Modern Mining February 2022

SUPPLY CHAIN News

BMG develops high efficiency Synergy electric motors and IE5 units from the factory, to meet

BMG’s team of electric motor designers and engineers have worked with global electric motor specialists, to develop high efficiency Synergy electric motors, that set the benchmark locally for arduous duty, high efficiency motors. BMG’s flagship Synergy range of asyn- chronous cast iron motors complies with the efficiency requirements as stipulated in SANS 60034-30:2009 and has SABS cer- tification, which translates into production efficiency advantages for the local market. Standard Synergy 3-phase asynchro- nous cast iron motors encompass the latest technology in electric motor design and are used in many industries, including mining and metallurgy, pumps and water treat- ment, petroleum, chemical, cement and sugar and paper milling. BMG supplies a full range of Synergy IE3 motors ex stock and can also supply IE4

exact requirements on each mine. “Almost two thirds of the power consumed by the mining sector is associated with electric motors, par- ticularly those used for pumps, fans and conveyors. The majority of motors on the mines are not optimised for maximum effi- ciency,” says Graeme Neilson, business unit manager, electric motors, BMG. “Apart from energy saving – a critical issue facing Southern Africa – Synergy motors have impor- tant advantages over other electric motors. These benefits include longer service life, suitability for voltage variation applications, reduced temperature rise and minimal maintenance requirements. Synergy motors also of fer reduced

Synergy IE3 high efficiency electric motor 2021.

noise and vibration levels, higher reli- ability, greater flexibility and lower cost of operation.” Synergy IE3 motors incorporate high level specifications and features, includ- ing an IP66 rating for protection against the ingress of dust and water and an over- sized terminal box with a removable gland plate, for easy replacement of the cables. Class H insulation, with a Class B (80°C) temperature rise, means the insulation can safely withstand heat that is higher than the motor’s operating temperature at full load. Motors from frame size 80 to 132, have sealed bearings and all motors 160 frame and above have re-greaseable bearings. The standard lubrication nipples are manufactured from brass or stainless- steel material and are suitable for all environments. 

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Synergy high efficiency electric motors at a coal mine installation.

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BMG’s flagship Synergy range of asynchronous cast iron motors complies with the efficiency requirements.

40  MODERN MINING  February 2022