Selecting Linear Modules for CNC Machine Tools and Robots

What Machine Tools and Robots Need from Linear Modules

In CNC machine tools and robotics, the linear module is a precision transmission component with a decisive role - it directly affects motion accuracy, running efficiency and stability.

• Higher motion accuracy: a linear module delivers accurate linear motion to meet high-precision requirements.

• Higher running efficiency: high rigidity and low noise improve machine throughput.

• Greater stability: stability is essential to reliable long-term operation.

Selection Factors

Choosing a linear module means weighing the following:

• Load - match the load capacity to the machine tool or robot working load

• Stroke - match travel to the required working stroke

• Accuracy - select an accuracy class that meets the machine requirement

• Guide type - choose a guide type that suits the mounting space and working environment, such as HIWIN or THK guides

Applications

Linear modules are widely used in CNC machine tools and robots, including:

• CNC machine tools: machining centres, CNC lathes, CNC grinders

• Industrial robots: manipulators, assembly robots, welding robots

Maintenance

To keep a linear module running stably over the long term:

• Replenish grease at intervals to keep the guide lubricated

• Check preload setting and dust protection so the machine runs normally

• Service or replace promptly when abnormal noise appears or clearance increases

Related: All News Technical Guides All Models Cases Selector Tool