Overview
ISO 9374-4:2024 - "Cranes - Information to be provided - Part 4: Jib cranes" specifies the information that purchasers must provide when enquiring or ordering a jib crane and the information manufacturers must supply when tendering for or delivering a jib crane. This second edition updates the original 1989 edition and provides a structured checklist and sample enquiry format to ensure correct specification, safe installation and proper selection of jib-crane equipment.
Key topics and technical requirements
The standard defines the minimum information exchange and documentation needed for jib crane procurement and supply. Main topics include:
- Scope and definitions: Uses terms from ISO 4306‑1 and ISO 4306‑4 to ensure consistent crane vocabulary.
- Purchaser information (Annex A / Tables A.1–A.6): recommended fields for enquiries/orders such as:
- required rated capacities (main and auxiliary hoists), radii and lift heights
- load‑lifting attachments (hook, grab, magnet, spreader)
- operating speeds (nominal, slow/creep, maximum) for hoisting, slewing, traverse and travel
- duty classification (per ISO 4301‑1 / ISO 4301‑4) or operational descriptions
- environmental and special service conditions (wind, temperature, humidity, seismic)
- controls, power supply details and limiting devices
- rail, foundation and clearance dimensions for specific crane types (portal, cantilever, derrick, high mast, fixed base)
- Manufacturer information:
- technical data consistent with ISO 9374‑1 and erection information when requested
- loads applied by the crane must be supplied in accordance with ISO 8686‑4
- necessary installation and operational dimensions (Figures 1–3 illustrate minimum dimension examples)
- Drawings and dimensions: Examples include span, boom length, tailswing radius, working radius ranges and hook heights to support installation and site planning.
Practical applications and users
ISO 9374‑4:2024 is intended for:
- Purchasers and specifiers preparing enquiries and tender documents for jib cranes
- Manufacturers and suppliers producing compliant offers, technical documents and installation instructions
- Engineering and procurement teams who coordinate foundations, railwork, power supply and site clearances
- Inspection, maintenance and safety personnel who rely on accurate duty and load information for safe use and testing
Using this standard reduces ambiguity in tenders, speeds procurement, ensures compatible site interfaces (foundations, rails, power, controls) and helps designers apply correct load and dimension data per ISO design principles.
Related standards (normative references)
- ISO 4306‑1 - Cranes - Vocabulary - Part 1: General
- ISO 4306‑4 - Cranes - Vocabulary - Part 4: Jib cranes
- ISO 9374‑1 - Cranes - Information to be provided - Part 1: General
- ISO 8686‑4 - Cranes - Design principles for loads and load combinations - Part 4: Jib cranes
Keywords: ISO 9374‑4:2024, jib crane specification, crane enquiry form, crane procurement, crane dimensions, crane duty classification, crane manufacturer information.
