Weight of the Headache ball or overhaul ball.The Gross Capacity must include the weight of anything and everything that is mounted or stowed on the boom of the crane or hanging from the boom tip. The maximum load must never exceed the crane’s Net Capacity! The actual load the crane can lift is referred to as the “Net Capacity”. The values given in the charts are “Gross Capacities” or “Rated Capacities”. How To Determine The Net Capacity Of The CraneĪccording to crane hunter, the capacities listed in a cranes load chart are not the actual loads that can be lifted on the hook. The “Stowed jib deductions” row is what you would deduct if the jib was stowed on the base of the boom for the particular boom length. The gross capacity of this crane can be determined by either following the radius column and interesting boom length, or following the boom angle column and intersecting the radius or boom length column.
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