The MDP 4000 Pressure Concept Conveying System is a dense phase, low pressure, low to medium velocity, continuous conveying system where compressed air is readily available. It is used for conveying low or medium density, heat sensitive, non-abrasive and/or friable materials over shorter distances. Examples of materials that can be conveyed include plastic pellets, finished detergent powder, limestone, coffee beans, granulated sugar, ball clay, boric acid, finished breakfast cereals and pelletized carbon black.

Typical conveying line velocities are 1000 to 2000 feet per minute (5 m to 10 m/sec) and conveying pressure is up to 15 PSIG (1 barg).

This concept utilizes a high density feeder to feed the material into the conveying line and DC-5 Air Saver technology to minimize and optimize the high pressure air which is supplied by a high pressure - up to 100 PSIG (7 barg) - air compressor.