Making a splash in the Western Cape (Date), 2015
The aeration process at the Stellenbosch municipal water treatment plant in the Western Cape has been dramatically improved
after ten world-class modular compact (MC) industrial gear (IG) units supplied by leading drive specialist SEW-EURODRIVE were
installed by water project specialist, Inenzo Water. The MC units can handle from 6 to 65 kNm of torque and can be universally
mounted. One of the initial and most critical stages of water treatment is to aerate large volumes of water in treatment plants.
Aeration is the process whereby water is enriched with oxygen through a continuous rotation and churning process.
This enables the release of harmful gases from the water and kills certain bacteria in the water. It also hastens the breakdown
of organic matter in the water. Aeration is usually achieved by rotating a large propeller through the water volume, thereby
mixing air into the water. This propeller is exposed to huge radial and axial forces, and if the drive gear is incorrectly
installed, it can lead to failure and damage to the propeller and the gearbox driving it. SEW-EURODRIVE Cape Town branch
manager Byron Griffiths notes that the company's extended bearing distance (EBD) configuration and drywell bearing housing
is ideally-suited for the aeration process. "It allows for much higher radial and axial forces to be absorbed by the gearbox,
while the drywell bearing housing ensures no oil can leak into the sensitive water treatment process."
Inenzo Water projects manager, Chris Erasmus adds: "In our industry, we must ensure that we offer clients top solutions at
competitive prices. Over the years, we have found that the pricing, quality and service offered by SEW-EURODRIVE played a
decisive role in our procurement for this project." Griffiths indicates that SEW-EURODRIVE has extensive application knowledge
with regards to gearboxes driving aeration equipment. "By listening to the client's requirement and understanding the unique
problems faced on this project, the company was able to marry its own extensive product range and knowledge with the expectations
of the client."
SEW-EURODRIVE strives to ensure that every application requirement is fully understood and that each product delivered meets
with the high standard of service and quality that its clients have come to expect over the decades. Griffiths reveals that
the SEW-EURODRIVE compact range of IG units are becoming increasingly popular in South Africa. One of the key advantages in
selecting the MC series of IG units is that they are assembled by SEW-EURODRIVE in Nelspruit. Griffiths points out that local
assembly cuts down on international shipping costs, which results in savings for the client. "The units can also be produced
faster, which reduces project lead times. Availability of spares and turnaround time on repairs is also minimised to further
ensure high levels of availability.
Due to SEW-EURODRIVE having the expertise to assemble these units in South Africa, some degree of customising and order flexibility
can also be offered to the client too," he concludes.
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