Best 72+ Cone Crushers of 2023

The Closed Side Setting (CSS) Range in cone crusher applications refers to the minimum and maximum distance between the concave and mantle surfaces of the crusher chamber. It directly affects the crushing efficiency and particle size distribution.

When the CSS is set to a smaller value, the crusher chamber becomes narrower, resulting in a finer product with a smaller particle size. This is desirable for applications requiring a higher degree of precision or specific particle sizes. However, a smaller CSS may decrease the throughput capacity and increase the wear on the crusher components.

Conversely, a larger CSS allows for a wider crusher chamber, leading to a coarser product with a larger particle size. This can be advantageous in certain applications where a coarser product is acceptable or when higher throughput is desired. However, a larger CSS might sacrifice some precision in particle size control.

Optimizing the CSS range involves finding the right balance between the desired particle size distribution, crushing efficiency, and throughput capacity. It is often determined through practical experience and can be influenced by factors such as the feed material characteristics, crusher design, and operating conditions.

The units mtph and stph, commonly used in cone crusher applications within the aggregate and mining industries, are measurements of the crusher's throughput capacity.

mtph stands for metric tonnes per hour, and it represents the amount of material that a cone crusher can process in metric tonnes within a one-hour time frame. For instance, a cone crusher with a throughput capacity of 200 mtph can process 200 metric tonnes of material in one hour.

On the other hand, stph stands for short tons per hour, which is the imperial counterpart to mtph. It measures the same concept but in short tons, which are commonly used in the United States. One short ton is equivalent to 0.907 metric tonnes.

These units, mtph and stph, are essential for understanding and comparing the capacity and productivity of cone crushers in the aggregate and mining industries. They help stakeholders gauge the crusher's ability to handle different material volumes and make informed decisions based on the desired production requirements.

The reduction ratio measures the extent to which a crusher can reduce the size of the feed material compared to the size of the crushed product, with a higher ratio indicating a more efficient crushing process for easier handling, transport, and further processing in the aggregate and mining industries. It is calculated by dividing the feed material size by the product size and can vary depending on factors such as initial size distribution and crusher design, often requiring multiple crushing stages to achieve the desired ratio.

In cone crushers, the stroke refers to the vertical movement of the crushing mantle relative to the concave. Three stroke options are commonly used: short stroke, medium stroke, and long stroke. A short stroke provides finer product size control, ideal for tertiary crushing, while a long stroke enables the crusher to process larger feed sizes and achieve higher throughput. The medium stroke strikes a balance between the two, offering a moderate product size distribution for secondary crushing applications.

The stroke directly impacts the crusher's capacity, power consumption, and particle shape. A longer stroke generally increases throughput but may consume more power. Conversely, a shorter stroke allows for precise control over the particle size but might sacrifice some capacity. The stroke options vary depending on the cone crusher model and manufacturer, and adjusting the stroke typically involves changing the eccentric throw. Selecting the appropriate stroke option involves considering factors such as desired product size range, feed size distribution, crusher design, and operating conditions.