This instrument is used to determine the hardness for yarn bobbins, warp beams etc. to avoid a damage of bobbins and warp beams it is equipped with a ball shaped indentation body. The covered distance of the indentation ball is proportional to the winding hardness and its transmitted by means of a movement ) r=55mm), for bobbins with a diameter of more then 400mm a flat working face is recommended. Depending on the material to be tested. Hardness tester with an indentation ball of 2.50mm, 5 0 mm or 10 0 mm are available
  Website Designed by: ebizpromo