At Mellott, we’re committed to delivering innovative solutions that help our customers move material more efficiently and cost-effectively. One of the most exciting developments in crushing and grinding technology in recent years is the Metso HRC8 High-Pressure Grinding Roll (HPGR)—a compact yet powerful machine designed to increase throughput and reduce operational costs across a variety of mineral processing applications.
What is the HRC8?
The Metso HRC8 is a smaller-scale HPGR unit engineered for aggregates, limestone, and industrial minerals. It brings the benefits of high-pressure grinding—once reserved for large-scale mining operations—to a
broader range of producers. With a throughput capacity ranging from 60 to 180 tph, the HRC8 is ideal for smaller operations or pilot testing.
But don’t let its size fool you—the HRC8 packs serious performance.
How Does the HPGR Work?
Unlike traditional grinding mills, HPGR technology uses two counter-rotating rolls that compress the feed material under high pressure. This causes micro-cracks in the ore particles, making them easier to process downstream, whether you’re feeding a ball mill, a flotation circuit, or a leaching system.
The result? Improved energy efficiency, better liberation of valuable minerals, and reduced wear and operating costs.
Key Advantages of the HRC8
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🔧 Skew Control Technology (SCT): Automatically adjusts roll alignment to protect against uncrushables and uneven feed conditions.
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⚙️ Compact Footprint: Small enough for easy integration into existing plants or pilot operations, yet robust enough for serious production.
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💡 Low Operating Costs: Reduced energy consumption and wear component longevity make this a cost-effective grinding solution.
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🧱 Versatility: Suitable for cement, limestone, slag, and a variety of other industrial and mineral applications.
Ideal Applications
The HRC8 is perfect for:
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Pre-grinding before a ball mill
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Re-crushing materials from secondary or tertiary stages
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Fine grinding of industrial minerals like limestone or phosphate
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Pilot-scale testing of HPGR technology before scaling up
Mellott + Metso: Your Equipment Partner
As a proud Metso distributor and service partner, Mellott offers full support for the HRC8, from consultation and equipment supply to installation and ongoing maintenance. Whether you’re exploring HPGR for the first time or integrating it into an existing circuit, our team is here to help design the right solution for your application.
Want to learn more about the Metso HRC8 and how it could fit into your operation?
Contact Mellott today to speak with an expert.
📞800-634-5634
📧 sales@mellotts.com
🌐 mellottcompany.com
