Courier® 8X SL analyzer

Accurate monitoring, reliable results

Last updated Aug 2026

The Metso Courier® 8X SL analyzer delivers real-time measurement of both light and heavy elements, helping operators maximize recovery, improve concentrate quality, reduce costs, and quickly adapt to changing ore conditions for more efficient plant performance.

Gain insights needed to maximize recovery and unlock the full potential of your flotation circuit

Improved recovery

Early detection of process disruptions enables operators to take corrective action sooner, helping maximize recovery and reduce valuable mineral losses

Higher concentrate quality

The analyzer measures both light and heavy elements, allowing operators to optimize concentrate quality and reduce impurity levels without sacrificing recovery

Better process visibility & control

Real-time, continuous monitoring of feed mineralogy and process performance provides frequent assays that support faster and more effective process control decisions

Lower costs & resource consumption

Automated sampling and analysis reduce the need for manual sampling and laboratory work while enabling more efficient use of energy, reagents, and raw materials

Benefits

Laser-induced Breakdown Spectroscopy (LIBS) technology is used to measure both light and heavy elements for monitoring and control in mineral processing plants, enabling optimization of concentrate impurity content while maintaining the best possible recovery.

Accurate monitoring of changes in feed mineralogy
Improved concentrate quality
Improved recovery through early detection of process disruptions
Reduced need for time-consuming and labor intensive manual sampling
More efficient use of energy and raw materials

What's new

What's new compared to the Courier® 8 SL

Best available technology with diode pumped laser
Improved temperature control, robustness, and serviceability
Doubled measurement speed and 30% shorter cycle time
Next generation Courier® X software platform
Connectivity features enabling
- Remote support and calibration services
- Metso Metrics with KPI reporting to enable improved equipment availability
Higher precision due to more stable slurry flow

Operation

Offers a wide range of benefits

Accurately monitor changes in ore type
Control concentrate quality and minimize undesirable variations
Reduce the cost of assaying and metallurgical sampling with automatic, consistent sampling and analysis around the clock
Improve recovery levels with early detection and rapid resolution of process disruptions
Benefit from real-time process monitoring and control enabled by frequent assays
Speed up process development with results from process tests and changes available more quickly
Easily upgrade and expand the system to meet changing plant requirements with the analyzer system’s modular design

Applications

Iron ore concentrators
Online measurement of Si, Al, S, C, Mg, Ca, and other light element concentrations in feed and concentrate streams. Supports optimal product quality without compromising recovery.

Iron pellet plants
On-line measurement of Si, Ca, C, Al, and Mg before and after additive mixing.

Ni flotation from serpentinized ores
On-line measurement of Mg and other light element concentrations in feed and concentrate streams.
Optimal product quality without sacrificing recovery.

Laterite Ni concentrators
On-line measurement of Si, Al, Fe, and other light element gangue minerals in feed and concentrate
streams. Optimal product quality without sacrificing recovery.

Zn and Pb concentrators
On-line measurement of Si, Mg, Al, and concentrations of other light element gangue minerals in feed and
concentrate streams.

Sulfide gold concentrators
Measurement of S, As, and Fe in concentrate to optimize autoclave operation. Measurement of sulfides in flotation tailings to monitor recovery. Measurement of C to optimize carbonaceous matter removal.

Phosphate concentrators
Final concentrate quality control: measurement of P content and Ca/P ratio. Flotation recovery optimization and reagent control: measurement of P in feed, concentrate, and tailings. Measurement of penalty elements (Mg and Si).

Spodumene concentrators
Final LiO2 grade control and recovery optimization by Li measurement. Measurement of Fe in the final product. Measurement of other light elements e.g. Ca, K, Mg and Na..