Description
Sewing Machines Using GM Pfaff Syst 190R Needles
The GM Pfaff Syst 190R (also labeled MTX190 or SY7555) is a standard round-point needle system used in many Pfaff industrial sewing machines. It has a 44.5 mm length and 2.0 mm shank diameter, and is designed for heavy-duty sewing on a variety of fabrics
Compatible Pfaff Models
Needles in the 190R system fit a wide range of Pfaff industrial machines, including but not limited to
- Subclasses from models: 28, 143, 145, 146, 190, 195
- Other common models: 335, 343, 344, 390, 543, 544, 545, 546, 555, 593, 594, 595, 596
- Large format/industrial series: 1240, 1245, 1246, 1545, 3006, 3125, 3135, 4145
These models cover both garment construction and industrial/office sewing applications, from light to extra-heavy fabrics.
Needle Sizes in 190R System
Within the 190R system, you can choose needle diameters (Singer sizes) to match fabric weight
- #12 (80) – light to medium fabrics
- #14 (90) – medium fabrics
- #16 (100) – medium-heavy fabrics
- #18 (110) – heavy fabrics
- #19 (120) – heavy fabrics
- #20 (125) – heavy fabrics
- #21 (130) – heavy to extra-heavy fabrics
- #22 (140) – heavy to extra-heavy fabrics
- #23 (160) – extra-heavy fabrics
- #24 (180) – extra-heavy fabrics
- #25 (200) – largest size for extra-heavy fabrics
Summary
If your sewing machine uses GM Pfaff Syst 190R needles, it is almost certainly a Pfaff industrial model from the list above. The needle system is standardized, so the same 190R needles will work across these models, but you should choose the correct diameter for your fabric weight to ensure clean, durable stitches.



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