ISO 4306-2:2012

Overview

ISO 4306-2:2012 - Cranes - Vocabulary - Part 2: Mobile cranes - is the fourth-edition international standard that establishes a harmonized vocabulary for self-powered mobile cranes. Published by ISO in 2012, this multilingual (English/French/Russian) document defines the commonly used terms and definitions for the basic types, mounting arrangements and structural elements of mobile cranes. It excludes excavators and other construction machines covered by ISO 6165.

Key topics

The standard focuses on clear, consistent crane terminology rather than prescriptive technical specifications. Important topics covered include:

• General terms: definitions such as mobile crane, crane configuration, crane set‑up, rated capacity and maximum rated capacity.
• Mounting types: classification and names for common travel chassis, e.g. crawler‑mounted, wheel‑mounted, and specially mounted arrangements.
• Structures: terms for crane superstructures and load‑handling components, for example slewing upper structure and slewing boom.
• Boom (attachment) types and special configurations: vocabulary describing boom arrangements, jibs, tip extensions and non‑standard configurations.
• Edition changes: the 2012 revision added new terms, revised the loader crane definition and replaced the term jib with boom in Clauses 3 and 4 for clarity.

Practical applications

ISO 4306-2 is a foundational reference for anyone needing consistent crane terminology:

• Manufacturers & OEMs: to align product manuals, technical drawings and specification sheets with international terminology.
• Design & maintenance engineers: to avoid ambiguity when specifying components (booms, superstructures, chassis types) and when documenting set‑up or configuration limits.
• Procurement & fleet managers: to compare equipment and create unambiguous purchase specifications.
• Safety officers & inspectors: to standardize language in risk assessments, operation procedures and incident reports.
• Technical writers & translators: to produce multilingual documentation consistent with ISO vocabulary.
• Standards committees & regulators: to harmonize terms across related standards and regulations.

Related standards

• ISO 4306-1 - Cranes: Vocabulary - Part 1: General
• ISO 4306-3 - Part 3: Tower cranes
• ISO 4306-5 - Part 5: Bridge and gantry cranes
• ISO 6165 - Classification for excavators and related construction machines (not covered by Part 2)

Using ISO 4306-2:2012 ensures clarity when specifying mobile cranes, writing technical documentation, and aligning cross‑border projects with internationally accepted crane terminology. Keywords: ISO 4306-2, mobile cranes, crane vocabulary, crane terminology, slewing boom, crawler-mounted, wheel-mounted, rated capacity.