ISO 15236-2:2017

Overview

ISO 15236-2:2017 is an international standard that specifies preferred types of steel cord conveyor belts used as reinforcement in the longitudinal direction. These conveyor belts are designed for heavy-duty material handling and are constructed according to the general requirements outlined in ISO 15236-1. The standard focuses on preferred belt types, ensuring compatibility and interchangeability among belts manufactured by different suppliers. This harmonization facilitates reliable splicing and optimal performance in demanding conveyor systems.

Key Topics

• Steel Cord Conveyor Belts: Belts reinforced with longitudinal steel cords for enhanced strength and durability.
• Preferred Belt Types: Defines specific belt type categories (A, B, C) and subtypes with details on construction, cord diameter, cord pitch, and breaking strength.
• Design Parameters: Includes specifications for cord diameter, spacing (pitch), carcass thickness, and cover thickness to support varied applications.
• Belt Joints: Describes suitable vulcanized joint types-such as interlaced stepped, plain stepped, and finger joints-compatible with belt types.
• Construction Details:
  • Type A belts: Steel cords coated by hot dip zinc, tailored for interlaced stepped joints.
  • Type B belts: Incorporate transverse reinforcement with either high elongation or standard elongation warp cords, supporting finger and stepped joints.
  • Type C belts: Fabric-like tension members with brass or zinc coated steel cords, adaptable to finger and plain stepped joints.
• Mechanical Requirements: Break strengths are calculated to meet minimum safety margins and ensure consistent performance.
• Compatibility & Standardization: Emphasizes standard cord dimensions and pitch to enable effective jointing and dynamic capability in conveyor operations.

Applications

Steel cord conveyor belts specified in ISO 15236-2:2017 are widely used in industries requiring robust, high-capacity conveying solutions. Typical applications include:

• Mining and Quarrying: Transporting heavy materials like ores, coal, and aggregates over long distances.
• Cement and Steel Plants: Handling raw materials and finished products with high tensile strength and durability demands.
• Bulk Material Handling: Ports, logistics, and container terminals adopting conveyor belts for continuous material flow.
• Power Generation: Coal and biomass conveyors requiring wear-resistant and reliable belting.
• Industrial Manufacturing: Conveying systems for diverse manufacturing processes needing durable reinforcement.

The standard ensures users select belt types with optimal tensile strength, carcass flexibility, and jointing compatibility, reducing downtime and maintenance costs.

Related Standards

• ISO 15236-1:2016 - Steel cord conveyor belts - Part 1: Design, dimensions, and mechanical requirements for conveyor belts for general use
  Provides foundational design criteria and mechanical performance benchmarks referenced by ISO 15236-2.

• ISO 15236-4 - Steel cord conveyor belts - Part 4: Vulcanized belt joints
  Defines jointing methods critical for selecting compatible belt types from ISO 15236-2.

• ISO/IEC Directives, Part 1 & 2
  Governs the development and maintenance processes of ISO standards, ensuring consistency and quality in technical documentation.

Summary

ISO 15236-2:2017 standardizes preferred steel cord conveyor belt types, focusing on belt construction and joint compatibility to meet industrial demands for durability and performance. By specifying cord dimensions, pitch, and tensile strength requirements, it supports reliable conveyor belt manufacturing, installation, and maintenance. Industries utilizing heavy material handling benefit from using belts that conform to these internationally agreed parameters, achieving enhanced operational efficiency and reduced equipment failures. This standard is an essential reference for engineers, manufacturers, and end-users involved in conveyor belt selection and system design.