西德考赫(Koch)公司设计制造了一种水箱拉丝机,称 KNH 系列拉丝机,可供拉拔高合金钢丝使用,其中包括拉拔不锈钢丝。在作拉丝机结构设计时考虑到在各个拉拔道次中使钢丝仅受到很小的弯曲,从而可以提高钢丝使用寿命。拉丝机由铸件和焊接件制成,牵引塔轮水平布置,塔轮呈截头圆锥形。拉丝机配有上下两个水箱,供润滑液 Koch designs and manufactures a water tank wire drawing machine, called the KNH series wire drawing machine, for the drawing of high-alloy steel wire, including the drawing of stainless steel wire. In the drawing machine structure design, it is considered that the steel wire is only slightly bent at each drawing pass, so that the service life of the steel wire can be improved. Drawing machine made of castings and welded parts, traction tower horizontal arrangement, the tower was frustoconical. Drawing machine with two tanks up and down for lubrication