The Opportunity
A Demag bridge crane or overhead crane with a Wire Rope Hoist at a metal flooring company manufactures metal floor decking products and associated metal flashings, for use in the fast track construction industry. With a projected output of over 2,500,000 sq feet of metal decking per year, performance and reliability were deciding factors in selecting Demag Cranes & Components to supply the Bridge crane with the Demag Wire Rope Hoist.
The Solution
Demag 10 Ton under running Bridge Crane with a DRPRO Wire Rope hoist on a Demag Bridge crane. The wire rope hoist is equipped with 2 speed lift, low headroom under running style trolley with a top running single girder beam bridge crane or also called an overhead crane configuration. The wire rope hoist requirement was 2 speed lift, but the other travel motions are equipped with variable speed for ease when positioning on cutting equipment.
- The Bridge crane overhead crane included the standard travel VFC features, allowing trolley and bridge infinitely variable speed motions that gave the operator the precision required. From a high speed of 120FPM to only a few FPM when needed on the trolley motion, and a fast 160fpm on the bridge to also a few FPM when positioning.
- Lift requirement wire rope hoist was standard speed, but trolley and bridge needed positioning capability without compromising overall speed when needed for fast throughput.
- The trolley and bridge are able to change speed as required by the operator. The travel on the bridge and trolley are infinitely adjustable by the operator. This allows motions to be fine-tuned to correspond with each individual requirement. The speed and the acceleration on the bridge is adjusted by the operator by changing the pressure exerted on the button of the control station. This configuration allows precise position, but also fast traveling of the bridge crane when required.
Wrap Up
The operators have been very pleased with the ease of the bridge crane and the wire rope hoist.
Overall safety of the bridge crane, wire rope hoist and the overhead crane system has improved.
Continuous reliable operation of the bridge crane has been yet another benefit.
