Design of a crane cabin or control cabin is much similar to a bridge design process. Usually the cabins are designed to allow optimal visibility. The optimal human viewing angle is approximately 15 degrees below the horizontal. An area of 30 degrees below and above this viewing line is suitable for regular viewing tasks.
If the operators main work area appears to be far below of above this range, an alternative position for the cabin should be considered.
Some other design considerations are:
- Standard ‘of-the-shelve’ control cabins usually fit poorly to the operators viewing requirements. Custom made cabins are a better choice, and often at an equal price level.
- If protection grating is applied, use strips instead of pipes, and orient the strips to face the operator by its smallest dimension.
- Do a task-analysis: if the analysis reveals the operator has a lot of waiting time between operations, consider to add elements to the cabin to turn waiting time into useful time, for instance by adding a desk & computer.
- If a cabin is used in a windy environment, opening doors can be challenging and dangerous. The best solution is to enclose the door in a shelter, or use two doors: a sliding door to a lobby, and a normal rotating door from the lobby to the cabin area.
- In case the cabin is used by two operators, combined with a ‘clear view around’ requirement, it can be a good solution to have the second operator position behind the first one, instead of beside. In this case two floor heights should be considered as well.
For more information on crane cabin and control cabin design, contact ErgoS HFE.