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Yarn hand driven twist test
2019/03/29
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Description:
Latest version of the hand-operated twist tester for twist measurement on a wide range of single yarns, plied spun yarns, multifilament,OE yarns and industrial yarns.
Technical features
· Adjustable distance between clamps from 1 to 50 cm (from 0.39” up to 19.7”)
· Suitable for yarns with a count range Nm 0.5 - 200 Nm(Tex 50 – 2000)
· Pre-selection of 2 test methods:
A) Traditional method: untwisting, retwisting, for single spun yarns
B) Direct method: untwisting for plied yarns, threads and multifilament yarns.
· Electronic counting of number of turns displayed on 8-digit digitals display (accuracy +/-1 turn)
· Endowed with high precision elongation mechanism/device equipped with a graduated scale, a mechanical block for limiting the moving clamp movement (to be positioned according to the maximum yarn lengthening) and led control of “Start” and “Stop” function. Pretension system with pulleys ensure maximum precision of yarn pre-tension setting and control during the test in compliance with international Standards (optionals)
· Special elongation scale is available on request for dipped
tyre-cord
· Yarn pretension system up to 70 cN by means of combinable weights. Set of additional weights available for industrial yarns (optional)
· Winch for mandrel rotation with transmission ratio 1:10
Included accessories
· magnifying lens
· 500mm fixed calliper to check the distance between the fixed and the moving clamp
· Set of weights: 2 cN, 3 cN, 4 cN, 5 cN, 7 cN, 10 cN, 15 cN,20 cN, 30 cN, which can be combined to obtain a maximum pretension weight of 70 cN
· Bobbin holder suitable for défilé and deroulé bobbin unwinding
Optional
· Pretension weights for industrial yarns (1N, 1.50N, 2N) code 2531.104
· Calibration report code 2530.CC1
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