Capacity calculation for large iron ore jaw crusher at 300 tons per hour

Selecting a jaw crusher that reliably achieves 300 tons per hour in iron ore crushing requires accurate capacity calculations. The capacity calculation for large iron ore jaw crusher at 300 tons per hour involves multiple parameters: feed size distribution, ore bulk density (typically 2.2-2.8 t/m³ for iron ore), closed side setting (CSS), jaw plate profile, and eccentric speed. OCP Machinery, with 40 years of experience, uses the standard capacity formula: Q = K × L × CSS × ρ × N, where Q is capacity (t/h), L is crusher length (m), CSS in meters, ρ is density, N is rotor speed, and K is an empirical factor (usually 0.08-0.12 for iron ore). For a 300 t/h target, we typically recommend the OCP JC110 model (1100×850mm feed opening) with CSS set at 120mm, operated at 250 rpm, achieving a calculated capacity of 310-340 t/h. The capacity calculation for large iron ore jaw crusher at 300 tons per hour must also account for feed fines content – if more than 20% fines, the capacity decreases by about 10% due to packing.

In actual operation, the crusher receives iron ore from a vibrating feeder set to 250-300 t/h. The jaw crusher’s deep crushing chamber allows material to flow freely. OCP conducted a real-time validation at an iron ore mine in Hebei, China: using the JC110 with CSS 120mm and feeding 280 t/h of magnetite ore (density 2.6 t/m³), the actual throughput stabilized at 305 t/h, confirming the capacity calculation for large iron ore jaw crusher at 300 tons per hour. Factors that can reduce capacity include high moisture (>6%) causing sticky buildup, worn jaw plates reducing effective CSS, and uneven feeding. OCP’s custom capability includes modifying the jaw plate tooth profile – a coarse corrugated design increases capacity by 8-10% for coarse feeds. Our direct factory pricing ensures that the JC110 costs 15% less than comparable European or American brands, and we offer a free capacity guarantee: if the crusher does not meet the calculated capacity under specified conditions, we adjust or replace it at no cost. Environmentally, OCP’s jaw crushers feature dust seals and rubber dampers to reduce noise to under 85 dB.

OCP’s 40 years of experience has produced a proprietary “OCP-Calc” software that performs the capacity calculation for large iron ore jaw crusher at 300 tons per hour based on your specific ore properties. For a recent iron ore project in India, the customer had a variable feed size (400-800mm). OCP performed multiple calculations and recommended the JC125 with a hydraulic CSS adjustment system, achieving 330 t/h consistently. We also provide a complete spreadsheet tool that allows you to input your parameters and get an instant capacity estimate. To get an accurate capacity calculation for your iron ore jaw crusher at 300 tons per hour, contact OCP Machinery today. Send us your feed size distribution, ore density, and moisture content. Our engineers will run the calculation and provide a model recommendation within 4 hours. Click the online chat button – 24/7 support is ready. Request a direct factory quotation and ask about our capacity performance guarantee. Start crushing at 300 t/h with confidence.

(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.)