How to choose the crushing chamber type of cone crusher for medium and fine crushing of gold ore

After primary crushing, gold ore requires medium and fine crushing to achieve a feed size suitable for grinding (typically <12mm). The cone crusher’s chamber type – standard, short head, or super fine – directly affects product shape, liner wear, and energy efficiency. Understanding how to choose the crushing chamber type of cone crusher for medium and fine crushing of gold ore starts with your gold ore’s friability, moisture, and required P80. OCP Machinery, with four decades of expertise, offers three main chamber types: standard (for coarse crushing, parallel zone length 70-120mm), short head (for fine crushing, parallel zone 150-200mm), and extra-fine (for tertiary crushing, parallel zone >200mm). For most gold ores, a short head cone crusher with a steep crushing chamber provides the best combination of reduction ratio (4:1 to 6:1) and wear life. OCP’s engineers analyze your ore’s work index and abrasion index to recommend the optimal chamber profile, including closed side setting and eccentric throw. The correct chamber can increase throughput by 20% and reduce recirculating load by 15%.

In actual operation, the gold ore enters the cone crusher from the top and is progressively crushed as it moves down through the chamber. The mantle gyrates eccentrically, and the ore is compressed against the concave liners. OCP’s customized chamber design includes different liner profiles – coarse, medium, fine, or extra-fine – that can be changed depending on your target product. For a gold mine in Ghana with high quartz content, OCP recommended a short head chamber with a 12mm closed side setting, which reduced the ball mill feed size from 25mm to 10mm, lowering grinding energy by 30%. When deciding how to choose the crushing chamber type of cone crusher for medium and fine crushing of gold ore, consider the crusher’s power draw: a too-flat chamber causes packing, while a too-steep chamber produces slabby particles. OCP’s custom capability includes adjusting the mantle angle and concave ring design to match your exact gold ore liberation size. Our direct factory pricing means you pay 15-20% less than resellers, and we offer free simulation using DEM software. Environmental design features include labyrinth seals to prevent dust ingress and a water-cooling system for the lubrication unit.

OCP’s 40 years of experience has resulted in a proprietary “Gold Chamber” series that reduces over-crushing (which loses gold particles into fines). For a recent project in Nevada, USA, the customer switched from a standard chamber to OCP’s optimized short head chamber, increasing gold recovery in the subsequent leach circuit by 6%. We also provide retrofitting kits for existing cone crushers. To get professional advice on how to choose the crushing chamber type of cone crusher for medium and fine crushing of gold ore, send us a 5kg ore sample. OCP will conduct a crushability test and recommend the best chamber type at no cost. Click the online chat button now – our mining engineers are available 24/7 to discuss your application. Request a free specification sheet and a tailored quotation with direct factory pricing. Don’t leave gold in your tailings; let OCP optimize your crushing circuit today.

(The technical parameters and other data mentioned in this article will be updated as the product is upgraded. You can click on the website customer service to get the latest equipment parameter table.)