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:

Reinstatement opportunity for ECSA registration
News
In 2023 the Engineering Council of South Africa (ECSA) announced a special opportunity for engineers in South Africa to reinstate their registration status if it had been cancelled. This exclusive offer is available until the end of August 2024.

Read more...

---

Two weeks to go: AATF 2025 welcomes Africa’s industrial future
News
With less than two weeks to go, the countdown to Africa Automation Technology Fair 2025 is on - and there’s never been a better time to register.

Read more...

---

Groundbreaking renewable energy skills platform
News
South Africa’s renewable energy sector has taken a significant leap forward with the launch of PowerUp. A South African first, this online platform is designed to equip the country’s workforce with the skills required to meet industry demands.

Read more...

---

Innomotics wins Platinum TITAN Brand Award for Best Corporate Rebranding
News
Innomotics has been awarded with the Platinum TITAN Brand Award for Best Corporate Rebranding. The international jury honoured Innomotics’ efforts to develop a powerful and recognisable brand after the carve-out of Innomotics from the Siemens Group in 2023.

Read more...

---

Unlocking Africa’s hydrogen potential
News
Africa is positioning itself as a frontrunner in the global green energy revolution, with hydrogen emerging as a critical commodity of strategic and national importance across the continent. Namibia is putting ambition into action by having already reached a number of key milestones towards final investment decision on up to five projects.

Read more...

---

Fuchs doubles sales volume
News
An aggressive growth strategy in South Africa and sub-Saharan Africa over the last decade has resulted in Fuchs Lubricants South Africa achieving a CAGR of 6% in volume sold since 2015. The result of this is that sales volume has nearly doubled in this time.

Read more...

---

High-quality sensing and automation equipment
News
The Turck Banner Demo Van is showcasing the company’s latest products and solutions.Turck Banner sells directly to end users and OEMs in a broad range of industries and applications.

Read more...

---

SA company uses AI to break the language barrier
News
Helm has a unique approach to AI that allows it to automate customer communication in any of South Africa’s 11 official spoken languages.

Read more...

---

From ground to compound: the journey of crude oil
Wearcheck News
You’re in for a ‘crude awakening’ when you download WearCheck’s latest Technical Bulletin. You will be treated to an in-depth explanation of the processes of producing oil, fuel and other petrochemical wonders that power our modern lifestyle.

Read more...

---

2025 – a year for growth, amid industry challenges
News
Automation is rapidly emerging as a catalyst for industrial transformation, enabling businesses to meet sustainability targets, enhance productivity and drive economic efficiency.

Read more...

---