Donhad Pty Ltd offers its customers a comprehensive grinding media advisory, manufacturing and supply service. We aim to deliver the best value proposition to our customers by having a thorough understanding of their processing operations, business performance drivers, and developing key performance measures.
Our technical support team of experienced production metallurgists are focused on achieving the lowest possible cost per tonne of ore ground. Donhad’s trained personnel can assist in mill optimisation using our Donhad Optimiser software and other industry packages. We also have many years’ experience in mining operations around the world.
A continual programme of research and development ensures that our material usage and production processes are at the cutting edge of the industry internationally.
In consultation with our clients we actively monitor and cross correlate grinding media consumption with mill performance to reduce megawatt hours per tonne and maximise grinding efficiency.
Our manufacturing facilities utilise a continuous bar forging system with induction heating. This operation manufactures balls ranging in size from 27mm to 105mm by roll forging and SAG balls in the size range 125mm to 150mm are produced by upset forging. We also offering grinding rods for rod mill applications.
Steel chemistry and heat treatment are tailored to ball diameter and intended application to optimise mechanical integrity and wear resistance. This produces a ball which resists spalling and breakage.