ISO 3914-2:1994

Overview

ISO 3914-2:1994 - Textile machinery and accessories - Cylindrical tubes - Part 2 specifies the dimensions, tolerances and designation of cylindrical tubes used for open-end (rotor) spinning machines. This second edition cancels and replaces the 1981 edition and provides manufacturers, machine builders and quality departments with uniform rules for tube geometry and identification. The standard also gives directives for tube characteristics and methods to control the inner diameter and length of tubes.

Key topics and requirements

• Scope and purpose: Defines main dimensions and tolerances for cylindrical tubes specifically for open-end spinning applications.
• Designation format: The required designation includes the words “Cylindrical tube”, a reference to ISO 3914-2, the inner diameter (d) in millimetres and the length (l) in millimetres (e.g., Cylindrical tube ISO 3914-2 - 54 x 170 as shown in the standard).
• Manufacturer-specified characteristics: Material (paper or plastic), nature of yarn to be wound, tube wall thickness (related to yarn type), surface treatment (impregnated or non-impregnated) and presence of a groove for transfer tail.
• Control and inspection methods:
  • Inner diameter verification by GO/NOT GO gauge.
  • Length verification by a suitable length gauge (for example, a slide-gauge).
• Reference to dimensional data: The standard points to main recommended dimensions (see ISO 3914-1) and provides tables/figures for inner diameters and lengths. Notes clarify that tolerances may be adapted by agreement between parties for specific applications.

Applications and who should use it

• Tube manufacturers and converters producing paper or plastic cylindrical tubes for open-end spinning machines.
• Textile machinery manufacturers and OEMs specifying tube interfaces and package geometry.
• Quality control and inspection teams using GO/NOT GO and length gauges to ensure compliance with tolerances.
• Procurement and specification authors preparing purchase orders or technical data sheets for spinning consumables.
• Textile mills (rotor/open-end spinning) ensuring compatibility between consumables and machine requirements.

Using ISO 3914-2 improves interchangeability of tubes, reduces machine downtime caused by non-conforming packages and supports consistent package handling across suppliers and equipment.

Related standards

• ISO 3914-1: Recommended main dimensions (referenced normative standard).
• Other parts in the ISO 3914 series addressing tubes for tape yarns, textured yarns, continuous filament yarns, cross-wound packages, and perforated tubes for cheese dyeing (Parts 3–7).

Keywords: ISO 3914-2:1994, cylindrical tubes, open-end spinning machines, dimensions, tolerances, inner diameter, tube length, GO/NOT GO gauge, textile machinery.