Where a unit is designed to be craned — and in a shipbuilding environment many are — it is engineered as lifting equipment with rated lifting attachments, load tested and supplied with the certification LOLER requires. Units meant for fork or manual handling are specified and marked for that instead.
Designs are validated by load testing and, where the load case warrants it, finite element analysis for stress and stability. Weld certifications and inspection logs are recorded, and materials are traceable with serial number mapping so an individual unit can be identified years later.
Every unit carries a drawing number, working load limit and TARE label, is finished with corrosion-resistant treatments suited to a coastal or yard environment, and is UKCA marked where applicable. Manufacture is in Uttoxeter, Staffordshire.