Forklift Load-Center Capacity Derate
Net forklift capacity at the actual load center from the data-plate rating, a pass / fail against the load, and the remaining margin. The capacity plate is the legal rating.
Formula and source
net_capacity = rated_cap x rated_lc / actual_lc (data-plate method); pass = load <= net_capacity; margin_pct = (net_capacity - load) / net_capacity x 100.
ASME B56.1 (Powered Industrial Trucks) and the truck data plate by name; the data-plate load-center method.
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