Motor rebuilt for Zambian copper mine
October 2016
News
Marthinusen & Coutts, a division of Actom, recently completed the rebuild of a 6550 kW 2 pole 11 000 V squirrel cage induction blower motor for a copper mine in Zambia.
According to Rob Melaia, engineering and technical executive at Marthinusen & Coutts, the motor had suffered a rotor failure, which caused collateral and associated damage to the stator and also considerable damage to the rotor laminations at the core extremities.
The repair work undertaken comprised a stator rewind, a rotor rebar, including a partial recore with new laminations, and the replacement of the P900 high strength rotor retaining rings.
Interestingly, the retaining rings are made from the same steel used for the largest turbo generator in the world and it was sourced by Marthinusen & Coutts from a leading German supplier in record time. “Working closely with our network of local and international partners facilitates access to specialists in all fields and allowed fast procurement of these specialised rings,” says Melaia.
Once the rebuild had been completed, the motor was tested at Marthinusen & Coutts’ facility which houses the third largest high speed dynamic balancing machine in sub-Saharan Africa. “We were able to perform high speed balancing as well as a full no-load run test to verify vibration and bearing integrity condition performance,” concludes Melaia.
For more information contact Richard Botton, Marthinusen & Coutts, +27 (0)11 607 1700, [email protected], www.mandc.co.za
Further reading:
RS South Africa shapes future engineering talent
RS South Africa
News
RS South Africa is demonstrating that nurturing future engineers goes beyond traditional classrooms or competitions. On STEM Day, the company shone a light on the full spectrum of its educational initiatives.
Read more...
ABB and Compu-Power bring high-efficiency UPS innovation to IS3 X-Change 2025
News
ABB recently participated in the 31st annual IS
3X-Change 2025 in Cape Town, alongside its long-standing channel partner Compu-Power.
Read more...
Meta and partners announce completion of 2Africa subsea cable system
News
Meta, in partnership with leading global and regional telecommunications companies, has announced the completion and activation of the core 2Africa subsea cable system. This marks a historic milestone in digital infrastructure, establishing what the world’s longest open-access subsea cable system.
Read more...
RS South Africa retains Level 2 B-BBEE status
RS South Africa
News
RS South Africa has once again achieved Level 2 B-BBEE verification.
Read more...
SEW-EURODRIVE unveils world class facility in Gqeberha
News
In a landmark event in the Eastern Cape attended by key customers and industry leaders, SEW-EURODRIVE officially opened its expanded state-of-the-art facility in Gqeberha, marking a major milestone in its strategy to strengthen regional support and deepen its footprint in the region.
Read more...
Africa’s brightest young battery innovators
Schneider Electric South Africa
News
Schneider Electric and Enactus, the international NGO dedicated to inspiring students through entrepreneurial action, have announced the winners of the 2025 Energy Transition Battery Innovation Challenge, funded by the Schneider Electric Foundation. It empowers young innovators to design battery solutions addressing the region’s most pressing energy challenges.
Read more...
Africa’s strategic role in powering the global clean energy future
News
The 2026 Africa Energy Indaba is to spotlight Africa’s mineral wealth, industrialisation potential and the urgent need for sustainable value chain development.
Read more...
Crash reconstruction tests advance vehicle safety research
News
The University of KwaZulu-Natal’s Scientific Multidisciplinary Advanced Research Technologies (SMART) Lab recently participated in a series of collaborative crash reconstruction tests held at the Toyota Test Track.
Read more...
Siemens and HD Hyundai to accelerate revitalisation of USA shipbuilding
News
Siemens Digital Industries Software has signed a memorandum of understanding with HD Hyundai to drive the revitalisation and modernisation of the commercial shipbuilding industry in the USA.
Read more...
Accelerating Africa’s smart manufacturing future
News
Automation Day, a dedicated one-day conference within the Manufacturing Indaba 2026, will bring together industry leaders, innovators and policymakers for an in-depth exploration of how automation is reshaping Africa’s manufacturing landscape.
Read more...
printer friendly version