ISO 363-2:2006

Overview

ISO 363-2:2006 specifies the main dimensions and tolerances for flat steel healds with closed end loops (O‑shaped end loops) manufactured from hardened strip steel for the textile industry. This part of ISO 363 covers the dimensional series and allowable variations (in millimetres), including standard cross‑sections and loop‑to‑loop distances, and presents the information graphically (figure) and in tabular form for simplex (single eyelet row) and duplex (double eyelet row) healds.

Key Topics

• Scope and dimensional requirements: Defines the principal dimensions and tolerances of flat steel healds made of hardened strip steel for use on weaving machines.
• Heald types: Distinguishes simplex (single eyelet) and duplex (double eyelet) configurations and provides separate dimensional tables for each.
• Cross‑section and material: Typical cross‑section examples appear in the tables (e.g., 5.5 × 0.3 mm) and the standard is specific to healds manufactured from hardened strip steel.
• Loop geometry: Specifies the O‑shaped closed end loops (closed end loops) geometry and the distances between end loops (examples of standard lengths include 260, 280, 302, 330 mm).
• Tolerance and interchangeability: Establishes tolerances to ensure compatibility between healds and textile machinery, facilitating interchangeability and consistent performance.

Applications

ISO 363-2:2006 is used where precise, repeatable heald dimensions are critical:

• Specification and procurement of flat steel healds for shuttle and modern weaving machines.
• Manufacturing and quality control for heald producers using hardened strip steel.
• Design and maintenance of textile machinery where component interchangeability and adherence to dimensional tolerance are required.
• Inventory standardization for textile mills, service workshops, and spare‑parts suppliers to reduce machine downtime and ensure reliable weaving performance.

Who Should Use This Standard

• Heald and textile component manufacturers
• Weaving machine OEMs and design engineers
• Purchasing and procurement teams in textile mills
• Quality control and inspection personnel
• Maintenance technicians and spare‑parts managers

Related Standards

• ISO 363-1 - Part 1: Dimensions of healds manufactured of rolled steel wire (companion document for wire healds)
• Other ISO and industry standards addressing textile machinery dimensions and component interchangeability

ISO 363-2:2006 provides a concise, practical reference for heald dimensions, tolerances, and O‑shaped end loop specifications, helping manufacturers and textile professionals ensure compatibility, quality, and reliable loom operation.