HY0381 Series Yarn Examine Machine is used to assess the evenness, hairiness, neps and other imperfections in a representative sample of various yarn wound at a pre-determined yarn density onto a quadrate/tapered black or white board. This instrument complies with the following international and industry standards. ASTM: ASTM D2255. FZ/T: FZ/T 32004. GB/T: GB/T 398. Technical Specification Model: HY0381HY0381AHY0381MBoard size220×250mm(L×W)575mm×250mm×160mm(L×W1×W2)300×225mm(L×W)Board shapequadratetaperedquadrate Yarn winding: density7, 9, 11, 13, 15, 19wraps/cm35, 40, 45, 50wraps/10cm Rotational speed: 10~400RPM (adjustable) Power supply: AC220V 50Hz, 55W Dimensions: (L×W×H)620×370×340mm1000×370×300mm620×370×340mm Weight: 30Kg35Kg30Kg