不管是運用卷板機的任何一個大小企業或類似卷板機廠家的工廠這種設備都必須要以防在加工呈現的走漏以及塵埃的落入都必須要設備有密封設備。卷板機液壓體系中起著密封效果的元件，即密封件，卷板機液壓體系中的密封件是用來避免流體或固體微粒從相鄰結合面間走漏以及避免外界雜質如塵埃與水分等侵入機器設備內部的零部件的資料或零件，卷板機液壓體系中的密封件外漏會形成作業介質的糟蹋，污染機器和環境，乃至引起機械操作失靈及設備人身事故。

No matter is any size enterprises use rolling machine or similar machine manufacturers to the factory this equipment must be in order to prevent the leakage and dust processing equipment must fall into a sealing equipment. A sealing effect of the components of the hydraulic system of bending machine, namely seals, sealing parts of the hydraulic system of bending machine is used to avoid the fluid or solid particles from the adjacent joints and leakage from external impurities such as dust and water into the machine internal parts of materials or parts, seals for hydraulic system of coil in the operation of medium leakage will form waste, pollution and environmental machinery, and even lead to malfunctioning machinery and equipment for personal accident.

卷板機液壓體系中的密封件作業的可靠性和運用壽命是衡量液壓體系好壞的一個重要指標。除空隙密封外，都是使用密封件，使相鄰兩個巧合外表間的空隙控制在需要密封的液體能經過的最小空隙以下，卷板機液壓體系中的密封件在觸摸式密封中，一般分為自封式壓緊型密封和自封式自緊型密封也稱唇形密)封兩種，可是，卷板機液壓體系中的各種密封其功能影響要素是不同的，就像三輥卷板機它的密封其實還，受到了溫度壓力以及存在的前言的不同影響。

The reliability and service life of the seal operation in the hydraulic system of the bending machine is an important index to measure the quality of the hydraulic system. In addition to seal gaps, are the use of seals, minimum spacing of two adjacent to make the gap between control in need of coincidence appearance of sealing liquid can pass below the seal in touch type seal machine in the hydraulic system, generally divided into self sealing pressure type sealing and self styled self tightening type sealing lip is also called letter two, but close), a variety of hydraulic system in the rolling machine sealing factors and its function is different, like the three roller bending machine it is sealed by pressure, temperature and different effects exist in the.