Production of Rotors for 2000 Ton Heavy Duty Ring Hammer Crushers Underway in Shandong Shankuang Workshop
2026/04/16 14:28
Inside the orderly workshop of Shandong Shankuang, the production of the rotor for the 2000-ton heavy-duty ring hammer crusher is progressing steadily as planned. As the core power component of the crusher, the rotor’s structural strength and operational stability directly determine the equipment’s crushing efficiency. Every procedure is carried out solidly under the strict control of the staff, fully reflecting the pragmatic style of precision manufacturing.
Production begins with the rigorous selection and pre-treatment of raw materials. The staff carefully selects high-quality alloy steel with ultra-high strength and toughness, and manually inspects each piece to eliminate blanks with surface rust, impurities or uneven material properties. Qualified raw materials are then sent to specialized quenching and tempering equipment. Through precise temperature-controlled treatment, the comprehensive mechanical properties of the material are enhanced to ensure it can withstand the continuous impact of heavy-duty crushing operations. After quenching and tempering, the raw materials undergo straightening to relieve internal stress. Special grinding tools are used to clean the surface section by section, removing oxide layers, burrs and tiny protrusions, resulting in a smooth and flat surface that lays a solid foundation for subsequent processing.
The processing of the core structure is particularly critical. Operators first perform precision cutting and forming of the rotor hub and web plates, cutting materials accurately according to the designed contours to ensure the dimensions of each component meet assembly requirements. Subsequently, the welding process begins, adopting high-strength welding technology for section-by-section welding. After each welding section, welding slag is promptly removed with tools, and professional testing methods are used to check for defects such as air holes and slag inclusions in the welds. Any problems found are repaired immediately to ensure a firm connection between the hub and web plates, with no weak points in the overall structure. After welding, the entire rotor undergoes stress relief annealing to further eliminate welding stress and prevent deformation during long-term operation.
The processing of shaft heads and assembly surfaces pursues extreme precision. Shaft components are precisely turned on a lathe, with operators focusing on controlling journal accuracy and step surface perpendicularity. During processing, special gauges are frequently used for rechecking to ensure the fit clearance with bearings meets standards. The ring hammer mounting holes on the rotor web plates are processed using CNC drilling equipment, ensuring precise alignment of hole positions. After drilling, the hole walls are carefully polished with files to remove burrs, followed by tapping treatment to ensure clear and regular threads, providing a reliable guarantee for the firm assembly of ring hammers.
The final inspection procedure is carried out with unwavering strictness. Quality inspectors first conduct a comprehensive appearance inspection of the rotor to confirm defect-free welds and no collision damage on the surface. Specialized equipment is then used to test the rotor’s radial runout and dynamic balance accuracy, as well as verify the firmness of the connection between the shaft heads and the hub. Finally, a simulated rotation test is performed to observe smooth operation and check for jamming or abnormal noise. Only when all indicators meet the rigorous requirements of heavy-duty crushing operations can the rotor complete the current production process.
In the workshop, staff perform their respective duties and cooperate tacitly, paying meticulous attention to every detail from raw material handling to finished product inspection. With solid craftsmanship and a rigorous attitude, they fully ensure the quality of the rotor, laying a core foundation for the efficient and stable operation of the 2000-ton heavy-duty ring hammer crusher.
