MaserCata Oy/Ltd presents a new technology for metal processing. Technology combines Magnetic – laser (Maser) technology into plasma arc with the ability to fully recover and process metals (cata), this is totally new way for metal processing allowing release of metals from metallic oxides largely without carbon. Carbon is needed only in small quantities to accelerate the reaction.
This results in huge reduction of carbon emissions and as magnetic properties of the plasma arc keep metals and gases in or close to the plasma arc – all emissions are controlled and processed effectively resulting to less overall emission volume. Special multipurpose functioning plasma arc allows energy savings.
With MaserCata technology metals are recovered from oxides with high recovery rate of 95-99.5% and maintained in molten state as metals for further processing.
Metals from the plasma arc technology processing are practically without defects and impurities, with fine forged like microstructure. Because of defect free dense metal out put it is in many cases possible to avoid additional heat treatments and use as cast material directly.
MaserCata Oy/Ltd has produced new materials that can be only be made with Mazanasu series of furnaces. Materials offer better strength and hardness, longer service life in abrasion and heat resistant applications. In corrosion resistant applications stainless steel can be replaced with less costly material.
New SCI© Super Cast Iron, series of materials offer better qualities, superior performance and savings in manufacturing process. The best properties of Iron and Steel in the same material – Super Cast Iron.

In 2026, we will begin designing a 200-ton SPAF furnace. It will feature many revolutionary patented modifications compared to standard EAF furnaces. It is a true “green hybrid,” capable of direct melting of any material with CO2 emissions of nearly 0%.
Masercata Oy’s revolutionary SPAF furnace requires more than half as much electricity per ton produced as hydrogen-based green steel production does. Both have equally low CO2 emissions. The total investment cost (for a completed plant) is many times lower than that of a hydrogen-based iron/steel smelting plant.
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SPAF also enables production of Super Cast Iron (SCI©) - an entirely new class of material combining the best properties of iron and steel in a single metal. SCI© offers superior strength, hardness, and resistance to abrasion, heat, and corrosion, and can be produced at low cost directly from mining waste. This opens significant new revenue opportunities for the acquirer.
Our SPAF furnace's Super Cast Iron® is a completely new metal on the market and very inexpensive to manufacture compared to Fe-Cr castings, but our SCI® withstands heavy wear for much longer. Our SPAF furnace can produce super cast iron with an HRC of 50–60, an HBW of over 600, and a tensile strength of 1200 MPa at a very low cost, from red mud or raw ore.
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Operating at temperatures exceeding 3000°C via its water-cooled arc furnace technology, the MasterCata SPAF is capable of processing titanium-bearing mineral sands — primarily ilmenite (FeTiO₃) — found on virtually every continent. At these extreme temperatures, the furnace smelts the sand and reduces the titanium oxide content, producing a high-grade titanium-rich slag that serves as a direct precursor to metallic titanium or high-purity TiO₂ — bypassing the energy-intensive and costly multi-step Kroll (titanium sponge) production process. This represents a decisive advantage in premium material markets.
Silicon, naturally present as silica (SiO₂) in the sand feedstock, is volatilised and separated during the same high-temperature smelting process. It can be captured from the furnace off-gas stream and recovered as amorphous silica or further refined into metallurgical-grade silicon — turning what would otherwise be a process waste into an additional high-value co-product.
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Masercata Oy's SPAF furnace EU and US patents have now been approved. We are still waitng for patent approval from Japan, Korea, Canada, Australia och South East Asia. For more information about the technology rights and patents for this furnace technology, please contact us.
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Masercata Oy’s SPAF furnace participated in a resource efficiency and circular economy competition in India and achieved first place as Crown Prince in the Technology Revolutionaries series, and won the “Technology Innovators” category. Masercata Oy’s Indian partner, Proman Infra, received the award in Delhi on April 21, 2026. The competition was international in scope and attracted a large number of major corporations as well.
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April 8–10, 2026 Scientists from IIT Madras observed melting operations.
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April 8, 2026 In India, metal-containing mining waste was melted down using Masercata’s superplasma furnace and used to produce supercast iron, from which extremely hard, wear-resistant components were cast, including the jaws of a rock crusher, and train wheels and more. In other words, truly green casting production.
