Unlocking the Power: Mastering Jaw Crusher Capacity Calculation


Zenith is a trust-worthy supplier of industrial crushing, powder grinding, mineral processing equipment, and other related devices. With years of experience in the industry, Zenith has become a professional mining equipment manufacturer around the world.

Breaking Down the Basics: Jaw Crusher Capacity Calculation:

The jaw crusher is one of the most commonly used primary crushers in the mining, quarrying, and construction industries. Its capacity, or the ability to crush material, is often cited as a key factor in determining its performance. The capacity of a jaw crusher is typically measured in tons per hour, which refers to the amount of material that can be crushed per hour.

To calculate the jaw crusher capacity, one must consider the type and hardness of the material being crushed, the size and structure of the crushing chamber, the final product size required, and the size distribution of the feed material. These factors play a crucial role in determining the capacity of the jaw crusher.

Unleashing the Potential: Key Factors in Mastering Crusher Capacity:

  1. Material properties: The type and hardness of the material being crushed have a significant impact on the jaw crusher’s capacity. Harder materials require more energy to crush, which may result in a lower capacity. Additionally, the moisture content of the material can affect its handling and crushing properties.

  2. Crushing chamber design: The size and structure of the crushing chamber also play a vital role in determining the crusher’s capacity. A larger and more spacious chamber allows for a higher throughput and better material flow, leading to a higher capacity. Conversely, a smaller chamber may restrict the flow of material and reduce the overall capacity.

  3. Feed size and distribution: The size of the feed material and its distribution can greatly impact the crusher’s capacity. Smaller-sized materials tend to pass through the crusher more easily, resulting in a higher capacity. On the other hand, larger-sized materials may require more energy to crush and can limit the crusher’s capacity.

Uncover the Formula: Pro Tips for Accurate Jaw Crusher Capacity Calculation:

To accurately calculate the jaw crusher’s capacity, one can follow these pro tips:

  1. Measure the feed opening width and height: The feed opening refers to the distance between the fixed and movable jaw plates. By measuring the width and height of the feed opening, one can determine the maximum feed size that the crusher can handle.

  2. Determine the closed-side setting (CSS): The CSS refers to the smallest distance between the concave and mantle of the crusher. It affects the final product size and, consequently, the crusher’s capacity. By adjusting the CSS, one can optimize the capacity of the jaw crusher.

  3. Consider the eccentricity and throw: The eccentricity and throw of the jaw crusher also impact its capacity. The eccentricity refers to the eccentric distance between the axis of the swing jaw and the axis of rotation. A larger eccentricity can result in a higher capacity. Similarly, the throw, or the vertical distance that the swing jaw travels, can also affect the crusher’s capacity.

Empowering Your Operation: Strategies to Maximize Crusher Capacity:

To maximize the capacity of a jaw crusher, one can implement the following strategies:

  1. Optimize the crusher’s operational parameters: Adjusting the crusher’s operational parameters, such as the CSS, eccentricity, and throw, can optimize its capacity. Regularly monitoring and adjusting these parameters can ensure that the crusher operates at its maximum capacity.

  2. Maintain proper feed and product distribution: Properly distributing the feed material and controlling the product size distribution can help maximize the crusher’s capacity. By ensuring a consistent and even flow of material into the crusher, one can prevent clogging and achieve a higher capacity.

  3. Regular maintenance and inspection: Regularly inspecting and maintaining the jaw crusher is essential for maximizing its capacity. This includes checking the wear parts, lubrication system, and overall condition of the crusher. By addressing any issues promptly, one can prevent breakdowns and ensure the crusher operates at its full capacity.


In conclusion, mastering jaw crusher capacity calculation is crucial for optimizing the performance of the crusher and maximizing its capacity. Factors such as material properties, crushing chamber design, and feed size and distribution play a significant role in determining the crusher’s capacity. By following pro tips for accurate calculation and implementing strategies to maximize capacity, one can unlock the full potential of a jaw crusher. With their expertise and reliable equipment, suppliers like Zenith can assist in achieving optimal crusher capacity for various applications in the mining, quarrying, and construction industries.

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