26.6 INFORMATION WHICH SHOULD BE EXCHANGED BETWEEN THE USER AND THE DESIGNER OR SUPPLIER
It is strongly recommended that as much detail as possible about the application(s) is given to the manufacturer or supplier. If the magnetic lifter is for a specific application, it is usually possible to provide precise details of the task to be performed. For general purpose use such as handling a variety of steel stock in a machine shop, the information may have to be restricted to a selection of typical examples.
The information should include but is not necessarily limited to the following:
Mass of the load to be lifted.
Material of the load to be lifted, e.g. grade of steel, and the surface finish.
Shape and dimensions of the load to be lifted.
The structure of the load to be lifted e.g. a single slab, bundle or multiple sheets.
Details of the lifting operation including, height, travel and whether load shedding is required.
Characteristics of the lifting machine including the hoisting speed, travel speeds and headroom.
Method of connection to the lifting machine.
Availability of electrical supply if appropriate.
The control mechanism required, i.e. manual, power, integrated or remote.
The control features required e.g. load shedding.
Backup and other safety features required.
Details of the operating environment and service conditions e.g. extremes of temperature, probability of shock loading, uncertainty of mass of the load, whether persons can quickly leave the danger zone.