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How do you choose between linear rails and hard rails?
We often hear that CNC machining centers are divided into hard and linear rails. When customers choose a machining center, they ask: Which is better? What is the difference between them? What is a hard rail? What is a linear rail? Hard rails refer to a cast part where the guide rail and machine body are integrated, and the guide rail is machined based on the casting. The shape of the guide rail is cast on the machine body and processed into a guide rail through quenching and grinding. There are also cases where the body and guide rail are not integrated, such as the embedded steel guide rail, which is nailed to the body after processing. Linear rails usually refer to rolling guides, commonly used in linear modules in the machine tool industry today. We often refer to this type of component as "linear guides". The linear guide rail is divided into two parts: the slide rail and the slide blocks. The slide blocks have internally circulating balls or rollers, and the length of the slide rail can be customized. It is a modular component that is a standardized and serialized individual product produced by specialized manufacturers. It can be installed on machine tools and disassembled and replaced when worn out. Many machine tools in the precision machining field use high-precision line rails as machine tool guides, greatly ensuring the machining accuracy of the machine tools. Is it good to use hard rails for machining centers? Are linear rails better? Actually there is no such thing as good or bad between hard and linear rails, only whether they are suitable or not because their emphasis is different. Let's take a look at their respective advantages and disadvantages.
