Today, the Shandong Shangkuang workshop is producing pulleys.
The workshop is currently operating in good order, and conveyor pulley production is proceeding smoothly and meticulously. As the primary transmission elements of conveyor equipment, their production process consists of closely interrelated operations. Each stage is reliably carried out under strict staff supervision, reflecting a pragmatic and meticulous approach to production.
Production begins with the preliminary processing of raw materials. Specialists select high-quality steel with excellent strength and toughness, manually selecting it to remove impurities and surface rust. The steel is then sent to specialized leveling equipment, where it undergoes multiple adjustments to ensure a straight axis and avoid deviations during subsequent processing. After leveling, the steel surface is successively ground, removing oxide layers and burrs, resulting in a smooth and even surface that lays a solid foundation for subsequent forming.
After raw material preparation is complete, the process moves on to forming the pipe body. According to technical specifications, skilled workers roll the steel and clamp it with specialized fixtures to ensure uniform roundness of the pipe body. After rolling, the joints are precisely aligned before welding. To prevent deformation caused by localized overheating, sectional welding is used. Slag deposits are immediately removed after each welding section, and the welds are inspected for uniformity and completeness. Any defects are immediately corrected to ensure the robustness of the pipe structure.
After welding and forming, production moves on to the assembly of the spindle heads. First, specialists clean the mating surfaces of the spindle heads and the pipe body of any remaining welding slag and oil, then evenly apply a special adhesive. The spindle heads are precisely positioned at both ends of the pipe body and clamped using fixtures. After the adhesive has initially cured, the bearings and seals are installed. Before installation, lubricating oil is applied to the bearings to ensure smooth rotation. The seals are carefully positioned in the gaps between the spindle heads and the pipe body and securely fastened, effectively blocking dust and moisture to extend service life.
Upon completion of assembly, the pulleys undergo surface treatment. The entire pulley is first degreased and derusted, impurities are removed using high-pressure spraying, and then phosphatized to improve coating adhesion. A wear-resistant and anti-corrosion coating is then uniformly applied by spray. The spray angle is constantly adjusted to ensure complete coverage and uniform thickness. After the coating has cured naturally, the surface is manually checked for smoothness, and excess particles are sanded with fine sandpaper for a neat appearance.
A final inspection is conducted according to strict standards. Quality inspectors first conduct a complete visual inspection, confirming the absence of weld defects, the integrity of the coating, and the absence of surface damage. They then rotate the pulley using a special tool to check for smooth rotation, no binding, or abnormal noise. At the same time, the strength of the connection between the spindle heads and the pipe body is checked for compliance with assembly standards. Only if all parameters are met does the pulley complete the current production process and proceed to subsequent operations.
