This service covers cranes which may be used
in heavy machine shops, foundries, fabricating plants, steel warehouses,
container yards, lumber mills, etc., and standard duty bucket and magnet
operations where heavy duty production is required. In this type of service,
loads approaching 50 percent of the rated capacity will be handled constantly
during the working period. High speeds are desirable for this type of service
with 10 to 20 lifts per hour averaging 15 feet, not over 65 percent of the
lifts at rated capacity.
