【use】
Y331A Electronic Yarn Twist Tester is used to determine the twist of various cotton, wool, silk, chemical fiber and other yarns, rovings and strands. The characteristics of this machine are: stable performance and convenient operation. It is suitable for cotton spinning, wool spinning, knitting, One of the main conventional testing instruments in silk and other industries and technology fields.

【Features】
1. Features: The use of man-machine dialogue, and display the final result, LCD display, simplify the operation.
2. It is convenient to adjust the zero position and has a data storage function. Using single-chip microcomputer control to ensure the accuracy of action.
3. Control part: use high-power triode to avoid interference caused by the pull-in of the relay and enhance the stability of the machine.
4. During operation, test data can be inquired at any time.
5. Complete functions (direct counting method, untwisting A method, untwisting B method, three untwisting and twisting method), in line with GB, ISO and other standards.

[Applicable standards]
GB/T2543.1-2001 Textiles-Determination of yarn twist-Part 1: Direct counting method
GB/T 2543.2-2001 Textiles-Determination of yarn twist-Part 2: Untwisting and twisting method
FZ/T10001-2016 Determination of twist of air flow yarn untwisting method, ISO2061; ASTM D1422, 1423; JIS L1095, etc.

[Main technical parameters of the instrument]
1. Test method: direct counting, untwisting and twisting (one time, two times, three times)
2. Test length: 25, 50, 100, 250, 500mm
3. Rotary clamp speed: 750r/min, 1500r/min and jog speed (adjustable)
4. Twist test range: 1～9999.9 twist/10cm
5. Untwisting elongation range: maximum 40mm (indicated by scale)
6. Pre-tensioning: 0～130cN (0-20cn tension scale)
7. Equipment dimensions: 1000mm×200mm×300mm (length×width×height)