Centrally controlled vacuum conveying systems offer flexible solutions for both your simple requirements as well as more complex demands. colortronic single conveying units are designed for use in facilities where a centralised conveying system cannot be realised or is not desired. Rotary valves allow fully automatic material change, without any manual handling. colortronic dedusting modules remove fines from the material directly at the hopper loader, sending them via the air flow to the safety filter.