Today the ISO/FEM-suspension is the most common way of connecting forks to the lift-truck world-wide. According to the rated truck capacity, the ISO/FEM-standard consists of four classes, each of them having a form A and B (e.g. class 2A or 2B).
The difference in the forms A and B is the fork drop (clearence lower hook to floor). All measures are defined in the international standard ISO 2328.
For more than 20 years the ISO/FEM-suspension has been an international standard for most lift-trucks.
The table below is the list of important measurement
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