叉车液压缸活塞、活塞杆上的密封,均采用聚氨脂橡胶制成的YX形密封圈。其优点是密封性、耐磨性和耐油性好。缺点是安装不便,装配时必须要将油封的唇边一点一点地塞进缸筒或导向套内,稍不注意,极易使唇边翻卷或损坏,往往需多次重复进行。冬季因密封圈的塑性变差,安装更加困难,既费时又不能保证装配质量。为此,我们制作了安装密封圈的工 Forklift hydraulic cylinder piston, piston rod seal, are made of polyurethane rubber YX-shaped seal. The advantage is good sealing, wear resistance and oil resistance. The disadvantage is that the installation is inconvenient, the assembly must seal the lip of the seal a little bit into the cylinder or guide sleeve, a little careless, easy to make the lips rolled or damaged, often repeated several times. Due to the deterioration of the plastic seal in the winter, the installation is more difficult, both time-consuming and can not guarantee the assembly quality. To this end, we made the installation of seals workers