Real-time particle size analyser for smarter grinding control

Monthly or quarterly billing, with a one-year initial contract duration.

One-time payment available for one, two or five years. 

Real-time particle size data enables operators to make immediate adjustments to the grinding circuit rather than waiting hours for laboratory results. The KREBS® OSA measures particle size distribution continuously from inside the process stream, providing live visibility into feed consistency. This allows operators to prevent surges in coarse or fine particles, maintain steady-state operation, reduce overgrinding and energy waste, and optimise downstream flotation and leaching performance - all without interrupting the process.

The KREBS® OSA removes the need for manual sampling by measuring particle size distribution directly within the slurry flow using a pulse-based, intrusive measurement principle. This eliminates human error, removes operator exposure to moving equipment and process streams, and delivers continuous results rather than periodic snapshots. The system provides measurement accuracy within ±5% and stores process data for up to one year.

Continuous particle size measurement means monitoring particle size distribution in real time, directly from within the process stream, with no need for operators to collect physical samples. The KREBS® OSA achieves this using a sensitive oscillator positioned in the mass flow. Each particle impact generates a vibration response that advanced algorithms convert into an accurate size distribution profile — continuously and automatically.

Optimal particle size distribution is critical for flotation and leaching performance. When particle size drifts outside the target range, recovery drops. The KREBS® OSA gives operators immediate visibility into particle size trends so they can correct deviations before they affect downstream performance. Continuous monitoring also prevents the surges in coarse or fine material that cause inconsistent feed to flotation cells or leach pads, helping stabilise recovery rates. 

Yes. The KREBS® OSA is available through a subscription model that removes the upfront capital expenditure barrier. Two plans are offered: a pay-per-use equipment contract (monthly or quarterly billing, one-year initial term) and a prepaid subscription (available for 1, 2 or 5-year terms). Both include full installation, calibration, software licence, maintenance, spare parts and field service support — so the total cost of ownership is predictable from day one.