Guide to Closed Circuit Crushing with Screen 150 tph
For quarry and mining operations in South Africa and Brazil, using a closed circuit crushing system is a proven way to improve product consistency, reduce recirculating loads, and lower wear costs. This guide to closed circuit crushing with screen 150 tph explains how to set up a practical circuit – typically a cone crusher combined with a vibrating screen – to produce high‑quality aggregates or mill feed. By returning oversize material to the crusher, you ensure that 95‑100% of the final product meets your target size. OCP Mechanical Company supplies complete closed‑circuit plants with factory‑direct pricing and 24/7 online support.
Why Choose Closed Circuit for 150 tph?
A closed circuit is widely used when a precise product size is required, such as concrete aggregates (10‑20 mm, 5‑10 mm) or ball mill feed (10‑15 mm). In a guide to closed circuit crushing with screen 150 tph, the crusher operates in a loop with a screen: material is crushed, then screened; oversize returns to the crusher, while undersize becomes final product. This process maximizes crushing efficiency because the crusher only works on material that still needs reduction. Compared to an open circuit, a closed circuit can increase the proportion of on‑spec product by 15‑25% while reducing liner wear by up to 20%.
Note: Product data are constantly updated; for the latest specifications of closed‑circuit components, please contact our online customer service.
Many iron ore and aggregate producers in Minas Gerais and Mpumalanga have adopted closed circuits to meet stricter product specifications.
Typical Configuration for 150 tph
A standard guide to closed circuit crushing with screen 150 tph includes the following equipment:
Type C cone crusher (short head cavity) – 160‑200 kW, hydraulic CSS adjustment. For hard rock like granite or basalt, a CSS of 10‑16 mm is common.
Type S vibrating screen (single or double deck) – 1,800 x 5,000 mm or 1,800 x 6,000 mm, with 5‑15 mm apertures. The screen should be sized to handle the crusher’s output plus recirculating load (typically 1.5‑2 times the fresh feed rate).
Return conveyor – Moves screen oversize back to the crusher feed.
Feed hopper and belt feeder – For controlled material flow.
For a 150 tph line, the crusher discharge is screened at, say, 12 mm. Oversize (+12 mm) returns to the crusher, while undersize goes to final stockpile. This configuration typically produces 140‑160 tph of minus 12 mm product.
All capacity and price data in this article are for reference only; contact our team for a site‑specific design.
How to Optimize Your Closed Circuit
A successful guide to closed circuit crushing with screen 150 tph relies on proper tuning:
Screen aperture selection – Set the screen opening to 1.2‑1.5 times the desired product top size. For 15 mm product, use 18‑20 mm apertures.
Monitor recirculating load – A load of 150‑250% is acceptable. If it exceeds 300%, check screen efficiency or crusher settings.
Maintain choke‑fed crusher – Keep the feed hopper full to ensure consistent cavity filling.
Inspect screen media regularly – Blinded panels increase recirculating load and reduce net output.
OCP’s automation package can include belt scales and PLC controls to automatically adjust crusher CSS or feeder speed based on recirculating load.
Why OCP Is Your Partner for Closed Circuit Systems
Understanding this guide to closed circuit crushing with screen 150 tph helps you design an efficient plant. OCP Mechanical Company has over 40 years of history in crushing and screening equipment. We offer:
Free pre‑sale circuit simulation to confirm screen and crusher sizing.
Factory‑direct components (crushers, screens, conveyors) integrated into a single package.
24/7 online technical support for tuning and troubleshooting.
For a no‑obligation consultation and a customized guide to closed circuit crushing with screen 150 tph for your material, simply click the live chat icon on this page. Our online customer service team is available 24 hours a day, 7 days a week, to answer your technical questions, provide free recommendations, and help you design a high‑efficiency crushing circuit.
