三辊卷板机的机架为铸件，机架中上辊与下辊以及上辊与侧辊之间的衔接局部厚度很小，辊子与轴承座之间采用的是铜套作爲滑动轴承。另外三辊卷板机又由于轴承座在卷制板材时辊子的非接触侧承载，轴承座设计如图中所示。所以在卷制板材时辊子之间可以完成零间隔接触，可以卷制工件的最小筒径尺寸很小。该机在最大规格时可以卷制的最小筒径为1300mm，而国际相反规格三辊三辊卷板机远远达不到这一尺寸。三辊卷板机下辊是由装在辊子轴承座上面的斜体往复挪动来控制。

当下辊夹紧板材三辊卷板机开端任务时，在下辊挪动驱动力不大的状况下，此时下辊可以接受宏大的压力。该机的斜体可以将下辊所受的载荷无效地传到空中上。此时斜体具有自然的自锁功用并可以坚持足够的夹紧力直至工序的完成。又由于辊子与轴承之间采用的是铜套滑动轴承衔接，辊子的承载局部可以设计的绝对较大辊子的任务局部直径为1168mm，两端的承载局部为883mm和922mm，与辊子的任务局部相差不多。所以该三辊卷板机的承载才能强，可以卷制板材的最大厚度为 220mm。

At the beginning of the task of the lower roller clamping plate three-roller coiler, the lower roller can accept great pressure when the driving force of the lower roller is not large. The italic body of the machine can transmit the load borne by the lower roll ineffectually to the air. At this point, italics have a natural self-locking function and can adhere to enough clamping force until the completion of the process. In addition, because the copper sleeve sliding bearing is used between the roller and the bearing, the bearing part of the roller can be designed to be absolutely large. The local diameter of the task of the roller is 1168mm, and the bearing part of both ends is 883mm and 922mm, which is similar to the task part of the roller. Therefore, the bearing capacity of the three-roll plate coiler can be strong, and the maximum thickness of the plate can be rolled up to 220mm.