ISO 11677-2:1994

Overview

ISO 11677-2:1994 is an international standard published by ISO that specifies the main dimensions and tolerances for flat steel healds with J-shaped open end loops used in the textile industry. Developed by ISO/TC 72 (Textile machinery and accessories) subcommittee SC 3, the standard sets dimensional rules to support manufacturing consistency, part interchangeability and reliable integration with textile machinery.

The published document contains supporting diagrams (Figure 1) and numeric reference tables (Table 1). Dimensions are given in millimetres, with certain values derived from inch-based originals where noted.

Key Topics

• Scope and applicability: Covers flat steel healds with open end loops formed in a J shape for general textile industry use.
• Main dimensions: Defines the geometric parameters that determine fit and function of the healds; referenced figures and tables illustrate dimension locations and relationships.
• Tolerances: Specifies allowable dimensional deviations to ensure consistent performance and interchangeability across manufacturers.
• Units and derivation: Primary dimensions are in millimetres; some values are derived from inch-based dimensions and are identified as such in the tables.
• Normative elements: Includes figure(s) and table(s) essential to implementing the standard.

Applications

This standard is practical for a range of stakeholders in textile production and supply chains:

• Manufacturers of healds and loom components who require standardized dimensional specifications.
• Machine builders and assembly technicians who need to ensure component compatibility and reliable installation.
• Quality engineers and inspection teams responsible for verifying dimensional conformity and tolerances.
• Procurement specialists sourcing replacement healds or parts across suppliers.

Benefits of implementing ISO 11677-2:1994 include:

• Improved interchangeability across suppliers and equipment.
• Reduced fit and assembly issues in loom maintenance and manufacturing.
• Clear inspection criteria for dimensional compliance.

Related Standards

• ISO 11677-1:1994 - the companion part addressing flat steel healds with a different end-loop form (referenced in the original document).
• Other ISO and national standards for textile machinery components and measurement/tolerance practices, as applicable.

For technical implementation, refer to the figures and tables in ISO 11677-2:1994 for the exact dimension callouts and tolerance values. The document provides the normative geometry and numeric data necessary for production, inspection and procurement of J-loop flat steel healds.