Lockstitch comparison
JACK JK-58450J vs JACK H2: 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 H2
Direct-drive top-and-bottom feeding lockstitch for heavy duty — strong feeding, big stitch length, built for sofas, car seats, luggage and bags.
Key differences
- JACK JK-58450J lists the higher top speed: 3000 s.p.m. against 2000 s.p.m.
- Series: JACK JK-58450J — Lockstitch, double needle; JACK H2 — Heavy-Duty, top feed.
- Needle: JACK JK-58450J — DPx5, multiple gauges; JACK H2 — DPx17, 20-23#.
- Best for: JACK JK-58450J — Umbrella, denim, T-shirt (chain-stitch work); JACK H2 — Sofa, car seat, luggage, gloves, bags.
- Availability: JACK JK-58450J — Order on request; JACK H2 — Order on request. Call to confirm today's stock.
Specifications side by side
| Specification | JACK JK-58450J | JACK H2 |
|---|---|---|
| Series | Lockstitch, double needle | Heavy-Duty, top feed |
| Needle | DPx5, multiple gauges | DPx17, 20-23# |
| Max sewing speed | Up to 3000 s.p.m. | Up to 2000 s.p.m. |
| Feature | Auto cornering, built-in presser-foot lifter | — |
| Best for | Umbrella, denim, T-shirt (chain-stitch work) | Sofa, car seat, luggage, gloves, bags |
| Availability | Order on request | Order on request |
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 H2 if…
Direct-drive top-and-bottom feeding lockstitch for heavy duty — strong feeding, big stitch length, built for sofas, car seats, luggage and bags.
- Top & bottom direct-drive feed
- Heavy-duty needle
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 H2?
JACK JK-58450J lists the higher top speed: 3000 s.p.m. against 2000 s.p.m. Series: JACK JK-58450J — Lockstitch, double needle; JACK H2 — Heavy-Duty, top feed. Needle: JACK JK-58450J — DPx5, multiple gauges; JACK H2 — DPx17, 20-23#.
Which is better, the JACK JK-58450J or the JACK H2?
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 H2 is described as: Direct-drive top-and-bottom feeding lockstitch for heavy duty — strong feeding, big stitch length, built for sofas, car seats, luggage and bags.
What is the price of the JACK JK-58450J and the JACK H2?
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.