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Gear units from Siemens Industry Automation and Drive Technologies (IAandDT) have helped a UK oil refinery reduce failures and downtime on its high-speed gear units.

The refinery produces significant quantities of petrol and other useable by-products every day.

The incoming crude oil requires sophisticated handling systems, performance and reliability to ensure constant production levels.

There are 26 Flender gear units serving several processes within the refinery, which have been in service for more than 30 years.

Previously, reverse engineered gearing was supplied by a third party, allowing the refinery to refurbish its gear units in-house, but downtime was proving a growing problem and efficiency needed to be improved.

The company therefore reverted to new and original Flender gearing and associated parts from Siemens Automation and Drive Technologies, in five different sizes, to solve the long-term issue.

The first units were provided over four years ago, and so far no failures have been recorded.

Due to this excellent track record, Siemens is now also providing a full maintenance and support service, incorporating training, service and assistance with ongoing pump upgrades, partnership flexibility and stock supply.

Due to the improvement in gear quality, a reduction in noise output has been achieved, which is another added benefit for the refinery, coming in addition to the reduced downtime, improved efficiencies and increased throughput.

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