Recommended sand making machine models for fine crushing of lead-zinc ore

Lead-zinc ore beneficiation often requires fine crushing to liberate sulfide minerals before flotation. The recommended sand making machine models for fine crushing of lead-zinc ore are typically vertical shaft impact crushers (VSI) or high-efficiency fine crushers, which can produce a cubical product of 0-5mm with minimal over-grinding. OCP Machinery, with 40+ years of experience, offers three VSI models for lead-zinc applications: PLS-850 (100-150 t/h), PLS-1000 (180-250 t/h), and PLS-1250 (280-400 t/h). For smaller operations, OCP’s PCX series fine crusher (hammer type) provides a cost-effective option at 30-80 t/h. The recommended sand making machine models for fine crushing of lead-zinc ore should be selected based on ore hardness (lead-zinc typically 4-6 Mohs), feed size (preferably <40mm), and desired product P80 (usually 2-5mm). OCP’s VSI models feature “rock-on-rock” crushing for lower wear costs and “rock-on-iron” for higher reduction.

In actual operation, the sand making machine receives crushed lead-zinc ore from a tertiary cone crusher or screen undersize. The rotor throws the material against a crushing chamber or anvil. For a lead-zinc mine in Mexico processing 150 t/h, OCP recommended a PLS-850 VSI with a 200 kW motor. The machine produced a P80 of 3.5mm, increasing flotation recovery by 9%. The recommended sand making machine models for fine crushing of lead-zinc ore from OCP include customized rotor tips made of tungsten carbide for high abrasion resistance. OCP’s custom capability allows us to adjust rotor speed (1200-1800 rpm) and cascade air volume to control particle shape. Our direct factory pricing for VSI sand makers is 20-30% below European brands, and we offer a wear parts consumption guarantee (typically <0.5g per ton of processed ore). Environmentally, OCP’s VSI machines are fully sealed with dust collection ports and optional sound enclosures below 85 dBA.

OCP’s 40 years of experience includes over 300 sand making machines installed in lead-zinc mines globally. For a customer in Peru, the recommended sand making machine models for fine crushing of lead-zinc ore from OCP replaced a rod mill, reducing energy consumption by 40% and eliminating steel grinding media costs. To get the right sand making machine for your lead-zinc ore, send OCP your feed size distribution and target product specifications. Our engineers will recommend the optimal model and provide a capacity certificate. Click the online chat button for 24/7 support. Request a quotation with direct factory pricing, including a starter set of wear parts. Start producing better flotation feed with OCP’s advanced sand making technology.

(The technical parameters and pricing information mentioned in this article are subject to change as products are upgraded and are for reference only. Please contact customer service on the website for the latest equipment details.)