性能与特点：本机结构型式为三辊对称式，上辊在两下辊中央对称位置作垂直升降运动，通过液压缸内的液压油作用于活塞而获得，为液压传动；两下辊作旋转运动，通过减速机的输出齿轮与下辊齿啮合，为卷制板材提供扭矩。本机床结构紧凑，操作维修方便。

Structure  and  Features
The construction of this machine is in the form of three roller symmetry. the top roller, in the central symmetry position over the two bottom rollers, does vertical motion up and down through screw, nut and wormtransmission . Decelerator gears bottom rollers providing torsion moment for coiling sheet metal. The construction of the machine is compact.Operation and maintenance is convenient.

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