ISO 32312-11:2024

Overview

ISO 32312-11:2024 - Aircraft ground support equipment - Part 11: Container/Pallet dollies and loose load trailers - specifies safety, functional and some performance requirements for dolly and loose-load trailer design, commissioning, operation and maintenance at airports. It covers dollies using ball-mat, inverted cargo castors, or rollers and loose-load trailers for baggage, mail and cargo movement (ULDs and loose freight). The standard is a Type C machine-specific standard and complements general GSE requirements and risk-assessment principles.

Key topics and technical requirements

• Scope and applicability
  • Applies to airport dollies and loose-load trailers; excludes truck-type road trailers and equipment manufactured before publication.
  • Does not set requirements for noise/vibration (see EN 1915-4 / EN 1915-3).
• Hazard identification and risk assessment
  • Lists hazards (Clause 4 and Annex B) and requires manufacturers to perform specific risk assessments for unclear crushing/shearing/falling points and machine interfaces.
• Structure and platform
  • Structural stiffness must meet conveying surface load criteria (Annex C) and accommodate ULD dimensions/masses (Annex D).
  • Corners/projections minimized - chamfer radius ≥ 3 mm where applicable.
  • Platform rules: drainage for loose-load trailers, sloped surfaces to aid stability, minimum clearance of 13 mm below top of conveying surface for platform structure.
• Conveying and transfer units
  • Supports ball transfer units, inverted castors and rollers; guidance on lead-on rollers and placement (max 100 mm from platform edge) and impact-absorbing geometry (ramps ≤ 15°; 15 mm mounting offset).
• Towing, brakes and coupling
  • Designed for towing in trains (drawbar one end, towing coupling other), to avoid contact between adjacent dollies/ULDs.
  • Requirements include steering, manoeuvring, wheel assemblies and overrun/auto-reverse brake considerations.
• Human factors and markings
  • Controls must be operable with protective clothing/ gloves; clear marking, safety labeling and user instructions required (Clause 6).
• Verification and annexes
  • Verification procedures and informative annexes include typical designs, conveying surface dimensions, ULD data and coupling types.

Practical applications and users

• Who uses it:
  • GSE manufacturers and designers, airport operators, cargo handlers, airlines, regulatory authorities and procurement teams.
• Practical value:
  • Ensures interoperability with ULDs, improves safety during loading/unloading and towing operations, reduces injury and equipment damage risk, and supports consistent procurement and certification of dollies and loose-load trailers.

Related standards

• EN 1915‑1:2001 (GSE - General requirements)
• EN 1915‑2+A1 (Stability and strength)
• EN 1915‑3 / EN 1915‑4 (vibration and noise)
• ISO 12100 (machine safety / risk assessment)

Keywords: ISO 32312-11:2024, aircraft ground support equipment, container/pallet dolly, loose load trailer, GSE, ULD, safety requirements, towing trains, risk assessment.