The automatic yarn twist tester is a motor-driven device designed for accurately measuring the turns per meter (TPM) or turns per inch (TPI) of single and plied yarns. It is suitable for both S and Z type twisted yarns. The instrument typically uses methods such as the direct counting method or the untwist/re-twist method. Key features include
Specification/Features
- Yarn Test Length: Adjustable, typically ranging from 25 mm to 500 mm (or 1 inch to 20 inches).
- Measurement Range: Up to 9999 TPM or 99.99 TPI.
- Resolution: 1 TPM or 0.01 TPI.
- Motor Speed: Up to 1500 RPM, adjustable.
- Tensioning: Adjustable tension weights, often up to 100 grams