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Event in India, December 2025. The technology rights and patents for this furnace technology are owned by MaserCata Oy/Ltd, Finland. Please see short video and images below:
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Here is a recent video of direct smelting of raw ore using our special plasma arc furnace (SPAF furnace) in India. This is not even ore concentrate, but ground raw ore; ore concentrate melts even better (faster). This was the first direct smelting of iron ore with an electric arc furnace in the world, and there were no problems! We get exactly what we want, different types of cast iron, low-carbon steel, etc., super cast iron, etc. No additional processing is required. This revolutionizes the entire global metal industry (at least the blast furnace industry). CO2 emissions are only 5% compared to blast furnaces (practically emission-free). It uses half as much electricity as blast furnace technology.
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MaserCata Oy/Ltd CEO Matti Hurtta visited the Presidential Palace on November 13, 2025, to meet with Alexander Stubb, President of the Republic of Finland. Photos for download or press 01 02 03
MaserCata Oy/Ltd delivered and installed a new pilot furnace in India in August 2025.
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Our pilot furnace will undergo a demonstration and testing run in Bangalore, India, in May 2025. You are invited to witness the innovation firsthand! Tests will be supervised and certified by the Indian Institute of Technology Madras (IITM), India’s premier technical institute.
Contact us for more infoOur team of highly skilled & experienced developers, works to improve the plasma arc furnace industry since 2018.
Contact us for more infoBRIEF ABOUT THE FURNACE AND TECHNOLOGY
Mazanasu furnace series is currently available in 0.5 to 3 tn capacities, for pilot projects; 15, 30, 100 and 200 tn furnaces are under planning. According to estimates we will be able to deliver a 200 tn furnace in 2029, its design will already start in 2026. Furnaces are tailor made for the application required. Different metals like iron, nickel, copper as well as ores and metal containing waste materials can be processed to required metal products. For example iron based industry can consider to use new type of raw materials; bauxite residue, ilmenite, iron ore, blast furnace sludge and dust, slag, mill scale – all these can be used to make: iron, steel or super cast iron SCI© It is notable that for example.
It is also possible to make different structure material: Bainite can be made without environmental harmful chemical treatments in simple processing – notable is that structure in 100% bainite, without the impurities when made classical methods. 100% Matrix and Perlite structures are also possible. Carbon, Phosphorus and Sulphur content can be reduced to 0.001% level directly in Mazanasu furnace.
Technology offered is totally new, this is world’s first direct reduction furnace. Iron recovery from raw materials is not based on carbon usage to bind with oxygen, but the metals are released from oxides directly. (small amounts of carbon is used to accelerate the process, accelerating the process and we like to call it intensifier). This competes with steel production with hydrogen technology (the only other technology not using carbon as principal process to remove oxygen from iron oxides as main process.) Hydrogen technology route requires 10 x more energy, and the green steel – is very much depending on how the electricity is produced. It must be also noted that hydrogen plant must be build, as well as the extra power supply capacity. Mazanasu technology is using less electricity than normal furnaces. (In case of mill scale – if it contains oil – oil can replace part of the carbon required.)
To demonstrate the effect for the emissions, when processing 1 ton of steel and iron scrap in classical EAF, typically 62 kg CO2 is put out in furnace process, Mazanasu SPAF releases 1.38 kg. Classical EAF “loses” 15 kg iron in form of Fe2O3 with smoke, Masanasu SPAF “loses” 16 grams only. Mazanasu technology is the most cost effective way to make “green steel”.
Also attached an article of slag working as carbon trap – interesting possibility to use slag in two stages first as carbon trap – then process it further usage (where carbon is not released).
This technology opens also an option to use alternative raw material sources, like red mud and ilmenite – this can be a good option if proposed restrictions or tariffs for US and EU scrap exports come to affect.
Lot of time there is no point of recycle waste or bi-products, because of the high cost. We can change that!
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Contact Us TodayWe have been in product development since 2018, and aiming to do what others can't. Efficient energy transfer with lower power consumption.
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