Jaw crusher liners are typically made of ZGMn13, a high-manganese steel known for its excellent wear resistance. Under impact, this material undergoes surface hardening, forming a tough and wear-resistant outer layer while maintaining the inner metal's inherent toughness. This combination makes it one of the most widely used wear-resistant materials in crushers. However, in recent years, high-chromium white cast iron has gained popularity as an alternative for jaw plates due to its significantly longer service life compared to traditional high-manganese steel.
In terms of wear resistance, high-chromium white cast iron outperforms other materials, ranking higher than hard nickel cast iron, low-alloy steel, and even high-manganese steel. This makes it a preferred choice for applications where durability is critical.
Another important factor in optimizing jaw crusher performance is the shape and size of the tooth plate. The cross-section of the lining can be either smooth or toothed. Toothed linings come in two forms: triangular and trapezoidal. In contrast, smooth linings have been shown to increase productivity by approximately 40% and extend service life by about 50% under similar conditions. However, they also lead to a 15% increase in crushing force, which may result in less control over the final particle size and a slight rise in power consumption.
Therefore, smooth linings are not ideal when the desired product particle size is relatively large or when dealing with layered materials. On the other hand, for extremely hard and corrosive materials, smooth linings can still be a suitable option to enhance the lifespan of the jaw plates. However, for applications requiring precise control over particle size and shape, triangular or trapezoidal linings are generally recommended.
If you're looking for more information on jaw crushers or related equipment like pressure ball machines, Shanghai Federer Machinery Co., Ltd. offers expert guidance and solutions. You can visit their official website by searching "Shanghai Federer Machinery Co., Ltd." on Baidu for detailed product specifications and support.
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