ISO 11903:2008

Tools for pressing - Guide pillar mountings

ISO 11903:2008 specifies the dimensions and their tolerances, in millimetres, of guide pillar mountings intended for mounting with or without guide bush. It also specifies material, and the designation of guide pillar mountings that are in accordance with its specifications.

Outillage de presse — Embases de guidage

L'ISO 11903:2008 spécifie les dimensions et les tolérances, en millimètres, des embases de guidage, destinées à être montées avec ou sans bagues de guidage. Elle spécifie également les matériaux et la désignation des embases de guidage conformes à ses spécifications.

General Information

• Status: Published
• Publication Date: 29-Oct-2008
• ICS: 25.120.10 - Forging equipment. Presses. Shears
• Technical Committee: ISO/TC 29/SC 8 - Tools for pressing and moulding
• Drafting Committee: ISO/TC 29/SC 8/WG 2 - Tools for pressing
• Current Stage: 9093 - International Standard confirmed
• Start Date: 02-Aug-2023
• Completion Date: 13-Dec-2025

Relations

• Revises: ISO 11903:1996 - Tools for pressing - Guide pillar mountings
• Effective Date: 15-Apr-2008

Overview

ISO 11903:2008 is an international standard published by the International Organization for Standardization (ISO) that specifies the dimensions, tolerances, materials, and designations for guide pillar mountings used in pressing tools. This standard ensures consistency and interchangeability in the manufacturing of guide pillar mountings, which are essential components in die sets and pressing equipment used across various industries such as automotive, metal forming, and tooling.

Guide pillar mountings provide precise guidance and alignment for the movement of tooling parts, improving the accuracy and longevity of the press operation. ISO 11903:2008 covers both guide pillar mountings with and without guide bushes, offering dimensions in millimeters alongside corresponding surface roughness values.

Key Topics

• Dimensions and tolerances: The standard provides detailed specifications for guide pillar mounting dimensions including diameter, height, and other geometric parameters to ensure compatibility and correct fitting.
• Mounting with or without bushes: Guidelines are provided for both configurations, allowing manufacturers flexibility while maintaining standardization.
• Material requirements: Guide pillar mountings must be made from grey cast iron classified under ISO 185/JL/250, or an equivalent material with similar mechanical properties, guaranteeing durability and performance under pressing loads.
• Designation system: The standard defines a clear designation format for guide pillar mountings that includes reference to ISO 11903, guide pillar diameter, and bush identification if applicable, simplifying identification and ordering.
• Surface finish: Surface roughness is detailed in micrometres to ensure the correct surface integrity for optimal guidance and wear resistance.

Applications

ISO 11903:2008 applies primarily to manufacturers and users of:

• Press tools and moulding equipment: Used in the assembly of dies for metal stamping, plastic moulding, and other pressing operations requiring accurate alignment.
• Die sets: Guide pillar mountings ensure proper alignment of upper and lower die components, preventing misalignment during repeated press cycles.
• Automotive and aerospace manufacturing: Critical for high-precision tooling where consistent press guidance is essential to achieving quality parts.
• Tool and die shops: Provides a standardized benchmark to streamline tooling production and component replacement.

By adhering to ISO 11903:2008, tool designers and engineers ensure interchangeability, reliability, and quality control in guide pillar mountings, which in turn reduces downtime and maintenance costs.

Related Standards

• ISO 185 - Grey cast irons - Classification: Defines material grades relevant for the guide pillar mountings specified in ISO 11903.
• ISO 1302:2002 - Geometrical Product Specifications (GPS) - Indication of surface texture in technical product documentation: Used for specifying the surface roughness details referenced in ISO 11903.
• ISO/IEC Directives, Part 2 - Rules for drafting International Standards: Governs the preparation of ISO 11903 and similar standards to ensure uniformity and clarity.

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By incorporating ISO 11903:2008 into design and manufacturing processes, organizations benefit from standardized press tool components that enhance operational efficiency and product consistency. This standard is an essential reference for professionals involved in the production, specification, and quality assurance of guide pillar mountings in pressing tools worldwide.

Standards Content (Sample)

INTERNATIONAL ISO
STANDARD 11903
Second edition
2008-11-01
Tools for pressing — Guide pillar
mountings
Outillage de presse — Embases de guidage

Reference number
©
ISO 2008
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Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies
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International Standard requires approval by at least 75 % of the member bodies casting a vote.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. ISO shall not be held responsible for identifying any or all such patent rights.
ISO 11903 was prepared by Technical Committee ISO/TC 29, Small tools, Subcommittee SC 8, Tools for
pressing and moulding.
This second edition cancels and replaces the first edition (ISO 11903:1996), of which it constitutes a minor
1)
revision. In particular, the indication of surface textures has been updated in
...

NORME ISO
INTERNATIONALE 11903
Deuxième édition
2008-11-01
Outillage de presse — Embases de
guidage
Tools for pressing — Guide pillar mountings

Numéro de référence
©
ISO 2008
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Publié en Suisse
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Avant-propos
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L'attention est appelée sur le fait que certains des éléments du présent document peuvent faire l'objet de
droits de propriété intellectuelle ou de droits analogues. L'ISO ne saurait être tenue pour responsable de ne
pas avoir identifié de tels droits de propriété et averti de leur existence.
L'ISO 11903 a été élaborée par le comité technique ISO/TC 29, Petit outillage, sous-comité SC 8, Outillage de
presse et de moulage.
Cette deuxième édition annule et remplace la première é
...