C74 – Civil

Concrete Demolition and Rock Excavation

Cardox is widely recognized as the most effective and reliable means of clearing build-ups and blockages…whether grain, flour, maize, soy, salt, sugar, DDG, cement, gypsum, coal, fertilizer, catalyst, ores, powders, etc. The powerful Cardox system provides the ultimate solution to clear even the most difficult of build-ups or blockages.

Cardox can be applied through small Sockets mounted onto the vessel wall or through inspection hatches around the silo or from access manhole on top of silo. Either way nobody need enter the vessel and Cardox tubes can be strategicaly placed to remove build-ups or blockages. Then discharged tubes can be removed and recharged for continued use. C74 Cardox tubes are tool of choice for bin, silo hopper and bunker application. Lower pressure, higher volume of instintaneous expanding directed pressure to clear build-ups & blockages.

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Overall Dimensions

C74 – Civil

Nominal Diameter 64 mm
2.5196 in
Length 1,093 mm
43.0313 in
Weight 16.82 kg
37.0817 lb
CO2 Charge 1.25 kg
2.557 lb
Rupture Pressure 8 tons/in²
12 tons/in²
1,260 kg/cm²
1,900 kg/cm²
Disc Thickness 3.2 mm
4.8 mm
0.1259 in
0.1849 in
Heater (Chemical Energizer) D120
Size of Drilling Bit 76 mm
2.9921 in

Technical Data

C74 – Civil

Additional Information

Far superior in cost and ease of use compared to expanding grout, mechanical removal equipment and other means of excavation.

When energized by the application of low voltage electrical charge, the chemical heater instantly converts the liquid carbon dioxide to gas. The electrical charge applied to the chemical heater and the expansion of liquid carbon dioxide into a gas all occurs within the Cardox tube. Subsequently, there is “no chance of sparks or creation of combustible set of events” in the environment in which the Cardox tube is placed. The conversion expands the liquid CO2 volume and builds up pressure inside the tube until it causes the rupture disk at the end of the tube to burst. This releases the CO2 – now 600 times its original volume – through a special discharge nozzle to create a powerful heaving directable force, at up to 40,000psi (3,000 bar).

This all takes milliseconds.

Carbon Dioxide is an inert gas that is commonly used in fire extinguishers, so it is “safe” to use without fear of generating secondary reaction with gases/dust within the silo/bin or bunker. In addition, the quick release of the gas refrigerates the discharge, and brings it to a temperature low enough to avoid ignition of air-gas-dust mixtures within the blocked vessel.

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Product Applications

C74 – Civil