Linear guide rail The precision levels also differ. For example, the machine tool industry has very high precision requirements for machined parts; therefore, it typically uses precision linear guides of H-class or higher. In contrast, the automation industry generally only needs components that serve a transmission function and does not have stringent precision requirements—thus, N-class guides are more commonly used.

　　When selecting linear guide rails, the first step is to calculate based on the weight and dimensions of the worktable, in order to determine an approximate model and length for the guide rails to be used. With the approximate model and length established, the next step is to confirm the mounting dimensions of the slider. Commonly used sliders come in two types: flange-type and square-type. Each of these types is further divided into standard and extended versions. If the load is relatively large, it is recommended to choose an extended slider.

　　The linear guide rail is one of the core components of the equipment, serving primarily as a guiding and supporting element. To ensure high machining accuracy of the machine, the guide rail and linear motion components must exhibit high guiding precision and excellent motion stability. During operation, the equipment generates large amounts of corrosive dust and fumes as the workpieces are processed. These fumes and dust tend to accumulate over time on the surfaces of the guide rails and linear shafts, significantly impacting the equipment's machining accuracy and potentially creating corrosion spots on the surface of the guide rail’s linear shaft, thereby shortening the equipment’s service life.

　　To ensure the machine operates smoothly and reliably and to guarantee the quality of processed products, it is essential to perform regular daily maintenance and upkeep on the guide rails and linear axes. Please prepare a dry cotton cloth and lubricating oil for cleaning the guide rails. First, move the laser head to the right (or left) to locate the linear guide rail. Use a dry cotton cloth to wipe the rail until it becomes shiny and free of dust. Apply a small amount of lubricant, then gently push the laser head back and forth several times to evenly distribute the lubricant.

　　Move the crossbeam inward, open the end covers on both sides of the machine, locate the guide rails, and thoroughly wipe clean the areas where the guide rails on both sides come into contact. Use a dry cotton cloth to clean the rollers. Then, move the crossbeam to remove any remaining debris and ensure that the linear guide rails are properly cleaned. Before leaving the factory, the guide rails should be wiped with rust-preventive oil; however, after a period of use, they may still develop severe rusting.

　　Therefore, after using linear guide rails, it is necessary to reapply rust-preventive oil to their surfaces. They should be stored in a room maintained at normal temperature and must not be stored together with corrosive substances. Additionally, unused linear guide rails should not be temporarily placed directly on the warehouse floor, as the floor can accelerate the evaporation of the rust-preventive oil. Thus, you need to pay extra attention when using them.