Linear module is essential equipment for the automation industry, so the accuracy of the linear module is a very important indicator, as far as possible to minimize the accuracy error, in order to allow play out the stability of the equipment where the linear module. So, how is the linear module accuracy level divided? It can be graded in detail according to the precision value.
Ordinary level: the positioning accuracy is usually around 5μm. Take 300mm long guide rail as an example, the walking parallelism error is usually within 0.015mm, suitable for ordinary machinery and equipment that do not require high accuracy, such as simple automated production lines, ordinary packaging machinery, etc..
Advanced: Positioning accuracy of up to 3μm, 300mm long guideway walking parallelism error can be controlled within 0.01mm. Suitable for occasions with medium precision requirements, such as precision machine tools, some non-critical parts of the movement, conventional printing equipment, laser marking machine.
Precision grade: Positioning accuracy is 2μm, parallelism tolerance of 1000mm long guideway travel is limited to within 0.005mm, and parallelism error of 300mm short guideway travel is also within 0.005mm. Widely used in high-precision machining centers, key axes of CNC machine tools, and all kinds of measuring instruments.
Ultra-precision: Positioning accuracy up to 1.5μm, parallelism error is compressed to within 0.003mm. Commonly used in semiconductor manufacturing equipment, high-end scientific research instruments and other occasions requiring high precision.
Ultra-high precision grade: Positioning accuracy up to 1μm, travel parallelism error can be controlled within 0.002mm. Mainly used in ultra-precision machining processes, equipment that performs high-precision measurement tasks in extremely harsh environments, and so on.
The accuracy level of linear modules needs to be selected according to specific application scenarios and accuracy requirements to ensure the stability and reliability of the equipment. Different manufacturers may have different accuracy level classification standards and naming methods, in the actual application of the specific manufacturers need to refer to the technical information provided by the manufacturer.
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