Cost Consideration of Material Selection for Accessories of High Hardness Ore Cone Crusher

Core conclusion: The cost consideration for selecting materials for high hardness ore cone crushers is centered on "optimal lifecycle cost", rather than simply pursuing low initial procurement prices. It is necessary to consider the three dimensions of procurement, maintenance, and production efficiency.

1. Initial procurement cost: Material determines price gradient

The procurement costs of different materials vary significantly, with a rough gradient of: ordinary high manganese steel<wear-resistant cast iron<composite materials (such as high manganese steel+alloy layer)<high-strength alloy steel (42CrMo, 35CrNiMo, etc.).

If low-priced ordinary materials are selected for the core load-bearing components (broken walls, eccentric shafts), although the initial investment is small, it is prone to increase costs due to wear/fracture in the future; Auxiliary components (protective plates, lining plates) can be made of medium priced wear-resistant cast iron while meeting the requirements for wear resistance, and the initial total investment can be controlled.

2. Hidden costs of replacement and maintenance: more critical than purchase price

The replacement frequency directly affects the cost: ordinary high manganese steel may only have a replacement cycle of 1-3 months in ores with Mohs grade 7 or above; Composite materials or high-strength alloy steel can be extended to 6-12 months, reducing the labor and accessory procurement costs caused by replacement frequency.

Shutdown losses cannot be ignored: High hardness ore crushing is mostly continuous production, and a one-day shutdown due to component failure may result in tens of thousands of yuan in production capacity loss. Durable materials can reduce downtime frequency and indirectly save hidden costs.

Maintenance difficulty associated with cost: Although some high-end composite materials have high procurement prices, they are easy to install and do not require special maintenance; Some low-priced materials may require frequent polishing and adjustment, increasing manual maintenance costs.

3. Production efficiency related costs: Material affects production capacity and revenue

Wear resistant materials can maintain stable crushing gaps, avoiding uneven particle size and reduced production capacity caused by accessory wear, indirectly improving unit time revenue.

High toughness materials can reduce the risk of component fracture when crushing large hard ores, avoid capacity interruption caused by equipment failure, and ensure the implementation of production plans.

4. Cost performance balance strategy: Do not blindly choose expensive, do not be greedy for cheap

Core components "prefer durable": For parts that directly withstand high impact and high grinding, such as crushing walls, rolling mill walls, eccentric shafts, etc., composite materials or high-strength alloy steel are preferred. Although the initial cost is 30% -50% higher, the service life is extended by 2-3 times and the full cycle cost is lower.

Auxiliary components "choose cost-effective options according to demand": non core load-bearing components such as protective plates and guide plates can be made of wear-resistant cast iron or mid end composite steel to control costs while meeting usage needs.

Avoid "excessive material selection": If the hardness of the ore is only 7-8 on the Mohs scale, there is no need to use top-level high-strength alloy steel. Composite wear-resistant materials can meet the demand and avoid waste caused by excessive material performance.