Lockstitch comparison
JACK A4C vs JACK A5E-B AMH2: 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 A4C
AI-integrated lockstitch machine running the Jack NTB control system with the Octopus "Nine-Brain" chip — direct-drive servo motor, auto thread trimmer, auto backtack and auto foot lift at up to 5000 s.p.m.
JACK A5E-B AMH2
AI-integrated computerized lockstitch with the largest operating space in its class — automatically adapts to changing fabric thickness mid-seam.
Key differences
- Both list the same top speed of 5000 s.p.m.
- Series: JACK A4C — Lockstitch (A-series, AI-integrated); JACK A5E-B AMH2 — Lockstitch (A-series), AI-integrated.
- Needle: JACK A4C — DBx1, 11-18#; JACK A5E-B AMH2 — DBx1, 11-18# / DPx5, 18-21#.
- Feed: JACK A4C — Computerized, auto-trimmer, auto backtack, auto foot lift; JACK A5E-B AMH2 — Auto-trimmer, auto backtack, auto foot lift.
- Availability: JACK A4C — Order on request; JACK A5E-B AMH2 — Order on request. Call to confirm today's stock.
Specifications side by side
| Specification | JACK A4C | JACK A5E-B AMH2 |
|---|---|---|
| Series | Lockstitch (A-series, AI-integrated) | Lockstitch (A-series), AI-integrated |
| Needle | DBx1, 11-18# | DBx1, 11-18# / DPx5, 18-21# |
| Number of threads | 2 | — |
| Max stitch length | 5mm | — |
| Presser foot lift (hand/auto) | 13mm / 6mm | — |
| Max sewing speed | 5000 s.p.m. | Up to 5000 s.p.m. |
| Control system | Jack NTB system with Octopus "Nine-Brain" AI chip | — |
| Motor | Direct-drive integrated servo motor | — |
| Feed | Computerized, auto-trimmer, auto backtack, auto foot lift | Auto-trimmer, auto backtack, auto foot lift |
| Availability | Order on request | Order on request |
| Operating space | — | 305 × 130mm — largest in its class |
| Best for | — | Shirts, suits, pants, down jackets |
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 A4C if…
AI-integrated lockstitch machine running the Jack NTB control system with the Octopus "Nine-Brain" chip — direct-drive servo motor, auto thread trimmer, auto backtack and auto foot lift at up to 5000 s.p.m.
- AI Nine-Brain chip
- Auto trim, backtack & foot lift
- Direct-drive servo motor
Choose the JACK A5E-B AMH2 if…
AI-integrated computerized lockstitch with the largest operating space in its class — automatically adapts to changing fabric thickness mid-seam.
- Largest-in-class workspace
- Adapts to fabric thickness
- Auto trim, backtack & foot 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 A4C and the JACK A5E-B AMH2?
Both list the same top speed of 5000 s.p.m. Series: JACK A4C — Lockstitch (A-series, AI-integrated); JACK A5E-B AMH2 — Lockstitch (A-series), AI-integrated. Needle: JACK A4C — DBx1, 11-18#; JACK A5E-B AMH2 — DBx1, 11-18# / DPx5, 18-21#.
Which is better, the JACK A4C or the JACK A5E-B AMH2?
It depends on your fabric, operation and daily volume. The JACK A4C is described as: AI-integrated lockstitch machine running the Jack NTB control system with the Octopus "Nine-Brain" chip — direct-drive servo motor, auto thread trimmer, auto backtack and auto foot lift at up to 5000 s.p.m. The JACK A5E-B AMH2 is described as: AI-integrated computerized lockstitch with the largest operating space in its class — automatically adapts to changing fabric thickness mid-seam.
What is the price of the JACK A4C and the JACK A5E-B AMH2?
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.