High-hardness technical ceramics, sintered at high temperature, with extreme resistance to abrasive wear and chemical attack, engineered to protect and extend the service life of industrial machines and equipment.
Lined reducer · CT CEDUR
CETARCH designs and manufactures components in hard ceramic, sintered at high temperature, with high resistance to abrasion and chemical attack. Our parts line and protect machines and equipment where wear is constant, which reduces downtime, maintenance and total cost of operation.
Based in Criciúma, Santa Catarina (Brazil), we combine materials engineering, precision manufacturing and close technical support to deliver tailor-made solutions, from specification to installation.
Sintered at temperatures above 1,500 °C, our ceramic forms a dense, chemically stable microstructure. The result is a material that withstands what destroys steel: continuous abrasion, corrosion and heat.
Complete guide: what are technical ceramics →Near-diamond hardness (9 Mohs), often far above that of hardened steel. The surface virtually never wears.
Withstands continuous flow of slurries, powders and abrasive particles, and multiplies component life by up to 10× versus Ni-Hard.
Inert to aggressive acids, alkalis and solvents, with no corrosion and no contamination of the processed product.
Retains mechanical properties at high service temperatures, with no deformation or loss of structural integrity.
Parts ground to tight tolerances, which give a correct fit and predictable performance in every assembly.
Fewer stoppages, fewer replacements, less maintenance. Investing in ceramics pays off in uptime and productivity.
A smooth surface that cuts friction and material build-up, and improves flow and process efficiency.
Every solution starts from an analysis of the client's process (geometry, flow and wear) to define the ideal part.
We control the entire production chain: we make our own nanoparticles, design and build the kilns, mixers and mills, and develop the refractories. This full control guarantees purity, repeatability and the freedom to engineer custom formulations.
Dry-process production of alumina, zirconia, rare-earth and other oxide nanoparticles, contamination-free, and built into every one of our formulations.
Kilns, dryers and mills designed and built by CETARCH. Sintering up to 1750 °C, virtually free of glassy phase: maximum hardness and strength.
Pressing, extrusion and slip casting, plus plasma treatment and laser deposition to alter the properties of already-sintered parts.
From specification to finished part, a complete line of hard-ceramic components to line, channel and protect your systems.
Ceramic lining for cyclones and hydrocyclones, built to withstand the intense abrasion of particle separation.
Ceramic-lined pipes, elbows and flanges for pneumatic and hydraulic conveying of abrasive materials, with pipe and flange in matching sizes.
Solid-ceramic multi-outlet distributors with a round internal profile, no weak points at the joints and reinforcement where wear is worst.
Ceramic orifice plates and valves for precise flow and pressure control, with no erosion of the calibrated bore.
Ceramic bushings and sleeves for bearings, shafts and pumps. These are friction points that demand maximum wear resistance.
Slurry-pump casings and components lined in solid ceramic, which protects impellers and volutes against erosion.
Lined "T" and "Y" branches: rectangular box outside, round profile inside, with no weak points at the joints.
Lined butterfly valves, splitters and distributors, built to any size on demand (e.g. 14¨ inlet / 8¨ outlet).
Ceramic injector, rotary and curved valves for dosing and directing highly abrasive flows.
Ceramic grinding rollers and cylinders, plus insulating bases for electrostatic filters, with high hardness where wear never stops.
Ceramic reducers, apexes and cones that match the original equipment geometry, with no flow restriction or process change.
Have a specific wear point? We develop the ideal geometry for your process.
Talk to engineering →From CT CEDUR 90 to 99HH, formulations with rising alumina and nanoparticle content: hardness, density and chemical inertness tuned to your process. Rare-earth (TR) compositions on demand.
| Material | Al₂O₃ content | Density | Hardness HV | Flexural | Water abs. | Best for |
|---|---|---|---|---|---|---|
| CT CEDUR 90Standard · lining | 90% a 99,5% | 3,7 a 3,85 g/cm³ | > 1300 HV | 380 MPa | < 0,05% | High-hardness, chemical-attack lining |
| CT CEDUR 94HHHigh abrasion | 95,8-96,3% | 3,70-3,72 g/cm³ | 1450-1500 HV | 380 MPa | < 0,4% | Excellent abrasion resistance |
| CT CEDUR 96HHAbrasion + impact | 95,8-96,3% | 3,73-3,76 g/cm³ | 1500-1600 HV | 380 MPa | < 0,2% | Severe abrasion and impact |
| CT CEDUR 99HHHigh purity | 99,5-99,7% | 3,78-3,82 g/cm³ | 1550-1600 HV | 380 MPa | < 0,2% | Abrasion, impact, chemistry and thin/complex parts |
// Sintered > 1,650 °C, virtually free of glassy phase. Typical test values. Custom compositions available, including doped zirconia and rare earths.
Explore CT CEDUR alumina ceramics in detail →
We analyze the wear point, the processed material, the flow and the operating conditions.
We design the geometry and specify the ideal ceramic composition for the challenge.
Forming, high-temperature sintering and precision grinding of the parts.
Delivery, installation support and follow-up of field performance.
All of our technical ceramics are engineered and manufactured in-house at our facility in Criciúma, Santa Catarina, Brazil, firing up to 1,750 °C, serving both the Brazilian domestic market and exports to the Americas and Europe.
Ceramic plates and tiles can be chemically bonded using high-strength structural epoxy adhesives, or vulcanized into rubber backing plates (ceramic-rubber pads). For environments with severe vibration or high temperature, we use weld-on metal studs or bolts.
Yes. CETARCH designs and manufactures 100% custom-engineered ceramic parts based on your engineering drawings or field specifications, tailoring the CT CEDUR alumina formulation to match the exact wear profile of your equipment.