Our company is a world leading supplier of high quality powders based on the metal tungsten. Our products are used in the manufacture of high-tech components in the tooling, automotive, aerospace, energy, infrastructure, electronics and mining industry. The raw materials for our complex production processes come from our own mine, concentrates globally sourced and the recycling of post-consumer products and secondary raw materials. Our company is a strategically important part of the global Sandvik Group.
Sustainability is part of every site
We’re continually investing to improve our recycling process. We’re also developing a circular supply chain and making the transition to sustainable energy. An integrated strategy of circularity, energy optimization and continued shift to non fossil fuel energy sources is our commitment.
Mittersill – from ore to concentrate
Mining and processing at Mittersill (state of Salzburg, Austria) represents the start of the production value chain of WOLFRAM. Scheelite ore is extracted in the state-of-the-art underground mine. The processing plant is located three kilometres down the valley at the Felbertauern Highway. Transport of the ore from the mine to the plant is done in an environmentally-friendly manner by means of a conveyor belt through a tunnel. The plant produces scheelite concentrate from the run-of-mine ore, covering an important part of the raw material requirement of WOLFRAM and ensuring our independence and the security of supply.
Mittersill is one of the most important tungsten mines in the world and works according to the highest safety and environmental standards immediately adjacent to the National Park “Hohe Tauern”.
St. Martin im Sulmtal – from raw material to powder
In the refinery operations in St. Martin im Sulmtal (state of Styria, Austria) we use scheelite concentrate from our own mine together with tungsten concentrates purchased from all over the world as a primary raw material. To preserve natural resources, we have extensive recycling facilities using secondary tungsten raw materials, and thus closing the material circle. In a first processing step tungsten is extracted from the raw materials into a solution, then cleaned and finally precipitated into a pure intermediate product, ammonium paratungstate (APT).
With our state-of-the art technologies we produce high-end tungsten oxide, tungsten metal and tungsten carbide powders for the powder metallurgical industry. These products meet the highest requirements of purity and reproducibility.
Chiplun, India – from valuable raw material to usable powder
Our recycling facility in India recycles tungsten carbide tools directly into usable powder. The valuable materials are processed in a furnace process, without chemical conversion, directly into a hard metal powder consisting of tungsten carbide and cobalt. This process retains all chemical elements in the product, making sorting important for quality.
Trust is good, control is better. Regular inspections ensure quality, which is why we voluntarily submit to them: