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VFD tech optimises key mining process

22 February 2024

AN INDONESIAN mining company has significantly improved the transportation and crushing of ore at its site with the introduction of variable frequency drives (VFDs) on a reclaim feeder breaker and conveyor system.

Sumitomo Cycle Drive Asia Pacific has supplied 11 Optidrive P2 VFDs from Invertek Drives Ltd to PT. Harma Contractor Indonesia for a mining project involving a feeder breaker and conveyor.

The high-performance VFDs, with power ranges of 250kW, 160kW, 110kW, 90kW, and 75kW, are being used to control the electric motors that operate components of the reclaim feeder breaker and conveyor. This equipment plays a crucial role in the mining process, as it pulverises large rocks into smaller pieces for further processing and transportation.

“The VFDs are providing precise control of the reclaim feeder breaker and conveyor electric motors, ensuring that they operate at the optimal speed and torque for each application,” says Deddy Christian, business development manager at Sumitomo Cyclo Drive Asia Pacific.

“As a result, the mine has experienced significant improvements in efficiency, reduced energy consumption, and increased productivity. The P2 is specifically designed for high-performance and demanding applications such as mining.”

The reclaim feeder breaker and conveyor work in tandem to extract ore from stockpiles, crush it to the desired size and transport it to the subsequent processing stage. This continuous and uninterrupted flow of material is essential for maximising production efficiency, minimising downtime, and ultimately contributing to higher productivity and overall output.

The VFDs also offer a range of features that make them particularly suited to demanding mining applications. Their robust design, including IP66/NEMA 4X-rated enclosures, makes them dust and water-resistant, ensuring their durability in the harsh conditions of a mining environment. Additionally, the VFDs are straightforward to install and commission, minimising downtime and reducing maintenance costs.