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Hopper Hammer™

Our AVC Specialist brand Hopper HammerTM is an easy-to-install device designed to deliver optimal performance and efficiency to dislodge particulates from precipitators, hoppers, bins and bunkers (an any other conveyor that tends to have material clog, stick and create stoppages).

The discrete, variable rate, with high accelerations caused by the Hopper HammerTM are an advantage over the continuous but lower accelerations that are produced by electric or pneumatic vibrators which can compact the materials and work harden the hopper surface, leading to cracking and failure.

The Hopper HammerTM is designed to easily mount, plug into a 120VAC outlet and run. Four switches control the impact, runtime, raps/second, and interval between rapping cycles. Once these are set, install the cap to seal the unit, and let it run!

Since most applications such as hopper cleaning, require that the rappers only run when the outlet valve is open and running, we have a Remote Enable input.



  • Low Total Cost of Ownership
  • Maximum operational performance
  • Keeps hoppers and bins clear



  • The Hopper HammerTM has two modes
    • Demand Mode: Impacts will be generated only when an external electric contact (relay, switch, push-button) is closed.
    • Recycle Mode: Impacts will be repeatedly generated.
  • Impact: 0-25 Ft-Lb
  • 1-9 Seconds run time
  • 3-27 minutes interval time
  • 1-5 Impacts per Second
  • 120 VAC, 60 Hz, Single Phase Standard
  • 220 VAC, 50 Hz, Single Phase optional
  • 10 Amps continuous, 15 Amp momentary
  • Weight: 53 pounds (24KG)
  • 35” Long with 6” x 6” mounting base (889mm, 152mm x 152mm)
  • Made in the USA


Hopper Hammer

Hopper Hammer

AVC Specialists Hopper Hammer Freq vs Vibrators.jpg

Hopper Hammer Vs Vibrator

AVC Specialists Hopper Hammer SRC Ctl Panel.jpg

Hopper Hammer Control Switches