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The Cement Industry

The Cardox System is used in over 400 cement & lime plants world-wide and by all the major cement manufacturers!

As pioneers of the Cardox System, our expertise and innovation remain unmatched.

Cardox is widely recognised as the most efficient, reliable, and cost-effective method of clearing build-ups and blockages in pre-heaters, cyclones, kiln inlets, riser ducts, cooler areas & rotary kilns.

Cardox International, the original manufacturers and suppliers of Cardox has provided over 60 years of service to the cement industry. Cardox can quickly remove build-ups and restore plant production to optimum levels at operating temperatures, with no need to sit through extended shut down while the vessel cools.


Unlike air-blasters, where cement plants complain of ineffectiveness and report losses of efficiency of up to 75%, using Cardox, there is no loss in efficiency!

Each time you use a Cardox Tube, you are guaranteed maximum pressure to remove the build-up. With a safe and powerful carbon dioxide blast, one Cardox Tube can remove tonnes of build-up, and you’re back up to running at full capacity, with little or no downtime.


The Cardox System is fully approved by the UK Health & Safety Executive and certified by Delta International Products Testing Laboratories.

Cardox Tubes are classed as pressure vessel and are fully regulated under the European Pressure Vessels Directive (PED) and subsequently carry the CE quality marking.

Cardox Tubes are manufactured and tested to the European Pressure Vessel Directive.


Many of our customers report that the Cardox System pays for itself quickly. Cardox is only used when a build-up occurs, so the running costs can be very low. Also, maintenance costs are minimal.

You can read more about how the Cardox System works here.

  • Fully approved and certified

  • The system pays for itself

  • No loss in efficiency

  • Minimal maintenance costs

  • Less downtime

Brochure downloads

“We have not used a water blaster since the use of Cardox. We now have about 30 fittings on the preheater tower at the locations where hard heavy build up forms. Our operators are impressed with the Cardox. This is due to its effectiveness at removing build up, it saves manual work and is safe to use.”

Golden Bay Cement Portland Works-New Zealand

“We have now installed all the Cardox Sockets with no disruption to production onto the preheater and we are pleased to report Cardox is working very effectively and everyone is very impressed with the performance and with the System.”

Union Cement Corporation- Davao Philippines

We have used the Cardox System twice since the training session. Once was an opportunity during a shut. The second time to break a ring. This shortened the Kiln down time by at least 3 days - Cardox has paid for itself already.”

Pulp Mil- Thailand

“Having used Cardox B37 shells for dislodging build-ups in chalk, oxide and clay hoppers for a number of years, nowadays, we use them to clear build- ups in our inlet area to cement kilns under hot conditions. Our operators service and refill the shells with no problems.”

Rugby Cement-UK

The Cardox System In Use