BS ISO 8636-1:2026 PDF

Machine tools. Test conditions for bridge-type milling machines - Testing of the accuracy of fixed bridge (portal-type) machines

First page of standard BS ISO 8636-1:2026

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Title (English):

BS ISO 8636-1:2026

Machine tools. Test conditions for bridge-type milling machines - Testing of the accuracy of fixed bridge (portal-type) machines

Document status:: Active
Format:: Electronic (PDF)
Number of pages:: 54
Publication date:: May 31, 2026
ICS:: 25.080.20
SKU:: BS ISO 8636-1:2026

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Abstract

1 Scope This document specifies, with reference to ISO 230‑1 and ISO 230‑2 , geometric tests and tests for checking the accuracy and repeatability of positioning of numerically controlled axes for general purpose, normal accuracy, bridge-type milling machines with a fixed bridge (portal type). This document also specifies the applicable tolerances corresponding to the above-mentioned tests. This document is applicable to machines with moving tables and fixed double columns. It does not include single-column (open sided) machines and those with fixed tables and moving columns. This document deals only with the verification of the accuracy of the machine. It does not apply to the testing of the machine operation (vibration, abnormal noise, stick-slip motion of components, etc.) nor to machine characteristics (such as speeds, feeds, etc.), which are generally checked before testing the accuracy. This document provides the terminology used for the principal components of the machine and the designation of the axes with reference to ISO 841 .

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BS ISO 8636-1:2026 PDF

Abstract

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