NAVCO Pneumatic Rappers for Electrostatic Precipitators

NAVCO Pneumatic Rappers for Electrostatic Precipitators

NAVCO Pneumatic Rappers for electrostatic precipitators set the industry standard for operational reliability, durability, and overall dependability with a field proven track record in all climate conditions. In difficult rapping applications, they are the rapper of choice – providing maximum performance for high-resistivity fly ash, salt cake, cement dust, and smelter furnaces.

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NAVCO Pneumatic Rappers are designed for dislodging dust or releasing particles collected in electrostatic precipitators. Their high reliability, high effectiveness, and low maintenance make them ideal for bag house shaker applications. In challenging applications, these repetitive-impact pneumatic vibrators offer more uniform and better electrode cleaning than single-impact rappers. And their simple, rugged construction makes them proven long haul performers.

Features & Benefits

  • Teflon-coated piston and bore reduces friction and resists corrosion
  • Single moving part promotes reliable performance
  • Suitable for vertical or horizontal applications
  • Particle agglomeration is enhanced by adjusting time between rapping
  • No irregular dust layer left on plates
  • Standard 3-degree, 30 metric tapers for interference fit on steel-to-steel or steel-to-ceramic shafting

Common Applications

  • High-resistivity fly ash in power generation
  • Salt cake in the paper industry
  • Cement dust for both dry and wet process kiln precipitators and lime-kiln precipitators
  • Smelter furnaces, BOFs, sinter plants, roasters, and other primary metal applications


  • Air lube and air lube models available
  • Operating pressure: 25 to 45 psi
  • Weight: 43 pounds
  • Average consumption: 1 to 2 acfm

There are numerous factors to consider when designing a flow aid system. Our representatives are ready to help you design the perfect flow aid system for your application: (800) 792-7427.