High-manganese steel, a traditional wear-resistant material, exhibits an austenitic microstructure during use. Under intense impact and compressive loads, the surface of high-manganese steel castings undergoes work hardening, increasing the hardness from its original value of approximately 200 HBS to over 500 HBW. Meanwhile, the core region of the casting retains excellent toughness.
10
2025
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02
In industries such as mining, construction, railways, and highways, crushers are core equipment, primarily used for crushing ores and rocks of medium to medium-to-hard hardness. The wear-resistant components of crushers—especially the mantle and bowl liners in cone crushers—play a decisive role in determining the efficiency of the crushing process.
08
2025
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02
What role does the toggle plate play in a jaw crusher?
The toggle plate of a jaw crusher may seem unassuming, yet it plays a critical role in the machine's operation. It not only serves as the "executor" of the crushing action but also acts as the "fuse" that safeguards the crusher's safety.
06
2025
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02
What are the wear-resistant components of a metal shredder called?
A metal shredder is an efficient crushing device, and its performance is closely tied to the quality of its key components. In particular, the durability and wear resistance of the shredder's wear parts—and how well they withstand daily use—directly influence the machine's operational efficiency and output. Today, we’ll take a detailed look at some of the primary wear components in metal shredders, along with their critical roles in ensuring optimal performance.
05
2025
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02
Cone Crusher: Key Parameters and Critical Maintenance Tips for Crusher Components
The cone crusher, with its robust design and wide range of applications, has become an indispensable piece of equipment in modern crushing operations. Understanding its key parameters—such as the crushing angle and reduction ratio—as well as recognizing the importance of regularly replacing crusher components, can help operators optimize equipment performance, extend its service life, and ultimately boost productivity.
03
2025
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02
How to adjust the gap of a cone crusher?
To adjust the crushing performance of a cone crusher, a key factor is regulating the gap between the cone crushing mantle (i.e., the moving cone) and the cone-shaped concave liner (i.e., the stationary cone). By raising or lowering the upper housing, this gap can be flexibly adjusted, allowing precise control over the particle size of the crushed material.
31
2025
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01
Duma Machinery's main products include: mantle and concave liners, crushing walls, and distribution plates for cone crushers; jaw plates, side guards, and pressure bars for jaw crushers; lining plates for ball mills, autogenous mills, and other equipment; impact crusher hammers and impact plates; as well as hammer heads, screen bars, liner blocks, and other wear-resistant alloy steel components for metal shredders.