丝袜美腿护士办公室在线观看,国产综合区,欧美亚洲一级片,久久综久久美利坚合众国,a在线免费视频,精品欧美成人高清视频在线观看,交视频在线观看国产网站

YJZ60B hydraulic straightening machine is specially designed for the straightening of H-shaped steel flanges in the steel structure industry, and is a very versatile applied hydraulic heavy-duty straightening machine. Compared with the traditional “over-top” hydraulic straightening machine, its main advantages are: the straightening process of small steel parts does not need to replace any accessories; because the straightening form of this machine is the “press roller down-pressing type”, there is no need to operate traditional hydraulic straightening by lifting roller table of the machine,which simplifies the operation process and overcomes the disadvantages of frequent damage to the roller table caused by improper operation; because the transmission roller table does not need to be lifted and the structure is simplified, the carrying capacity is further improved and the function failure rate is lower. This equipment has the following advantages:

1. The base adopts integral welding and processing, with good strength and high processing accuracy;

2. The machine has a symmetrical structure, the input and output directions are interchangeable, and the installation and use are flexible and convenient;

3. The pressure roller bearing is rear-mounted, the outer diameter is smaller, and the range of processed steel part is increased;

4. The horizontal movement of the vertical frame is driven by an hydraulic cylinder, which increases work efficiency and reduces labor;

5. The web clamping device can adjust the height, which is more stable when straightening tall sizes and large sizes workpieces;

6. The front and rear conveying rollers are all welded by rectangular pipes, with good strength and small deformation.