque |
| Controls | — | Manual bartack lever, knee-operated presser lift |
| Feed | — | Computerized, auto-trimmer, auto backtack |
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 A2C if…
Computerized single-needle lockstitch machine with auto thread trimmer, from Jack’s A-series. Ask us for current stock and pricing.
- 5.5Nm direct-drive torque
- Auto trim + auto backtack
- Knee-operated presser lift
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 A2C?
JACK A2C lists the higher top speed: 5000 s.p.m. against 3000 s.p.m. JACK A2C lists an automatic thread trimmer; JACK JK-58450J does not list one. Series: JACK JK-58450J — Lockstitch, double needle; JACK A2C — Lockstitch (A-series).
Which is better, the JACK JK-58450J or the JACK A2C?
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 A2C is described as: Computerized single-needle lockstitch machine with auto thread trimmer, from Jack’s A-series. Ask us for current stock and pricing.
What is the price of the JACK JK-58450J and the JACK A2C?
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.