Speed adjustment by axis continuously variable transmission for upper mold, and by pulley for lower mold.
上模轴心采用无段变速器器调速，下模采用皮带轮调速，上模有位移功能。
2
It has more and faster hoist speed and various pulley ratio which can be selected.
具有更快更多的起吊速度和多种滑轮倍率可供选择。
3
Pulleys are on the market that permit an adjustment in the width of the groove. The effective pitch diameter of the pulley is thus varied, and moderate changes in the speed ratio can be secured.