Electricity and Control July 2022

DRIVES, MOTORS + SWITCHGEAR : PRODUCTS + SERVICES

resist these loads, significantly reducing the radial movements imposed on the seals, bear ings and gears. This results in better reliability, less wear and longer life,” Strydom says.

the particles, which then settle, leaving relatively pure water at the top of the tank. “From there, the water goes through stage six for chlorination and disinfection and, after testing and analysis, it can be safely discharged or recycled,” Strydom adds. MC Series drives “For the aeration drives for this WWTP upgrade, we were approached by one of the local treatment plant OEMs in 2018. Through this OEM, we are supplying 20 units. Although these are not complete turnkey solutions, we are assembling them as pre-engineered drives with the gearboxes, motors and couplings mounted onto cus tom-designed baseplates. Once they are on-site, it is then easy to couple each drive to the aeration impeller,” Strydom says. Central to the 20 aeration units is SEW-EURODRIVE’s MC Series range of parallel shaft industrial gear units, which have been specifically designed for aeration and mixing applications. Of the 20 units, ten are 75 kW units, four are 55 kW and the remaining six are 90 kW drives. “A key feature of the MC units is their extended bear ing distance (EBD), which is purpose designed for shaft loading from agitating, mixing and aerating applications. Such applications transfer high axial and radial loads back into the gearbox. EBD helps to stiffen the shaft to

Other key features include: - An especially compact parallel shaft design - A one-piece robust mono block, which enables horizontal, vertical and upright assembly - An optional ‘Drywell’ seal, which reliably prevents oil leakage from the output shaft - Easy customisation with the range’s modular con cept to achieve optimal gear ratios - Additional optional equipment such as motor adapters, belt drives and backstops. “Following the water shortage in the Western Cape in 2018, when cities in the region were just 90 days away from turning off the taps, municipalities in all provinces are looking to modernise wastewater treatment infrastructure. We are currently involved in several new opportunities,” Strydom adds.

SEW EURODRIVE is supplying equipment for the upgrade of wastewater treatment plants in the Western Cape.

For more information contact SEW-EURODRIVE. Visit: www.sew-eurodrive.co.za

JULY 2022 Electricity + Control

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