In addition to the information required for constant depth zones, a second depth must be specified for compression and decompression zones. For a correct overview of the zone types of a screw, a compression zone MUST have a compression ratio CR of greater than 1 and a decompression zone a compression ratio CR of less than 1. The compression zone/decompression zone type can be easily changed in the input dialogue at the touch of a button.

Another special feature is that a constant pitch does not have to be used, but can be specified separately for the start and end of the zone. A continuous change in the aisle gradient is calculated over the entire length of the zone.

• Define screw data
• Define internally tempered screws
• General notes on defining the screw geometry
• Feed, Metering and Venting section
• Compression and Decompression section
• Barrier section
• Maillefer section
• Flight switch section
• Wave-Zone

• Maddok shearing section
• Spiral shearing section
• Toothed disc mixing section
• Faceted mixing section
• Cross-hole mixing section
• Cylindrical and conical shearing section
• Troester shearing section
• Cavity mixing section

• NRV - Cylindrical and conical NRV element
• NRV - Ring segment
• NRV - Pipe segment
• NRV - Annular non-return valve