A complete set of impact crusher wear parts solutions

Table of Contents

What are impact crusher wear parts?

Impact crusher wear parts are components designed to endure the abrasive and impact forces encountered in the crushing process of various materials in an impact crusher. These wear parts play a crucial role in maintaining the efficiency and functionality of the crusher.

These wear parts are also the main parts that need to be replaced frequently. Therefore, it is very important to choose the correct impact crusher wear parts.

Impact crusher wear parts include:

Blow bars. Impact crusher blow bars (also called hammers) are the main wear item of horizontal shaft impact crushers and a major cost driver. The purpose of blow bars is to strike material entering the crushing chamber and throw it against the impact wall causing the material to fracture into smaller particles. In the process of striking the material blow bars wear out and need to be replaced. They are made out of cast steel with various metallurgical ingredients optimized for a specific application.
Impact plates. An impact plate is one of the primary wearing parts of an impact crusher. The main function of an impact plate in an impact crusher is to bear the impact crushing of raw materials be shot from blow bar, and rebound the crushed raw materials back to the crushing area for second crushing.
Side Plates. Side plates are also called apron liners. These plates are typically made of high-strength steel and are replaceable to ensure the longevity of the rotor. Apron liners are also side plates that are located on the top of the crusher housing and are designed to protect the crusher from wear and tear caused by the material being crushed.

Impact crusher wear parts solution

Qiming Casting is a foundry in China specializing in the production of various mining machinery wear parts. For impact crusher wear parts, Qiming Casting can provide a complete set of impact crusher wear parts solutions based on the customer’s actual usage conditions.

Blow Bars Selection and Qiming Casting’s Suggestion

There are some kinds of materials for crusher blow bars and Qiming Casting’s material codes:

Qiming’s Code	Material	Basis Hardness	Wear Resistance	Application
200	Manganese steel	200-250HB	Relatively low	Large feed size low-abrasiveness stones. e.g. limestones.
200T	Manganese+Tic	200-250HB	Up to 100% increased on 200	Same as above but where longer wear life is required.
550	Martensitic Steel	500-550HB	Medium	Medium feed size of low to medium abrasiveness, such as Limestones, Asphalt, Concretes, Building rubbles with steel rebars or a small quantity of unbreakable objects.
550C	Martensitic Steel + Ceramic	500-550HB	Up to 100% increased on 550	Same as above but where longer wear life required.
650	High Chrome	600-650HB	High	Small feed size of medium to high abrasiveness but low strength, such as Limestones, Asphalt, Concretes, Building rubbles without steel rebars or unbreakable objects.
650C	High Chrome + Ceramic	600-650HB	Up to 100% increased on C650	Same as above but where longer wear life required.
650X	High Chrome + Ceramic	600-650HB	150% increased on C650	Small feed size of high abrasiveness and high strength materials, such as gravel, granites without unbreakable objects.

Information to be known for selecting blow bars

Materials* (must be known)	What material is crushed?
Feed size * (must be known)	How large is the feed material?
Abrasiveness	How hard is the feed materials?
Shape	Is the material cubic or plate-like?
Wear life	What blow bar is being currently used and how long does it last?
Wear problem	What wear problem is expected to be solved?

Side Liners and Impact Plates Solutions

Select the right side liners and impact plates for your plants. Qiming Casting’s solution:

Parts	Qiming’s Code	Material	Hardness	Application
Side liners	R50	Bimetallic	>700HB	High abrasiveness applications, Particularly at the rotor areas where the most abrasion happens.
Impact plates	200	Manganese Steel	200-250HB	Large feed size low abrasiveness stones
Impact plates	550	Martensitic steel	500-550HB	Large to medium feed size low abrasiveness
Impact plates	550C	Martensitic + Ceramic	500-550HB	Small to medium feed size high abrasiveness
Impact plates	650	High chrome	600-650HB	Small feed size high abrasiveness without unbreakable objects