Pneumatic Transport and Conveying - Carrying Velocities

Recommended air velocity for pneumatic transport of products like cement, coal, flour and more

The table below indicates recommended air carrying velocities in pneumatic solid transport systems.

ProductApproximately DensitySuction Pressure to PickupAir Carrying Velocity
(lb/ft3)
(in H2O)
(m/s)(ft/min)
Ashes, powdered clinker 30 - 43 6500 - 8500
Ashes from coal 30 3 28 5500
Beans 28 4 31 6000
Buffing dust 2.5 19 3700
Cement 100 5 30 - 46 6500 - 9000
Coal, powered 20 - 28 4000 - 5500
Coffee beans 15 - 20 3000 - 4000
Cork 14 1.5 17 - 28 3000 - 5500
Corn, wheat, rye 45 3.5 25 - 36 5500 - 7000
Cotton, dry 5 2 22 - 30 3500 - 6500
Flour 17 - 30 3500 - 6500
Grain dust 10 - 15 2000 - 3000
Grinding and foundry dust 30 2 17 - 23 3500 - 4500
Jute 22 - 30 4500 - 6500
Lead dust 20 - 30 4500 - 6500
Leather dust 8 - 12 1800 - 2500
Lime, hydrated 30 3 25 - 36 5500 - 7500
Limestone dust 10 - 15 2000 - 3500
Malt 35 3 24 4800
Metal dust 15 - 18 3500 - 4000
Metal turnings 2.5 20 4500
Mineral wool 12 2 22 3500
Oats 22 - 30 4500 - 6500
Paper cuttings 20 3 25 5000
Plastic molding powder 15 - 17 3000 - 3500
Plastic dust 10 - 12 2000 - 2500
Pulp chips 22 - 36 4500 - 7000
Rags, dry 30 2.5 20 - 33 4000 - 6500
Rubber dust 10 - 15 2000 - 3000
Salt 28 5500
Sand 30 - 46 6000 - 9000
Sandblast 17 - 23 3500 - 4500
Sawdust and shavings, light 12 2.5 10 - 17 2000 - 3500
Sawdust and shavings, heavy 17 - 23 3500 - 4500
Shavings, light 9 2.5 22 3500
Shavings, heavy 24 3 20 4000
Sugar 30 6000
Textile dust 10 - 15 2000 - 3500
Vegetable Pulp, dry 23 4500
Wood chips 20 - 25 4500 - 5500
Wool 22 - 30 4500 - 6000

Related Topics

  • Hydraulics and Pneumatics - Hydraulic and pneumatic systems - fluids, forces, pumps and pistons
  • Fluid Flow and Pressure Drop - Pipe lines - fluid flow and pressure loss - water, sewer, steel pipes, pvc pipes, copper tubes and more
  • Piping Systems - Dimensions of pipes and tubes, materials and capacities, pressure drop calculations and charts, insulation and heat loss diagrams

Related Documents

Tag Search

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