Blue Cube Systems - Mining Technology | Mining News and Views Updated Daily
Join Our Newsletter - Get important industry news and analysis sent to your inbox – sign up to our e-Newsletter here

Blue Cube Systems

In-Line Grade Quantification Instrumentation

Blue Cube Systems, a technology company based in Stellenbosch, Western Cape, South Africa, designs, manufactures, distributes and supports in-line mineral quantification instrumentation.

The Woodmill, Shop 14B Ground Floor,
Vredenburg Street,
Stellenbosch 7600,
South Africa

The Woodmill, Shop 14B Ground Floor,
Vredenburg Street,
Stellenbosch 7600,
South Africa

Blue Cube Systems, a technology company based in Stellenbosch, Western Cape, South Africa, designs, manufactures, distributes and supports in-line mineral quantification instrumentation.

We offer mineral process analysers, slurry stream analysers, chrome analysers, copper analysers and silica analysers.

In-line mineral quantifier

The company recently introduced state-of-the-art instrumentation for the in-line measurement of mineral grades in froth flotation concentrator plants.

The technology used in the flotation applications is a further development of the proven Blue Cube MQi in-line mineral quantifier. It is based on diffuse reflective spectroscopy combined with proprietary chemometric techniques, adapted for the measurement of froth slurries.

The technology can differentiate between different mineral versions of the ore eg copper oxide and copper sulphide.

Flotation plants for the measurement of froth slurries

In flotation plants, the final product must conform to the required grade specification, and at the same time, a satisfactory recovery must be maintained. To achieve optimal adjustment and the tuning of the flotation equipment, operators require reliable real-time information about the composition of mineral streams at various locations in the plant.

The Blue Cube technology provides the required fast and reliable grade information. It is a new method for rapidly determining in-line elemental and mineral concentration, enabling control and rapid stabilisation of the flotation circuit, as well as optimised settings for it.

Other applications

Units are also available for dry and solution applications and applications for the measurement of solutions are based on absorption spectroscopy and require a clear solution. Current examples include: composition measurement in heavy mineral sands and measurements of impurities in solution in the hydromet industry.

Installation and calibration of flotation instrumentation

Installation of the unit is easy and requires only minor mechanical alterations. Calibration of the unit is done against 4E fire assay, XRF or ICP analysis. Each Blue Cube MQi installation is connected to the company’s facilities in Stellenbosch by an internet data link. This enables supervision and calibration of the unit. The Blue Cube MQi technology can be installed at a relatively low capital cost and imposes very low operating costs. The company provides an ongoing product support service.

A total of 54 Blue Cube MQi units have already been installed at locations in South Africa, Namibia, Botswana, Zambia and Australia.

Mineral instrumentation hardware for processing plants

The Blue Cube MQi hardware package is very robust and was specifically developed for the harsh environments of mineral processing plants. It is intrinsically safe and contains no hazardous components such as radioactive isotopes, high-intensity lasers or high-temperature devices. The Blue Cube MQi carries CE certification.

Output from the Blue Cube MQi can easily be linked to the client’s SCADA system. Operators can now monitor product grade in real time and make rapid process adjustments to control the final grade close above the defined penalty grade while maintaining optimum recovery.

MQi Slurry Analyser

The MQi Slurry Analyser is used for an in-line measurement of Slurry Stream composition.

MQi Hydromet Analyser

The MQi Hydromet Analyser is used for an in-line measurement of the composition of solutions.

MQi Dry Analyser

The MQi Dry Analyser is used for the in-line measurement of dry free-flowing streams with grain sizes below 2mm.


The Blue Cube TempoTrack is installed above a flotation cell and can be used together with the MQi Slurry Analyser or independently for real-time optimisation of flotation processes.

Pre-amenability Studies

Quantitative full amenability studies are ideally performed on a set of 50 to 60 well-chosen samples with known compositions. A few additional 'unknown' samples may also be included for prediction of their analysis values.

Range of Mineral Analysers

This white paper contains details about Blue Cube's range of mineral analysers, which includes Blue Cube MQi Slurry Analyser, the Blue Cube Tempo Track, and Blue Cube MQi Hydromet Analyser.

High Grade Ore Through Accurate Data Collection

Blue Cube Slurry instruments are installed in-line and are suitable for slurry applications such as flotation operations, wet or dry magnetic separation, electrostatic separation, gravity separation and leach operations

Blue Cube Systems Expands Global Distribution Network

South African manufacturer of in-line real-time mineral analysers Blue Cube Systems has appointed distributors in the Middle East, Central Asia, and South America, adding to its global distributor network. The company recently exhibited their products in Moscow and Santiago, and will also exhibit in Canada within the next two months.

Blue Cube Systems

The Woodmill, Shop 14B Ground Floor

Vredenburg Street

Stellenbosch 7600

South Africa

South Africa

BCS RSA (Pty) Ltd

37 Hester Road




South Africa


BCS (AU) Pty Ltd

Ground Floor Centrepoint Tower

123b Colin St

West Perth

WA, 6005




Newtonlaan 115

3584 BG Utrecht