The hardness and strength of the crusher’s copper sleeves have the following important effects on equipment performance:

First，Influence on wear resistance

Hardness and wear resistance relationship:

Higher hardness usually means better wear resistance of copper sleeve. During the working process of the crusher, the copper sleeve is in constant contact and friction with the shaft and crushing parts. Copper sleeves with high hardness can resist the wear caused by this friction and reduce surface scratches, grooves and other wear phenomena.

For example, tin bronze copper sleeve usually has high hardness, in the process of crushing hard materials, can maintain a stable working condition for a long time, reduce the wear caused by the copper bushing size changes and performance decline.

On the contrary, the lower hardness of the copper sleeve is prone to rapid wear under the action of friction, resulting in increased clearance, affecting the precision and stability of the equipment, and may even lead to equipment failure.

Strength and wear resistance relationship:

Copper sleeves with higher strength are less prone to deformation and rupture when subjected to friction and impact, which can better maintain its surface integrity and improve wear resistance.

When the crusher handles high hardness materials, the copper sleeve will be subject to greater impact force and pressure. If the strength of the copper sleeve is insufficient, deformation and depression may occur, increasing wear. The copper sleeve with high strength can withstand these external forces and maintain a good working condition.

Second, the impact on the stability of equipment operation

The role of hardness on stability:

Appropriate hardness can ensure that the copper sleeve in the working process to maintain a stable shape and size. If the hardness of the copper sleeve is uneven or too low, it is easy to be deformed under the force, resulting in changes in the fit gap between the shaft and the copper sleeve, affecting the operating accuracy of the equipment.

For example, in a high-speed rotating crusher, the uneven hardness of the copper sleeve may cause vibration and noise, reducing the stability and reliability of the equipment. While uniform and moderate hardness of the copper sleeve can ensure the smooth operation of the shaft, reduce vibration and noise, and improve the operational stability of the equipment.

Strength contribution to stability:

High-strength copper sleeves are able to withstand the various stresses generated during crusher operation, such as tensile, compressive and shear stresses. This helps to maintain the structural integrity of the copper sleeve and prevent rupture and fracture due to insufficient strength, thus ensuring the stable operation of the equipment.

When the crusher works under heavy load or shock load, the copper sleeve with high strength can better cope with these extreme working conditions and reduce the probability of equipment failure. For example, in some large jaw crusher, the strength of the copper sleeve is directly related to the reliability and stability of the equipment.

Third, the impact on the life of the equipment

Hardness and life associated:

Copper sleeve with high hardness usually has a longer service life. Due to its good wear resistance, it can maintain good performance in a long period of time, reducing the frequency of copper sleeve replacement due to wear and tear.

For example, in a continuously operating crusher, a hardened sleeve can withstand long periods of friction and impact, extending the overall life of the equipment. A copper bushing with low hardness, on the other hand, may require frequent replacement, increasing equipment maintenance costs and downtime.

Strength and life relationship:

Copper bushings with high strength are able to withstand greater loads and stresses, reducing damage caused by lack of strength. This not only extends the life of the copper bushing itself, but also helps to increase the life of the entire crusher.

In harsh working environments, high strength copper sleeve can better protect the key components of the equipment and reduce the failure of other components caused by damage to the bushing, thus extending the overall life of the equipment. For example, in some mining crusher, high strength copper sleeve can continue to work under harsh working conditions, providing guarantee for the long-term stable operation of the equipment.