Moving airport baggage handling into the future
February 2015: The demands on modern airport baggage handling conveying systems are becoming more complex, as the number of
passengers and cargo per flight increase, while equipment space subsequently decreases.
SEW-EURODRIVE's compact and highly productive mechatronic drive system, MOVIGEAR is the ideal solution specifically designed
for conveyor applications.
SEW-EURODRIVE Mechatronics Engineering Manager Norman Maleka says that MOVIGEAR has been specifically designed to meet these
new requirements. "Its design combines the permanent-field synchronous motor, gear unit and electronics into a single housing,
meaning that the drive unit can be easily integrated into any conveyor system."
MOVIGEAR optimises the efficiency of baggage conveyors that run continuously and support varying loads by handling up to 400
percent overload for five seconds and 200 percent overload for five minutes.
This means that a smaller motor sized for continuous running torque can be used instead of an oversized motor. The result
is an increase in the motor power factor, a decrease in power required to drive the system, and associated energy savings
of 20 to 30 percent during operation.
This is reflected in MOVIGEAR's internationally-recognised super premium efficiency class IE4 rating. Energy efficiency is
further enhanced by MOVIGEAR's integration and co-ordination of its drive components that leads to an extended and reliable
service life. "Not only does this increase the degree of system availability, but it also helps to reduce operating costs
of the baggage handling system. This is a huge advantage in a system equipped with several kilometres of belt conveyors,"
Proven success at Gatwick International Airport This drive technology has for years played a vital role in ensuring high capacity
yet cost effective logistics processes at a host of international airports, such as Frankfurt, Paris, Hong Kong and Sydney.
In the most recent case, London Gatwick Airport launched a £1-billion investment programme to accommodate the ever increasing
number of passengers and raise its passenger capacity to 24 million per year.
The reliability of the baggage handling system was the main focus, says Maleka, "With other key criteria being energy saving,
reduction of installation, start-up and maintenance costs, and a small number of variants, Gatwick Airport's operator recognised
that MOVIGEAR was the only choice for the job."
MOVIGEAR has only four variants, allowing for the development and design of standard handling systems with pre-fabricated
and tested standard modules. The variants include; Binary for stand-alone solutions; As-Interface for easy communication connection;
SBus for functional integration of the drive system; and Single Line Network Installation (SNI) for simplified installation.
"Gatwick chose to implement MOVIGEAR SNI as the variant best suited to baggage handling belt conveyors, since it is able to
function as a group drive synchronising operation and features soft and defined start-up behaviour," explains Maleka. "It
also met the criteria for reducing implementation and system costs through its limited number of components and low-effort
Moreover, the drive is an intelligent device with its own control concept. Its high-quality networking features help to reduce
start-up time and support monitoring and maintenance tasks. Drive tasks can also be solved quickly and easily using the corresponding
application software. SEW-EURODRIVE's innovative drive technology now forms part of Gatwick's modernised north and south
terminals with 300 MOVIGEAR drive units ensuring trouble-free operation of the baggage handling system. According to Maleka,
going forward, that number will be increased to 2 000 units.
Technical support With 14 000 employees across 45 countries, SEW-EURODRIVE's after sales and technical support is guaranteed
to follow up every installation. "Service assistance and backup is an important focus for us, and a major contributing factor
when customers choose SEW-EURODRIVE," notes Maleka.
In terms of support, SEW-EURODRIVE offers commissioning as well as service and repairs. "This is in addition to full project
planning advice from our dedicated engineers, who assist clients with complete drive packages and custom designed solutions,
and training in our advanced training centres. Ultimately, SEW-EURODRIVE ensures that downtime is kept to a minimum," Maleka
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