Pin mixing tool

Pin mixing tool

Pin mixing tools generate intense powder agitation without active axial conveying. They effectively support build-up granulation. Pin mixing tools generate intense powder agitation without active axial conveying. They effectively support build-up granulation.

amixon® ring-layer mixing agglomerators are generally equipped with pin mixing tools. The pins are arranged at specific intervals on the mixing shaft. Their arrangement is designed so that the end faces of the pins sweep almost completely across the walls of the entire mixing chamber. This results in a comparatively large number of active pins.

During rotation, each pin transmits a strong impulse in the circumferential direction to the material being mixed. However, there is no targeted conveyance along the mixing path – i.e. from the inlet to the outlet. The axial movement of the product is caused exclusively by the gradient in the fill level within the mixing chamber.

The mixing shaft with pins operates at a relatively high speed. This results in intense, locally confined powder agitation. This promotes the formation of agglomerates, also known as granules. In this process, fine particles adhere in layers to existing nuclei and grow into stable agglomerates.