Spreader, container handling equipment comprising spreader, and method of lifting a transport container

A spreader for lifting a transport container, the spreader comprising

• a main frame having a first end and a second end, and extending along a longitudinal axis between said first end and said second end, the first end carrying a first container connector arrangement and the second end carrying a second container connector arrangement, each of said first and second container connector arrangements being configured to engage with a transport container;
• and
• a main frame suspension arrangement, wherein the main frame is translatably suspended in said main frame suspension arrangement to enable translation along said longitudinal axis, wherein the main frame is configured to be vertically supported by the main frame suspension arrangement along a support line extending between a first support end and a second support end, the main frame suspension arrangement carrying the weight of a suspension arrangement load comprising the main frame, the container connector arrangements, and any container attached to the container connector arrangements;
• and
• a detector arrangement configured to detect if a centre of mass of the suspension arrangement load is positioned at a longitudinal position along the support line which is beyond a limit position;
• wherein the detector arrangement is configured to detect if the centre of mass of the suspension arrangement load is positioned at a longitudinal position along the support line which is beyond a limit position based on a displacement of at least a portion of the main frame in relation to the main frame suspension arrangement.