(or Batch vs. Continuous Processing!)
The Two Autocon Mixer Configurations: RAD and DID
The Right-Angle Discharge and the Direct Inline Discharge
The essential difference between the two configurations has to do with the manner in which the product is discharged: the RAD discharges at right-angles to the flow of material through the mixer; the DID discharges in the same direction as the flow of materials through the mixer. The RAD discharge is controlled by a sliding door, which, when closed, has the effect of creating a "congestion" zone insuring complete wet-up and dispersion of stubborn or difficult materials. Similarly, the DID Mixer may employ an adjustable choke device or valve at its discharge--to back up the material for more thorough mixing.
To accommodate the two discharge configurations, the RAD mixing head is mounted on a main-shaft supported from below, usually by a shaft-mounted reducer; the DID mixing head is mounted on a main shaft supported from above.
While there are a number of conditions or design factors which allow either the RAD or the DID Mixer to accommodate a great variety of solid/liquid formulas, it can be generally stated that heavy, difficult to wet-up product is best processed by the RAD and that lighter, higher volume product is best processed by the DID.)
Dry blending applications generally will require the Autocon DID mixer. However, the RAD mixer, while not attaining the higher through-put levels, is also an effective Dry Blender especially when extremely minor components are involved.BASIC AUTOCON RAD (Right Angle Discharge) Mixer