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NCPI SUPPLIES ONE OF THE LARGEST GEAR DRIVEN MILLS EVER MANUFACTURED

NCPI successfully completed the supply of one of the world’s largest gear driven mills ever manufactured for RED 5’s KING OF THE HILLS (KOTH) gold project in Australia.

NCPI was awarded this contract by Engineering, Procurement and Construction (EPC) firm MACA Interquip and has delivered on all contractual commitments made during the lead up to the order placement.

The company supplied the KOTH project with a 36’Ø x 17,5′, 18 MW, Dual direct Drive Bi-directional Semi-autogenous (SAG) mill supported off multi-pad hydrostatic trunnion bearings.

The direct drive mill excludes the gearboxes, with the two main drive synchronous motors controlled by an ABB VVVF (Variable Voltage, Variable Frequency Drive) and directly coupled to the pinion shafts via torque limiting couplings. The duty of the mill is to grind Run of Mine (ROM) material fed at a rate of 500TPH from the primary crushing circuit at a F100 material size of 320mm, delivering a product of P80-150µm.

The Mill start sequence via the ACS6000 Variable Speed Drive ensures a controlled Mill start with locked-charge protection, which protects the mill structural integrity at all times. The Mill Drive train is designed to allow Mill Inching for mill maintenance purposes and includes the advantage of automatic Mill positioning to optimize relining functions.

NCPI’s scope of work included the supply of the mill, delivered CIF to Freemantle port, Western Australia, and included installation supervision and commissioning assistance.

“The SAG Mill’s delivery time frame was critical for this project.”

NCPI committed to an ex works delivery time frame of 38 Weeks from order. NCPI achieved on-time delivery, including meeting shipment delivery time frames despite the COVID19 pandemic. NCPI is proud to have met the client’s expectations in this regard.

The mill installation is 95% complete with commissioning planned to commence in March 2022. Installation has run to schedule with NCPI providing the onsite Mill Installation supervision services. NCPI will supply the client full aftermarket sales service, on-site service and technical support through our local partners.

“NCPI is pleased to have successfully completed this mill supply following two other successful mill installations into the Australian market.