People who often use THK guideway in automation industry know that when THK linear guideway uses linear motion system, dust prevention is the most important factor. Why?

因为粉尘及其他异物进入直线运动系统，它将导致异常磨损，并缩短使用寿命。这也会造成不必要的损失！所以，预计可能会有粉尘及其他异物进入时，有必要选择满足使用环境条件的密封装置进行防尘保护。下面小编告诉大家THK直线导轨的防尘技巧。

Because dust and other foreign matters enter the linear motion system, it will cause abnormal wear and shorten the service life. This will also cause unnecessary losses! Therefore, it is necessary to select the sealing device to protect dust when dust and other foreign matters are expected to enter. The following small series tell you THK linear guide dust skills.

1、专用弹性护罩

1. Special elastic shield

关于THK-LM翻滚导轨，常常备有规范的专用弹性护罩。另外THK也制作滚珠螺杆和滚珠花键等其他直线运动体系的专用弹性护罩。直线运动体系有必要挑选可以满意运用环境恳求的原料。为了可以在像易蚀性等这些苛求的环境中运用,某些直线运动体系可以运用马氏体不锈钢。（马氏体不锈钢可以运用于下列类型的 LM翻滚导轨∶SSR、SHW、SRS、HSR、SR、HRW、RSR、RSR-Z、RSH、RSH-Z和HR型。）直线运动体系的LM轨迹和轴的外表可以因防锈或审美之意图进行外表处置。THK供给了THK-AP处置,这是对准直线运动体系的外表处置办法。大致上有3种类型的THK-AP处置办法∶ AP-HC、AP-C和AP-CF。

As for thk-lm rolling guide, there are usually special elastic shields. In addition, THK also makes special elastic shield for ball screw, ball spline and other linear motion systems. It is necessary for linear motion system to select raw materials which can satisfy the application environment. In order to be used in demanding environments such as erodibility, some linear motion systems can use martensitic stainless steel. (martensitic stainless steel can be used in the following types of LM rollover guides: SSR, SHW, SRS, HSR, Sr, HRW, RSR, rsr-z, RSH, rsh-z and HR.) The LM track of linear motion system and the appearance of axis can be treated for anti rust or aesthetic purpose. THK provides thk-ap treatment, which is the best way to deal with the appearance of linear motion system. Generally speaking, there are three types of thk-ap disposal methods: ap-hc, ap-c and ap-cf.

2、专用密封挡板

2. Special sealing baffle

效果防尘密封用，在各直线导轨体系中备有下图所示的高耐磨损性的特别合成橡胶制作的密封挡板（例如多层触摸刮板LACS）和情节环等。别的，在运用环境恶劣的场所，有些类型备用专用的弹性护罩和专用防尘盖。

In each linear guide rail system, there are sealing baffles (such as multi-layer touch scraper lacs) and rings made of special synthetic rubber with high wear resistance as shown in the figure below. In addition, some types of spare special elastic shield and special dust cover are used in places with bad operating environment.

随着THK导轨的使用要求越来越严格苛刻，如今在其保养中防尘已经成为重中之重，它比润滑保养更频繁，只要导轨被使用，就要随时随地进行防尘保护。

Nowadays, the use of THK is more and more strict than the maintenance of dust-proof guide rail.