Modern industrial enterprises - energy, metallurgy, mining industry, cement production and mineral processing - face extreme equipment operating conditions every day. High abrasiveness of transported materials, blows, vibrations, high temperatures and aggressive environments lead to rapid wear of pipelines, gutters and processing lines.
In such conditions, traditional metal pipes do not provide sufficient service life and require frequent replacement, which increases operating costs and equipment downtime. That is why more and more enterprises are switching to wear-resistant ceramic solutions, among which a special place is occupied isostatically pressed aluminum oxide pipes (ACT — Alumina Ceramic Tubes).
ACT pipes are high-density ceramic products, manufactured by isostatic pressing, with exceptional resistance to abrasive wear, erosion and mechanical stress. They are used in the most difficult conditions, where traditional materials fail.
Isostatically pressed aluminum oxide pipes are ceramic products, made from high purity aluminum oxide (Al₂O₃) by cold or hot isostatic pressing. This method allows you to obtain a homogeneous material structure without internal voids, microcracks and defects.
Unlike conventional molding, isostatic pressing ensures uniform pressure distribution in all directions, thanks to which it is achieved:
high material density;
minimum porosity;
uniform mechanical properties throughout the entire thickness;
increased wear resistance and durability.
ACT pipes are specially designed for transporting abrasive and corrosive materials under high load conditions.

Aluminum oxide with an Al₂O₃ content of ≥92–95% has a Mohs hardness of ≥9, what comes close to a diamond. This makes such pipes virtually invulnerable to abrasive wear from sand., slag, ash, coal dust, ore and other solids.
Density 3.6–3.7 g/cm³ provides high mechanical strength and resistance to shock loads, especially when transporting coarse and heavy materials.
Water absorption ≤0.02% prevents moisture from penetrating into the material, excluding structure destruction due to thermal changes and chemical exposure.
ACT pipes are acid resistant, alkalis, salts and aggressive gases, making them ideal for the chemical and metallurgical industries.
Compared with metal pipes, the service life of ceramic pipes can be 5–10 times longer, which significantly reduces the cost of maintenance and replacement of equipment.
Thanks to high dimensional and geometric accuracy, ACT pipes can be easily installed into existing piping systems using adhesive joints, flanges or mechanical fastenings.
| Parameter | ACT-92 | ACT-95 |
|---|---|---|
| Al₂O₃ content | ≥92% | ≥95% |
| Fe₂O₃ | ≤0,2% | ≤0,2% |
| Mohs hardness | ≥9 | ≥9 |
| Water absorption | ≤0,02% | ≤0,02% |
| Density | ≥3.60 g/cm³ | ≥3.70 g/cm³ |
| O.D (OF), mm | Inner diameter (ID), mm | Length, mm |
|---|---|---|
| 20 – 760 | 10 – 700 | to 600 |
It is possible to supply non-standard sizes according to individual customer drawings.
ACT pipes have the following design advantages:
high geometry accuracy;
minimal gaps when joining;
Possibility of producing complex shapes and bends;
excellent compatibility with metal and rubber elements;
high resistance to vibration loads.
transportation of coal dust;
ash removal;
pneumatic conveying systems;
boiler plant pipelines.
charge supply;
slag transportation;
ore and concentrate supply systems;
cooling and recirculation lines.
clinker transportation;
separators and classifiers;
cyclones and dust collectors;
cement powder supply lines.
transportation of ore and tailings;
slurry lines;
hydrotransport of abrasive suspensions.
crushing and screening complexes;
pneumatic transport;
abrasive supply lines.
| Material | Wear resistance | Service life | Cost of ownership |
|---|---|---|---|
| Steel | Low | Short | High |
| Rubber | Average | Average | Average |
| Basalt | Average | Average | Average |
| ACT ceramics | Very high | Very long | Low |
Although the initial cost of aluminum oxide pipes is higher, than metal analogues, their service life is 5–10 times longer. This significantly reduces:
frequency of production stops;
maintenance costs;
losses from downtime;
total operating costs (TCO).
ACT pipes:
do not emit harmful substances;
not subject to corrosion;
maintain stable properties at high temperatures;
ensure safe and environmentally friendly operation of equipment.
Isostatically pressed aluminum oxide pipes (ACT) - it's modern, a reliable and cost-effective solution for transporting abrasive and corrosive materials in the harshest industrial environments. Their high wear resistance, strength, durability and stability make them indispensable in the energy sector, metallurgy, mining and cement industry.
The use of ACT pipes can significantly increase the service life of equipment, reduce maintenance costs and improve overall production efficiency.
If you are looking for a reliable solution to protect your pipelines and increase productivity, ACT alumina pipes are your best choice..