We have both drawing die box and rolling cassette during the wire drawing process. For different wire applications and roundness requirements, customer could choose the drawing dies or rollers accordingly.
They are different structures and working principles but same mount position and functions.
For the rolling cassette, there are totally 8 rollers mounted inside of the cassette, when the wire passes through the central hole, the roller will press the wire horizontally and vertically to make it round with smaller size. Without any lubricant powder, the rolling cassette will be more friendly to the environment. Customer only needs to add the lubrication grease for the bearings.