In an era where accuracy and efficiency define mineral processing performance, Multotec is advancing the science of separation through its high-efficiency spiral concentrators and cyclones. Leveraging its global expertise, spanning manufacturing, research, and field service operations in more than 100 countries, alongside two decades of experience in Canada, the company continues to strengthen its presence in the local mining sector. Its technologies are already delivering proven results in major coal operations and are equally well suited to achieving the same precision and recovery in iron ore processing applications.

Proven cyclone performance

Multotec’s dense medium and classification cyclones have delivered consistent separation efficiency across Canadian coal operations for the past 20 years. Engineered to perform reliably under the toughest conditions, these cyclones offer long wear lifespan and are simple to maintain, featuring fewer components and flexible configurations. This design aligns perfectly with the sector’s focus on operational efficiency and reduced total cost of ownership.

Niel Lourens, Vice President for Cyclones & Spirals at Multotec, says: “Our product specialists specify the ideal combination of pressure, cone angle, vortex finder, and spigot dimensions to achieve optimal separation efficiency and plant performance. In addition, our North American customers benefit from access to our technical expertise and an extensive selection of spare parts and accessories, ensuring they receive reliable support throughout the lifecycle of their equipment.”

To ensure long-term efficiency and reliability in harsh operating conditions, Multotec optimizes the materials used in its cyclone construction. By incorporating advanced wear-resistant materials, such as silicon carbide in place of traditional liners, the cyclones achieve extended service life, enhanced durability, and reduced maintenance costs and requirements, ultimately minimizing overall downtime.

Innovations in spiral separation

Complementing its cyclone technology, Multotec also offers a range of spiral concentrators that are designed to deliver precise, high-efficiency separation performance and mineral concentration across a range of commodities, including iron ore, coal, gold, copper, nickel, and zinc. The SX7 and MX7 coal spiral concentrator models incorporate two stages of spiraling into a single compact and modular spiral assembly, reducing plant height and floor space requirements.

Lourens says: “These spiral concentrators have proven themselves as highly efficient within the Canadian and USA coal sector, with Multotec having installed several of these units to date, achieving successful recovery results.”

To unlock additional value from existing resources, Multotec’s low cut density SX10 spiral is engineered to achieve a lower density cut point resulting in a lower ash product.

“With a lower cut density, the SX10 spirals are capable of producing a higher grade coal, which is especially important for Canadian coal plants producing higher specification export metallurgical coal,” Lourens adds.

Moreover, Multotec has developed the ultra-fine UX7 spiral, designed to recover heavy minerals with particle sizes of 100 microns and smaller. The UX7 is suitable for a wide range of applications, including iron ore, chrome, manganese, copper, platinum, and mineral sands.

Collaboration for continuous industry improvement

A key differentiator for Multotec in the region is its collaboration with universities and metallurgical research laboratories across North America. These partnerships focus on advancing separation science, optimizing mineral processing flowsheets and enhancing process control to drive greater operational efficiency.

Lourens says: “These research partnerships are essential to how the industry innovates, shares knowledge, and advances mineral processing solutions in line with the sector’s future needs.”

Looking ahead

As Canadian miners continue to seek solutions that balance productivity, efficiency, and environmental performance, Multotec’s spirals and cyclones are helping to drive that transition by combining its global knowledge with local expertise to enable smarter, more sustainable mineral processing.