Lockstitch comparison
JACK 5559F vs SINGER SS 9900 T: 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 wovens, garments.

JACK 5559F
Lockstitch machine with a digital edge cutter and stepping-motor presser-foot lift, running up to 4000 s.p.m. for shirts, suits, pants and down jackets.

SINGER SS 9900 T
SINGER's SS 9900 T is the SS 9900 fitted with an auto thread trimmer and single-shaft mechanism, for single-needle lockstitch work with faster changeovers between pieces.
Key differences
- SINGER SS 9900 T lists an automatic thread trimmer; JACK 5559F does not list one.
Specifications side by side
| Specification | JACK 5559F | SINGER SS 9900 T |
|---|---|---|
| Series | Lockstitch, digital edge cutter | — |
| Needle | DBx1, 11-18# | — |
| Max sewing speed | Up to 4000 s.p.m. | — |
| Feature | Stable built-in edge cutter, stepping-motor foot lift | — |
| Best for | Shirts, suits, pants, down jackets | — |
| Availability | Order on request | — |
| Motor | — | Qixing motor & control box |
| Thread trimming | — | Automatic |
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 5559F if…
Lockstitch machine with a digital edge cutter and stepping-motor presser-foot lift, running up to 4000 s.p.m. for shirts, suits, pants and down jackets.
- Digital edge cutter
- Stepping-motor foot lift
- Runs up to 4000 s.p.m.
Choose the SINGER SS 9900 T if…
SINGER's SS 9900 T is the SS 9900 fitted with an auto thread trimmer and single-shaft mechanism, for single-needle lockstitch work with faster changeovers between pieces.
Swami Enterprises is an authorized JACK dealer and importer. Swami Enterprises stocks SINGER 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 5559F and the SINGER SS 9900 T?
SINGER SS 9900 T lists an automatic thread trimmer; JACK 5559F does not list one.
Which is better, the JACK 5559F or the SINGER SS 9900 T?
It depends on your fabric, operation and daily volume. The JACK 5559F is described as: Lockstitch machine with a digital edge cutter and stepping-motor presser-foot lift, running up to 4000 s.p.m. for shirts, suits, pants and down jackets. The SINGER SS 9900 T is described as: SINGER's SS 9900 T is the SS 9900 fitted with an auto thread trimmer and single-shaft mechanism, for single-needle lockstitch work with faster changeovers between pieces.
What is the price of the JACK 5559F and the SINGER SS 9900 T?
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.