ISO 4306-4:2020

Overview

ISO 4306-4:2020 is part of the ISO 4306 series that establishes a common vocabulary for the crane sector. This part focuses specifically on jib cranes, defining terms and types used by manufacturers, designers, operators and regulators. The document was prepared by ISO/TC 96, Subcommittee SC 8 (Jib cranes) and includes an informative Annex A that illustrates different jib crane types.

The standard clarifies scope and exclusions: mobile cranes, tower cranes, railway cranes and offshore cranes are excluded. The emphasis is on consistent terminology to support clear communication across technical documentation, safety procedures, procurement and training.

Key Topics

• Defined terms and definitions for jib-type cranes, including components and configurations.
• Types of jib cranes described in the text and illustrated in Annex A, such as portal slewing cranes, single-boom and double-link boom portal cranes, semi-portal cranes, high-mast cranes, fixed-base jib cranes, derrick cranes (A-frame, shear-leg, gin pole, chicago boom, movable), cantilever cranes, wall-fixed and wall-travelling cranes, container-handling and multipurpose portal cranes, and specialised types (e.g., kangaroo portal slewing cranes).
• Illustrative figures: the annex contains diagrams and keyed figures showing typical components (boom, rotating platform, slewing mechanism, hoisting mechanism, portal, rotary column, etc.) to aid recognition and application of terms.
• Terminology resources: the document references ISO/IEC guidance and ISO’s online terminological platforms for broader standardization context.

Applications

ISO 4306-4:2020 provides practical value across disciplines and industries where jib cranes are specified, installed or operated:

• Design & engineering: ensures consistent naming of components and crane types in specifications and drawings.
• Safety & operations: supports clear safety documentation, operator training, and risk assessments by standardizing terms used in procedures and manuals.
• Procurement & contract management: reduces ambiguity in tender documents, technical requirements and acceptance criteria.
• Regulation & compliance: helps regulatory bodies and inspectors apply uniform definitions when referencing jib crane configurations.

Benefits include improved communication between stakeholders, reduced misinterpretation in technical documentation, and support for training, maintenance and inspection regimes.

Related Standards

• ISO 4306-1: Part 1 of the series - General vocabulary for cranes (listed in the bibliography of ISO 4306-4).
• Other parts of the ISO 4306 series: consult the ISO catalogue for the complete list.

For detailed diagrams, authoritative term definitions and official wording, refer to the full ISO 4306-4:2020 publication and your national standards body.