What Is the Optimal Open Side Setting for Different Types of Jaw Crushers?

The optimal open side setting (OSS) for jaw crushers varies depending on the type of material being processed and the desired product size. Here are some general guidelines:

1. Primary Jaw Crushers:

- Typically set between 100 mm to 150 mm (4 to 6 inches) for coarse crushing applications.

- For harder materials, a tighter setting may be used to achieve a finer product.

2. Secondary Jaw Crushers:

- Usually set between 50 mm to 100 mm (2 to 4 inches) to produce a more refined product suitable for further processing.

3. Tertiary Jaw Crushers:

- Often set between 10 mm to 50 mm (0.4 to 2 inches) to achieve a specific size for final product specifications.

4. Recycling Applications:

- Settings may be adjusted based on the material being processed (e.g., concrete, asphalt). A typical OSS could range from 25 mm to 50 mm (1 to 2 inches).

5. Soft Materials:

- For softer materials like limestone or clay, a wider setting may be used to reduce wear on the crusher.

6. Hard Materials:

- For harder materials like granite or basalt, tighter settings are recommended to ensure effective crushing.

It's essential to consider factors like the hardness of the material, the desired product size, and the specific application when determining the optimal OSS. Regular monitoring and adjustments may be needed to maintain efficiency and product quality.