Please note that the Flow Scanner XL has been discontinued and has been replaced by the Flow Scanner which now has a more modular design.

Flow Scanner

Flow Scanner XL CAT truck

The new Flow Scanner XL – designed for wide conveyor belts and very high volumes.

For extremely high volumes of organic material, with extra wide conveyor belts, try the Flow Scanner XL for size! Same technology and features as the Flow Scanner. Benefits are often in-line with the size of operation and the Flow Scanner XL is available to deliver the maximum value! 


Better process control

Beforehand knowledge of the raw material means improvements in yield, productivity, energy, stability and quality in industrial processes such as pulp and paper and bio-energy production.


Know what you’re buying

Let the Flow scanner inspect every piece of material and provide a report on the full delivery, so you pay only for the material your process needs.


Find the rocks

Metals, stones, sand, glass, and other scrap items are just waiting for the opportunity to wreak havoc with your process. The Flow scanner scrutinises everything and makes an automatic removal system possible.


It measures water. But that’s not all.

The dual X-ray technique can reveal a lot more information on the organic material on the belt as well as the belt itself. Together with additional complementary techniques the Flow scanner can deliver a range of measurement data.


Moisture icon

Moisture | Whether it is inherent to the material or free water, snow, or ice, the Flow scanner delivers this fundamental organic property with high accuracy, in an instant.

Weight icon

Weight | The Flow scanners two X-ray energy sources, measure across the full width of the belt, deliver wet mass flow rates. Together with the moisture measurement the amount of Bone Dry material in the process can be determined.

Foreign objects icon

Foreign objects | Inorganic material produces a very different signal on the detector. The strength and area the signal covers can be set so that larger object trigger an alarm for removal whilst smaller items are recorded for review.


Density icon

Bulk density | Does bulk density changes disturb your process? Sometimes its good to know when and why bulk density changes. Through the addition of optional hardware the Flow Scanner can deliver volume and bulk density values.


Energy icon

Energy content | Energy production can be so much more efficient and cost effective if the bio-material is burnt correctly. On-line real-time analysis enables the power station to run with a constant energy content flow to reduce noxious gases and excess steam production.

Coming soon!

Volume icon

Volume flow | Limiting changes in volume flow are also a factor in a stable pulp production process. The Flow Scanner can give early warning of large changes and help route cause analysis.

Coming soon!

Large range of material profiles

In principle any organic material can be scanned by the Flow Scanner. New materials are analysed at the Mantex laboratory. A new material profile can be loaded into the Flow Scanner analysis software.


Choose from the list of existing material profiles or contact Mantex to discuss your process material.

With any material profile small amounts of other species are permitted without compromising the instrument accuracy.

More about materials



The power of QDXA technology

Quantitative Dual X-ray technolog is ideally suited to measuring organic material. X-rays pass through the entire material to be measured without damaging it in any way. Dual energy means the amount of moisture can be determined even if the dry content, bulk density, or volume changes.


Great accuracy

The Flow scanner is calibrated against the industry accepted standard suitable for the application – for example the gravimetric (oven) method. A Mean Absolute Error of less than 1% is specified for the instrument and is often significantly better.

100 % material

X-rays cover the full width of the belt and record every 1-2 mm. This ensures all material is measured and eliminates the error from samples that are not representitive of the whole flow.

Real-time results

Should your process require an instantaneous control signal or a rolling hourly average the Flow scanner delivers on-line data in real-time.


Snow and ice or hot and steamy, the Flow scanner handles organic materials in any state. Frozen raw material with or without additional ice or snow.


Built for high-volume industrial use

The Flow scanner is built for demanding industrial applications. A sturdy splashproof outer frame is easily modified to be compatible with many different conveyor belt geometries and temperature environments. Overpressurised compartments and automatic pressurised air cleaning systems keep critical components dust free.


The Flow scanner is built to provide continuous round-the-clock performance without regular calibrations or cleaning, and with minimum maintenance. The availability is guaranteed better than 97% and is normally over 99%.

Web enabled

Ethernet connection enables Mantex to monitor your Flow scanner status. This has proved invaluable for education, operational questions, advising and scheduling preventitive maintenance.

Plugs into your control system

A choice of industry interfaces such as Profibus, and access to industry expertise, ensures effective integration to fully optimise your process.

Safety first

Although relatively low powered X-rays are used the safety of personnel is paramount. Installations all comply with local and international legislation and feature fail-safe interlock mechanisms, clear information, and customer training.


Maintenance engineers and lab personnel will be glad to hear that the Flow scanner features a monitoring system that automatically adjusts for belt wear-and-tear, temperature, and source variations.

Easy to install. Easier to maintain.

Mantex engineers have a simple three point plan for new installations that ensures a successful project.

Flexible installation

Engineers visit your site to detail the preparation work and Flow scanner modifications required. Help is even available, together with external consultants in the industry, to complete the Benefit analysis, and to optimisation study so the Flow scanner has the maximum effect.

Short downtime

The Flow scanner tunnel is erected with minimum disruption to production. The rest of the instrument can then be assembled in safety with only a short stop to insert the detector and perform switch on, testing, and calibration.

Low maintenance

The system is handed over for customer validation and integration. Regular weekly maintenance is light and Mantex engineers are on-hand to assist operations throughout the support phase..

Need more information?

Contact Sales Manager Harvey Washbrook on
or +46 70-877 06 79.