FAQ About Cone Crusher

1. What is the working principle of a cone crusher?

The eccentric sleeve is driven by the motor to rotate, driving the moving cone to swing periodically, and the material is crushed by squeezing, impacting, and bending between the moving cone and the fixed cone. The crushed material is discharged from the bottom discharge port.

2. What types of cone crushers are there? ​

• Spring cone crusher: Overload protection through spring, low cost, suitable for medium-hard materials.

• Hydraulic cone crusher (single cylinder/multi-cylinder): Hydraulic adjustment of discharge port and overload protection, high degree of automation, suitable for high-hardness materials (such as granite, basalt).

• Compound cone crusher: Combining spring and hydraulic technology to balance performance and price.

3. How to choose a suitable cone crusher? ​

• Material hardness: Choose the hydraulic type for high hardness, and spring type for medium and low hardness.

• Capacity demand: Choose a multi-cylinder hydraulic cone crusher for large production lines (with an output of more than 1,000 tons per hour).

• Finished product size: Short head type for fine crushing and standard type for medium crushing.

• Budget: The price of the hydraulic type is higher than that of the spring type, but the maintenance cost is lower.

4. Common faults and solutions of the cone crusher

• Problem 1: Abnormal equipment vibration

Cause: Unstable foundation, uneven wear of liner, too much feed.

Solution: Strengthen foundation, replace liner, adjust feed amount.

• Problem 2: Coarser discharge particle size

Cause: Wear of the liner, insufficient pressure of the hydraulic system.

Solution: Check the liner and replace it, and adjust the hydraulic cylinder pressure.

• Problem 3: Oil temperature is too high (＞60℃)

Cause: Oil circuit blockage, cooler failure, or oil quality deterioration.

Solution: Clean the oil circuit, replace the cooler or hydraulic oil.

5. What is the difference between a cone crusher, a jaw crusher, and an impact crusher?

• Jaw crusher: The first choice for coarse crushing, with a simple structure, but with an uneven particle size of the finished product.

• Impact crusher: It is suitable for medium and fine crushing of low-hardness materials, and the finished product has a good particle shape (more cubes).

• Cone crusher: Medium and fine crushing of high hardness materials, low energy consumption, but complex maintenance, slightly higher powder content in the finished product.