Nederman MikroPul Quad Cyclone cleaning gas stream vented from a bauxite kiln Nederman MikroPul high efficiency cyclone Nederman MikroPul Cyclone and Nederman MikroPul pulse jet baghouse

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Nederman MikroPul High Efficiency Cyclones are the most cost-effective solution for separating dry particulate (5 microns or larger) from gas streams. With more than three decades of experience in research, design, and successful commissioning of cyclones, we have the expertise to select the appropriate design to meet the most demanding needs of any application in the industry.

Inertial separators are the simplest type of dust collector. They are normally used to reduce the volume of particles from the mass flow of an air stream or as a pre separator or pre filter for collectors handling greater efficiencies. Cyclone dust collectors (named for their vortex motion similar to that of cyclones and tornados) are large funnel shaped tubes. Dust and debris are pulled into the tangential inlet at high velocities, forcing material against the walls in a cyclonic motion. Larger particles slide down into the hopper while smaller or fine dust exits out the other side.

Further dust separation can be provided downstream with a fabric filter dust collector (right photo above shows a Nederman MikroPul pulse jet baghouse coupled with a Nederman MikroPul Cyclone). Separation efficiencies depend on the centrifugal force applied upon the dust (particles with larger mass being subject to greater force). Velocity, cyclone curvature profile, and the particulate mass combined with the time that the force is applied against the particles, characterizes performance. Cyclones are designed with either large or narrow diameters, depending upon the application. Small diameter cyclones have high dust collection efficiencies at low dust loads (0.1 to 6 grains per cubic foot) and high pressure drop of 6 to 10 inches w.c. (water column).

Large diameter cyclones can handle high dust loads (50-100 grains per cu.ft) with low pressure drops (1.5 to 3 inch w.c.) efficiently. Cyclones are not very efficient at low dust loads.

Based on careful evaluation of your Cyclone application, Nederman MikroPul will custom select:

  • Single, twin, or quad arrangement (leftmost photo above shows a Nederman MikroPul Quad Cyclone cleaning a gas stream, of 220,000 ACFM, vented from a bauxite kiln)
  • Outlet to inlet relationships
  • Barrel length
  • Cone length

Nederman MikroPul can also custom design the following enhancements as required:

  • Internal surface finishes to minimize abrasion
  • Build-up caused by sticky particulate
  • Ease of access
  • Body flanges
  • Wear liners, fixed or removable
  • Refractory lining for wear or high temperatures
  • ASME coded construction
  • Stainless steel or more exotic alloy construction



  • Powder coatings
  • Plastic Fines
  • Sawdust
  • Chip Collection
  • Iron and Steel
  • Sintering
  • Pelletizing
  • Sand Recovery

Mining and Industrial Steel

  • Crushing Plants
  • Dryers
  • Material Handling
  • Carbon Collection
  • Metal Powder
  • Potash

Consumer Goods

  • Tobacco
  • Coffee
  • Cereals
  • Soybean fines


  • Pulverized coal collection
  • Chalk
  • Coal Ash

Pneumatic Conveying

  • Product Receiving

Downloadable Documents

High Efficiency Cyclones