Hammer crushers are often subjected to high torque and vibration during operation, which can lead to frequent failures in the transmission system. Common issues include wear in the bearing chamber, bearing positions, pulley hubs, shafts, and keyways. These problems can significantly reduce the efficiency and lifespan of the equipment.
Traditionally, maintenance for these issues has involved repair welding or brush plating. However, both methods come with limitations. Repair welding introduces thermal stress that can damage the material, potentially causing warping or breaking of parts. Brush plating, on the other hand, is limited by coating thickness and may not adhere well over time, leading to peeling. Moreover, both techniques involve repairing metal with metal, creating a "hard-to-hard" contact that doesn't prevent future wear under continuous mechanical stress.
In contrast, advanced countries like those in Europe and the U.S. have adopted polymer composite materials for such repairs. One of the most widely used solutions is the 1st Line Technology product, known for its strong adhesion and excellent mechanical properties, including high compressive strength. This method allows for on-site repairs without the need for disassembly or machining, making it more efficient and cost-effective.
Unlike traditional methods, polymer composites don’t generate thermal stress during application and offer greater flexibility in repair thickness. They also provide better shock absorption and vibration damping, reducing the risk of re-wear. As a result, equipment components last longer, minimizing downtime and saving companies significant costs. This modern approach not only improves reliability but also brings substantial economic benefits, making it a preferred choice in industrial maintenance today.
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