ACUTE ROUND POINT "SPI"

Schmetz 2018 SPI / 175X3 SPI / TQX3 SPI Industrial Sewing Machine Needles – Acute Round Point

Engineered for accuracy and fabric care, these Schmetz SPI (Acute Round Point) needles are specially designed for high-precision industrial sewing applications. With a very slim point, these needles offer exceptional piercing accuracy, making them ideal for button sewing on densely woven and coated fabrics.

The SPI point is perfect for avoiding seam puckering and creating clean, tight stitches on delicate or high-end textiles. Suitable for sewing silk, taffeta, microfabrics, or synthetic coatings where needle precision and fabric integrity are essential.

These needles fit needle systems 2018, 175X3, and TQX3, with reference CANU 44:15MA1—ensuring compatibility with a range of industrial sewing machines.

Needle Specifications:

• Customary Needle Designations: 2018 SPI, 175X3 SPI, TQX3 SPI

• CANU: 44:15MA1

• Point Style: SPI (Acute Round Point)

• Type of Coating: Chrome

• Shank Diameter: 1.75 mm

• Overall Length: 44.7 mm

• Length to Eye: 41.4 mm

• Needle Form: Straight needle with single groove and scarf

• Stitch Type Class: 100, 300

• Application: Button Sewing

• Brand: Schmetz – German Precision and Quality

Applications / Examples of Use:

• Button sewing on:

  • Very densely woven materials (e.g. silk, microfabrics)

  • Thin coated fabrics

  • Lightweight synthetics (e.g. taffeta)

  • Shirt collars and cuffs

  • Fur garments and skins

  • Fabrics with non-covered elastomeric threads