Types and material selection of internal consumable linings of impact crushers

Types of impact crusher linings

1. Flat linings: Flat linings are the most common type and are suitable for crushing materials with medium hardness or less. They have a flat surface and are easy to replace, but they are less adaptable to hard materials.
2. Hammer linings: Hammer linings are usually used in hammer crushers, but some impact crushers also use hammer linings. This type of lining has high wear resistance and impact toughness and is suitable for crushing hard materials.
3. Crushing chamber lining: The crushing chamber lining covers the inner wall of the crushing chamber to protect the crushing chamber from wear. Depending on the nature of the crushed material and the type of crusher, the crushing chamber lining can be of different shapes and sizes.
4. Grading plate: The grading plate is used to control the particle size of the material after crushing. The opening size and shape of the grading plate can be adjusted as needed to meet different particle size requirements.
   Material selection of impact crusher lining
5. High manganese steel: High manganese steel is one of the most commonly used materials for impact crusher lining. It has high wear resistance and toughness, and is suitable for crushing materials below medium hardness. High manganese steel lining will form a hardened layer during use, thereby improving wear resistance.
6. High chromium cast iron: High chromium cast iron has high wear resistance and impact resistance, and is suitable for crushing hard materials. Its wear resistance is several times that of high manganese steel, but the price is relatively high.
7. Wear-resistant steel: Wear-resistant steel is an alloy steel with high strength and toughness. Wear-resistant steel lining is suitable for crushing materials below medium hardness, and its service life is long, but the price is high.
8. Composite material: Composite material lining is composed of a variety of materials and has high wear resistance and impact resistance. Composite material lining is suitable for crushing materials of various hardness, but the price is high.
9. Polyurethane: Polyurethane is a polymer material with high wear resistance and impact resistance. Polyurethane lining is suitable for crushing materials with medium hardness or below. It has a long service life, but the price is high.

The type and material selection of the built-in consumable lining of the impact crusher are crucial to the performance and service life of the crusher. When selecting the lining, the user should comprehensively consider the type and material of the lining according to the nature of the crushed material, the type of crusher and the conditions of use to achieve the best crushing effect and economic benefits.