ISO 5718-2-2023 PDF

Full title and description

Harvesting equipment — Requirements for cutting elements — Part 2: Blades used on large rotary mowers. This International Standard specifies material, testing and marking requirements for blades used as cutting elements on large rotary mowers for shredding crop residue, grass and small brush by impact.

Abstract

ISO 5718-2:2023 sets out the required material characteristics and mechanical tests (including a bend test and Charpy impact test) for blades used on large rotary mowers. It defines which mower types are excluded (rotary disc and drum mowers used for forage harvesting, arm-type large rotary mowers, pedestrian-controlled motor mowers and lawn mowers covered by the ISO 5395 series) and does not specify dimensional requirements.

General information

• Status: Published.
• Publication date: April 2023 (Edition 1).
• Publisher: International Organization for Standardization (ISO).
• ICS / categories: 65.060.50 (Agricultural machinery — Harvesting equipment).
• Edition / version: Edition 1, 2023 (ISO 5718-2:2023).
• Number of pages: 7 pages.

Scope

Applies to blades used as cutting elements on large rotary mowers (as defined in ISO 4254-13) intended for shredding crop residue, grass and small brush by impact. The standard specifies material characteristics and required tests and marking but excludes blades for rotary disc and drum mowers for forage harvesting, arm-type large rotary mowers, pedestrian-controlled motor mowers and lawn mowers covered by ISO 5395. Dimensional requirements are not covered.

Key topics and requirements

• Material characteristics for blades used on large rotary mowers (selection of suitable steel or alloy to resist centripetal forces and impacts).
• Mandatory mechanical tests including a bend (flexural) test and Charpy impact test to assess brittleness and toughness.
• Requirements for inspection, testing procedures and acceptance criteria relevant to blade safety and durability.
• Marking requirements for traceability of blades (manufacturer identification and relevant designation).
• Clear exclusions and references to related mower categories and other ISO series (ISO 4254-12/13, ISO 5395).

Typical use and users

Used by manufacturers of large rotary mowers and cutting elements, material and mechanical test laboratories, product conformity and certification bodies, procurement and quality engineers in agricultural equipment companies, and standards committees updating internal specifications to align with international requirements. The standard is also useful to OEM purchasers and aftermarket blade suppliers to ensure interchangeability, safety and performance.

Related standards

Key related documents include ISO 5718-1:2023 (requirements for blades used on rotary disc and rotary drum mowers), ISO 4254-13 (definitions and requirements for large rotary mowers), the ISO 5395 series (lawn mower safety standards) and earlier editions/amendments such as ISO 5718:2013 and ISO 5718:2013/Amd 1:2019 which ISO 5718-2:2023 revises/replaces.

Keywords

harvesting equipment; blades; cutting elements; large rotary mowers; material requirements; Charpy impact test; bend test; testing; marking; ISO 5718-2:2023.

FAQ

Q: What is this standard?

A: ISO 5718-2:2023 is an International Standard that specifies material, testing and marking requirements for blades used on large rotary mowers (Part 2 of the ISO 5718 series).

Q: What does it cover?

A: It covers material characteristics, mandatory mechanical tests (bend test and Charpy impact test), inspection and marking requirements for blades used to shred crop residue, grass and small brush on large rotary mowers. It does not set dimensional requirements and excludes certain mower types (see scope).

Q: Who typically uses it?

A: Blade and mower manufacturers, test laboratories, conformity assessors, procurement and quality personnel in agricultural equipment firms, and standards bodies developing related specifications.

Q: Is it current or superseded?

A: ISO 5718-2:2023 is the current published version (Edition 1, April 2023). It replaces and updates provisions from earlier ISO 5718 editions/amendments (including ISO 5718:2013 and its 2019 amendment).

Q: Is it part of a series?

A: Yes. ISO 5718 is a multipart series. ISO 5718-1:2023 covers blades for rotary disc and rotary drum mowers, while ISO 5718-2:2023 covers blades for large rotary mowers (this part). The series replaces earlier consolidated editions of ISO 5718.

Q: What are the key keywords?

A: Blades, cutting elements, large rotary mowers, material requirements, bend test, Charpy impact test, testing, marking, harvesting equipment, ISO 5718-2:2023.