Overview
ISO 8489-2:1995 specifies the main dimensions, tolerances and designation for cones used in cross winding with a half-angle of 3°30'. The part defines the dimensional framework, inspection methods and manufacturer-specified characteristics required to ensure reliable winding performance and interchangeability in textile machinery.
The standard is intended for manufacturers, quality engineers and textile equipment buyers who require consistent cone geometry and documented control procedures for production and inspection.
Key Topics
- Scope and purpose: establishes nominal dimensions and permissible tolerances for cones with a 3°30' half-angle, and gives directives on cone characteristics and inspection.
- Types: cones are classified by rim profile into three types (Type A: straight rim, Type B: rolled rim, Type C: tapered rim) to suit different winding equipment and yarn reserve features.
- Dimensions and tolerances: nominal diameters, lengths and tolerance bands are provided in tables and figures; these control the small and large diameters and overall cone length.
- Calibration and gauges: conical gauges are used to verify internal cone dimensions; the document explains positioning on the gauge and limits for acceptance.
- Length control: straight measuring instruments (for example calipers) are recommended for verifying cone length tolerances.
- Manufacturer specifications: producers should declare material (paper or plastic), surface treatment, wall thickness, tolerance on runout, and optional features such as notches, grooves and perforations.
- Designation rules: a standardized designation format is specified (example: Cone ISO 8489-2 - B 71.5 x 230), showing type, large internal diameter and length.
Applications
- Ensures interchangeability of cones across winding machines in spinning and textile preparation operations.
- Supports quality control and acceptance testing during cone production and procurement.
- Facilitates consistent winding behavior for cross winding processes, improving yarn package uniformity and downstream processing reliability.
- Useful for equipment manufacturers, textile mills and cone suppliers to align product specifications and inspection criteria.
Related Standards
- ISO 8489-1:1995 - Recommended principal dimensions for cones for cross winding.
- ISO 286-1:1988 - ISO system of limits and fits; referenced for tolerance principles applied to cone diameters.
By following ISO 8489-2:1995, stakeholders obtain a clear, repeatable specification for cone geometry and inspection that reduces incompatibility risk and supports efficient cross winding operations.