1x 12.5t and 1x 20t Double Girder Electric Overhead Travelling Cranes complete with 1x Free Standing Gantry
Having previously manufactured and installed several crane systems for this world leader in aerospace on wing support we were delighted to be selected to supply the equipment for their new support centre at Heathrow.
Originally the target was to give maximum coverage with maximum height and to supply smooth moving equipment with inverter control.
Because this customer works in the service industry reliability of the equipment is key and when handling aircraft engines of high value and importance dependability is essential.
IndustryAviation (Aircraft on wing support)
RequirementTwo new overhead cranes and free standing gantry system
Equipment TypeDouble girder overhead travelling cranes
SWL1x 12.5 tonne and 1x 20 tonne
Span18.5 metres (12.5 tonnes) and 5.5 metres (20 tonne)
Speeds4 & 0.8 hoisting, 20 & 5 hoist travel, 40 & 10 bridge travel (12.5t) and 20 & 5 bridge travel (20t), all motions dual speed with hoist and bridge travel by inverter control.
DutyHoist, Hoist Travel and Crane Travel all FEM M5
Other / ExtrasThe 12.5 tonne crane is supplied with 2 x 12.5t hoists and load summation technology to prevent the crane from lifting over 12.5 tonnes. The 12.5 tonne capacity can be lifted on one hoist or across the two. Both cranes are supplied fitted with radio remote control.
GantryBoth cranes run on a 35 metre long free standing gantry system which is 18.5 metres wide apart from the final 9 metres which are 5.5 metres wide for the 20 tonne crane. Floor to the rail is 6.3 metres. Because the investigation into the floor found there were few places columns could be positioned this gantry had to have very unusually spaced supports. These were between 3.5 and 12.3 metres. Due to the distance of the spans combined with the height and capacity of the cranes we opted to fabricate and install gantry tracks made of box girder construction. This helped keep the weight and the cost down.
DateJanuary / February 2014