As core mineral processing and classification equipment, high weir single and double spiral classifiers both separate coarse and fine materials based on the particle sedimentation principle, suitable for coarse particle classification scenarios. However, due to structural differences, they each excel in production capacity, precision and applicable working conditions. Choosing the right equipment is the key to maximizing production efficiency.
The single spiral classifier features a single-shaft design with a compact tank and simple structure, enabling more convenient transmission and maintenance. It occupies a small area with low investment cost, making it ideal for small and medium-sized concentrators. Combined with a ball mill to form a closed-circuit grinding system, it easily meets regular classification needs with a low failure rate for worry-free operation.
The double spiral classifier is equipped with two parallel reverse spiral shafts, with a widened tank and larger sedimentation area, and its processing capacity is 1.5-2 times that of the single spiral classifier of the same specification. The dual-shaft cooperative stirring forms a stable flow field with higher classification precision, effectively reducing material entrainment and agglomeration. It is suitable for high-capacity, high-precision classification scenarios such as large mines and metallurgy, with more stable processing of high-concentration materials and more reliable continuous production.
Both are high weir classifiers: the single spiral classifier stands out for its economy, convenience and adaptability to small production capacity, while the double spiral classifier is superior in high efficiency, high precision and compatibility with large working conditions. Select the model on demand to make the classification operation more in line with actual production.
