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UNITED GRINDING
Reference E1: Standard for real precision
The E1 value is the key machine-specific characteristic value for evaluating a measuring machine. It defines the one-dimensional axially parallel length deviation in coordinate measurement systems.
The lower the E1 value, the smaller the range of the measurement deviation and the greater the accuracy to the actual value of the measurement result.
In the HELICHECK PRO/PRO LONG and HELICHECK PLUS/PLUS LONG, the value is E1 = (1.4 + L/300) μm resp. E1 = (1,2 + L/300) μm optionally and enables reliable quality assurance, even with production tolerances of ≤ 10 μm, e.g. ± 5 μm.
In the HELICHECK PRO and HELICHECK PLUS, the repeating accuracy of ≤ 1 μm is also impressively high. Note: the repeating accuracy alone does not provide a reliable statement on the performance of a machine, but it is an important prerequisite!