短应力线轧机具有刚度大、产品精度高、设备重量轻，操作简单，尤其是“在线快速更换轧机”的特点，使得其成为目前国内棒、线材厂轧钢作业中的主导机型。短应力线轧机大致可分为机架式和框架式两种。如图1所示。(其他只是在平衡方式、轴向调整机构、压下机构、组装方式上等稍有差别，基本结构相同。

       Short-stress line rolling mill has the characteristics of high rigidity, high precision, light weight, simple operation, especially "on-line rapid replacement mill", which makes it become the leading model in domestic bar and wire mill rolling operation. Short stress line mill can be roughly divided into frame type and frame type. See Figure 1. (Others are only slightly different in the balancing method, axial adjustment mechanism, pressing mechanism, assembly method, etc., the basic structure is the same.

       轧机受到的轧制力通过轧辊、轧辊轴承、箱体、铜螺母、拉杆等各受力部件的内应力行成一个闭合的环线，即应力线。轧机底座和压下机构不受轧制力，应力线较普通轧机短，提高了轧机强度，减少了轧机的弹性变形，所以称为“短应力线轧机” 。

       The rolling force of the rolling mill is formed into a closed loop line through the internal stress of the roller, roll bearing, box, copper nut, tie rod and other stress components, namely, the stress line. The base and the pressing mechanism of the rolling mill are free from rolling force, and the stress line is shorter than that of the ordinary rolling mill, which improves the strength of the rolling mill and reduces the elastic deformation of the rolling mill, so it is called "short stress line rolling mill".