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Engineered
Lifting Case Study
January 6, 2009
Replacement of Existing Boom
Winches
with Ace World Companies Winches and Magnetek Controls

Engineered Lifting Systems was
contacted earlier this year to design, propose and provide a pair of
new boom winches for unloading barges. The old booms were being
upgraded to heavy units, and the old winches would not be adequate
for the increased capacity. The requirements for the winches were
123 fpm line speed with a static load of 12,000 lbs AND fit each
winch into a very small footprint. Another constraint that we had to
deal with was a harsh environment which included dust, dirt, extreme
cold and extreme heat.
What we proposed to the customer was a pair of
Ace World Companies
winches (one for each boom) with A150 gearboxes, 50 hp foot mounted NEMA frame 1200 rpm motors, and Mondel thruster brakes. The
Mondel
thruster brakes were provided with external torque springs. Magnetek
supplied the controls for the boom winch which included a Magnetek
VG+ Series 3 drives using Avtron Mill Duty 1024 PPR encoders. We
also included motor and control heaters with control panel heaters
and thermostats.

Old boom winch

Existing Boom Winch
NOTE: Cable travel is vertical


New layouts were made for both winches, specific to each location
and its
clearance requirements and serviceability for maintenance.

New Magnetek Controls ready for continuous 24/7, 365 service!


2 weeks old and already covered in dust!
The entire system was installed and
tied into the existing control house for the barge unloading
operation. The units have been operating without any issue, and are
providing consistent control for the booms.
If you have a winch application that
needs an expertly designed and installed upgrade call Engineered Lifting Systems and
let us solve the problem!
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