How Pneumatic Conveyors Work

Pneumatic conveyors transfer materials through closed pipelines using the combination of pressure differential and airflow. RGS offers both vacuum and pressure-based systems to suit your specific requirements.

Transfer Technologies

Vacuum Dilute Phase

• Uses fans or side channel impellers for medium-range transport
• Material floats in air at speeds of 30-40 m/s
• Ideal for medium distances with excellent price-performance ratio
• Can serve multiple discharge points from a single source

High Vacuum Semi-Dense Phase

• Uses vacuum pumps for controlled product transfer
• Material travels at approximately 20 m/s
• Preserves product integrity – no de-mixing or lamination
• Ideal for pharmaceutical and food applications

Vacuum Dense Phase

• Ideal for fragile products, abrasives, and mixtures
• Material travels at slower speeds (2-5 m/s)
• Perfect for long distances and/or large volumes
• Prevents breakage and preserves product integrity

Operating Modes for Dense Phase Systems

Batch (Empty Pipe) Mode

• Non-continuous operation
• Material is pushed through empty pipeline
• Pipe and vessel empty after each cycle
• Suitable for short/medium distances (up to 50-60 meters)

Full Pipe Mode

• Material is pushed incrementally along the pipe
• Maintains very low material speed
• Ideal for long distances (beyond 100 meters)
• Perfect for fragile or abrasive materials

Continuous Full Pipe Mode

• Twin system with vessels working alternately
• Provides continuous material flow