20 TON MAGNET DUTY OVERHEAD CRANE (#21143)

Project Description:
G.W. Becker, Inc. commissioned a new 20 ton electric overhead traveling magnet duty crane for a steel producer in Pennsylvania.  This new crane is for an addition to the customer’s melt shop facility.  This 3-motion heavy service EOT crane was designed to be installed on an existing runway system of 51’ span and 68’ of lift.  Full length walkways were provided on each girder.  The hoist design included flux vector control specifically designed for a hoist without a mechanical load brake. The travel drives were designed with VFD control. This crane was designed for mill duty, with foot mounted drives, AP wheel bearings, steel reducer housings with bearing cartridges, AISE rated DC rectified shoe brakes on each motion, high temp wiring and motors for high ambient temperature range of 41^O F to 160^O F.  Equipped with a 5-speed ‘Belly Box’ radio control for ease of operation during material handling, a pendant back-up system was included to provide a second means of operation.  This turnkey project included the new EOT crane and installation to meet all current applicable CMAA, OSHA, ANSI/ASME, and NEC specifications.