Understanding the Reduction Ratio in Crushers

The reduction ratio in crushing is the ratio of the feed size to the product size during a crushing operation. It usually varies, but the reduction ratio depends on the chamber and nut adjustments. However, the best particle shape is found in material about the same size as the CSS, which is the smallest discharge opening dimens…

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Crushing 101 » Masaba, Inc.

JAW CRUSHER. 8:1 maximum reduction ratio for compression crushing, this is normally used as a primary crusher. Jaws perform well in many materials. Yields low wear cost per ton in hard abrasive deposits, minimal …

WhatsApp: +86 18221755073

Crushing 101 » Masaba, Inc.

JAW CRUSHER. 8:1 maximum reduction ratio for compression crushing, this is normally used as a primary crusher. Jaws perform well in many materials. Yields low wear cost per ton in hard abrasive deposits, minimal fines but produces little finished (under 1") product which places more load on the crushers downstream in the circuit.

WhatsApp: +86 18221755073

Reduction ratios in crushing

Jaw Crushers. Reduction ratio - 6:1. Jaw Crushers use pressure to break up very hard, flaky, and slabby rocks by passing them between a moving surface and a stationary one. They are generally used for primary crushing but also provide great results with secondary crushing.

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Rock Crushing Rule of Thumb

Impact crushers (rotary or hammer mills) have the capacity for high reduction ratios (up to 40:1), but are rarely applied to hard rock mines. Since they depend on high velocities for crushing, wear is greater than for jaw or gyratory crushers.

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How to Optimize Reduction Ratio in Jaw Crusher?

The reduction ratio is defined as the ratio of the feed size to the product size, and it can be optimized by selecting the appropriate jaw crusher model, adjusting the feed size and CSS, using the appropriate chamber design, controlling the operating speed, and performing regular maintenance.

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Tips to maximize crushing efficiency

Ideally, the reduction ratio of a jaw crusher should be 6-to-1. There are different ways to calculate reduction ratio, but the best way is something called the P80 factor. The reduction ratio is then calculated by comparing the input feed size passing 80 percent versus the discharge size that passes 80 percent.

WhatsApp: +86 18221755073

Reduction ratios in crushing

Jaw Crushers. Reduction ratio - 6:1. Jaw Crushers use pressure to break up very hard, flaky, and slabby rocks by passing them between a moving surface and a stationary one. They are generally used for primary crushing but also provide …

WhatsApp: +86 18221755073