NEA型旋转式机械夹头 NEA-type rotary & mechanical chuck 夹头种类很多，细分各有其用途。夹头广泛运用于卷取喝放料的各种机械上，此旋转迫紧夹头是运用简单的滑动原理，使扇形结构扩张固定料管并自动对心，这种夹头使得料管可多次重复使用，以减少料管损失。 There are many kinds of chucks for different applications. They are applied widely to various winding or unwinding machines.This rotary packing chuck adopts simple sliding principle that fanshaped structure expands to fix roll and aligns automatically, which can make roll multi-repeat use and reduce its wearout.