It is used to shake a variety of yarns on the standard blackboard to test and evaluate the quality grade of the yarn.
Blackboard specification
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250×180mm;250×220mm
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Yarn density
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ΦX4、7、9、11、13、15、19(root /cm)7
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Pretension
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10~90cN
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Blackboard speed
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200~400r/min
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Power supply
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Ac220V 50Hz 120W
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Shape size
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720×480×250mm
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Weight
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20kg
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