Overview
ISO 11900-1:2007 is an international standard published by the International Organization for Standardization (ISO) that specifies the dimensions, tolerances, material guidelines, and hardness requirements for ball-lock punch retainers. This part of ISO 11900 focuses on Types A and B, which are rectangular and square-shaped retainers designed for light-duty pressing tools. These components are essential in the retention and proper functioning of ball-lock punches used when punching holes in steel sheets, in accordance with ISO 10071-1.
By standardizing the dimensions and quality requirements for ball-lock punch retainers and their backing plates, ISO 11900-1:2007 ensures interchangeability, reliability, and performance in metalworking and pressing operations.
Key Topics
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Types Covered:
- Type A: Rectangular ball-lock punch retainers
- Type B: Square ball-lock punch retainers
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Scope and Dimensions:
The standard defines precise dimensions and tolerances in millimeters for Types A and B and includes detailed tables and illustrations describing overall size, hole diameters, countersinks, and surface roughness values.
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Material and Hardness:
- Ball-lock punch retainers: Recommended hardness between 43 HRC and 56 HRC
- Backing plates: Recommended hardness between 50 HRC and 60 HRC
These hardness levels support durability and wear resistance required for light-duty punching applications.
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Designation Guidelines:
Ball-lock punch retainers are designated with a clear nomenclature pattern:
Ball-lock retainer [ISO 11900-1](/search?q=ISO%2011900-1)-[Type]-[Diameter in mm]
Example: A type A ball-lock punch retainer with a 6 mm diameter is designated as
Ball-lock retainer ISO 11900-1-A-6
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Compatibility:
The retainers work in conjunction with ball-lock punches per ISO 10071-1 and comply with related fastener standards such as ISO 273 for clearance holes and ISO 4762 for hexagon socket head cap screws.
Applications
ISO 11900-1:2007 applies primarily to industries using pressing tools for metal sheet fabrication, particularly where light-duty punching of steel sheets is required. Key applications include:
- Tool and die manufacturing: Ensuring compatibility and precision for ball-lock punch retainers integrated into punching dies.
- Sheet metal processing: Optimal retention of punches for consistent, high-quality hole punching without tool slippage.
- Automotive and aerospace components: Lightweight sheet metal formations requiring precise hole punches for assembly.
- General manufacturing: Assembly lines using fine pressing tools for light-duty steel sheet operations.
This standard supports quality assurance, interchangeability of parts, and improved tool longevity by defining clear manufacturing and inspection criteria.
Related Standards
- ISO 10071-1: Tools for pressing - Ball-lock punches - Part 1: Ball-lock punches for light duty
- ISO 273: Fasteners - Clearance holes for bolts and screws
- ISO 4762: Hexagon socket head cap screws
- ISO 8735: Parallel pins with internal thread, hardened steel and martensitic stainless steel
- ISO 1302: Geometrical Product Specifications - Indication of surface texture in technical product documentation
These standards complement ISO 11900-1 by providing specifications for associated components, fasteners, and technical documentation practices ensuring seamless integration in tooling systems.
Keywords: ISO 11900-1, ball-lock punch retainer, pressing tools standard, light-duty punch retainers, ISO ball-lock punch, punching tools dimensions, ball-lock punch backing plates, metal pressing tools, sheet metal punching standard, standardized punch retainers