How do the moving and fixed jaw plates work together to crush materials?
The jaw crusher, a critical piece of equipment in the coarse crushing stage of material processing, is widely used in industries such as mining and construction. Its core working principle relies on the coordinated action of a moving jaw plate (also known as the movable jaw liner) and a fixed jaw plate (the stationary jaw liner), which crushes materials by squeezing them within a V-shaped crushing chamber formed by the two high-manganese steel jaw plates.
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2025
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A Comprehensive Analysis of the Duma Machinery Casting Jaw Plate Production Process
As a professional jaw plate manufacturer, Duma Machinery boasts a mature technological system in the field of cast jaw plates. Below is a detailed process flow for jaw plates, covering key steps such as melting and heat treatment, ensuring the production of high-wear-resistant, high-strength, premium-quality cast jaw plates.
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2025
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Features and Detailed Classification of Rock Crusher Hammer Heads
The hammer head of a rock crusher, as the core wear part of the hammer-type crusher, is directly mounted on the equipment rotor and plays a critical role in impacting and breaking the material during operation. Depending on the characteristics of the material being crushed, crusher hammer heads exhibit diverse classifications, including forged crusher hammer heads, high-manganese steel crusher hammer heads, high-chromium composite plate hammers, and dual-hardness alloy steel hammers, among other types.
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2025
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In the crushing industry, facing the tough challenge of highly abrasive materials such as granite and iron ore, frequent replacement of wear-resistant components—and the associated high costs—have long been major headaches for mining and aggregate companies. Addressing this critical pain point, Metso wear parts produced by Duma Machinery have once again achieved a technological breakthrough, introducing a next-generation, high-performance solution that helps businesses overcome extreme wear challenges and significantly boost operational efficiency.
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2025
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High-performance HSI plate hammers, with optimized materials to handle diverse crushing conditions.
Duma Machinery specializes in manufacturing wear-resistant components for impact crushers. As an industry-leading HSI plate hammer manufacturer, we fully understand the unique material requirements of plate hammers under different operating conditions. In the research and development as well as production of HSI plate hammers, we primarily employ two high-performance material solutions, ensuring that every HSI plate hammer delivers exceptional crushing performance.
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2025
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Large rotary crusher mantle liners weighing over 15 tons are being machined.
This video showcases the precision machining process of the gyratory crusher's moving cone liner, custom-made by our company for an international client. As a wear component of the gyratory crusher, the durability and compatibility of the crusher liner directly influence the equipment's performance. To meet these critical demands, we employ high-precision machining techniques to join the upper and lower moving cone liners seamlessly, ensuring a perfectly fitted joint surface and smooth operation—thus satisfying the customer's stringent requirements for product strength and longevity.
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2025
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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.