How fine can a cone crusher crush materials?

The fineness to which a cone crusher can crush materials depends on several factors including the design and settings of the crusher as well as the type of material being crushed. Generally, cone crushers can produce material in sizes ranging from fine to medium.

Specific outputs include:

• Coarse Crushers (Primary and Secondary): These are generally used for initial reduction of hard and large materials. They can output materials with a particle size range typically from around 4 inches to several inches.
• Standard Cone Crushers: Typically produce a medium to coarse output, offering a reduction ratio between 4:1 to 6:1.
• Short Head Cone Crushers: These are designed to produce a finer product and usually have a reduction ratio of 4:1 to 6:1 or greater, producing finer materials, sometimes down to under 1/4 inch.

The final particle size is adjustable based on settings such as the close-side setting (CSS) which controls how fine the output material will be. The exact degree of fineness depends on the design of both the crusher and the particular requirements for the materials being processed. Additionally, factors such as hardness, moisture content, and abrasiveness of the feed material can also impact the fineness of the final output.

To achieve optimal fineness, it's important to properly configure and maintain the cone crusher, and to select the appropriate crusher model for the intended application.