A new quarry processing line in the Southern Highlands of New South Wales, Australia, is benefiting from the power and flexibility of Invertek Drives’ Optidrive P2 variable frequency drives to control multiple conveyors, vibrators and a high-power extraction fan. 

Delivered as part of a major plant expansion, the project required a reliable and robust drive solution that could integrate seamlessly with the quarry’s centralised PLC and SCADA system. The installation was managed by an experienced engineering contractor working closely with the site team. 

In total, twenty-five Optidrive P2 VFDs were installed, including twenty-four IP20 units and one IP55 drive controlling a 200 kW extraction fan. The specification was selected to meet demanding operating conditions while providing consistent performance across the site. 

The drives are housed in an environmentally controlled room, with long cable runs feeding motors located throughout the plant. To ensure reliable operation over distance, output chokes were installed, while Ethernet communications cards were fitted to every drive. This allows full integration of each drive into the site’s control and monitoring system. 

 Meeting the challenges 

With several competitors involved in the tender process, the quarry operator was looking for more than just performance. A single supplier solution that could simplify procurement, installation and long-term support was a key requirement. Already using Sumitomo Drive Technologies Buddybox and Paramax gear units, the decision was taken to specify Invertek Drives for the VFDs to complete the package. 

“The Optidrive P2 gave us the right balance of power, connectivity and ease of use,” said Tony Cox, Head of Invertek Drives in Australia with Sumitomo Drive Technologies. “Having Ethernet available on every drive meant the system could be connected quickly with minimal configuration. For the 200 kW extraction fan, the P2’s high power capability made it a natural choice.” 

A spokesperson for the engineering contractor responsible for the installation added: 

“The drives were very straightforward to commission. The Ethernet connection was effectively plug and play, and performance across the conveyors and vibrators has been excellent. The overall system performed exactly as expected from the outset.” 

Future expansion 

The success of the project has already opened the door to further work at the site. A new processing line and the phased replacement of older competitor drives are planned for 2026. 

“This installation demonstrates the benefits of a fully integrated solution,” added Tony Cox. “It provides reliable control today, while giving the customer the confidence and flexibility to expand in the future.”