Rappers
A.V.C. Specialists, Inc. has been manufacturing the Model SR-A1 rapper since 1980. Thousands of these rappers are in operation around the world on all types of precipitators.

The SR-A1 can deliver multiple impacts at varying degrees of intensity. Being shaft-mounted, alignment is not an issue and thermal expansion problems are eliminated. The Model SR-A1 can operate in any position so the rappers can be installed on side-rapped precipitators and other challenging applications. Refer to Model SR-A1 Specifications for more information on this rapper. The Model SR-A1 is warranted for three years!

If you need to replace conventional gravity drop rappers with no modifications to the installation and you have been generally satisfied with the performance of your precipitator, the Model GR-P1 rapper is your choice. This rapper reliably lifts and drops the 20-lb. plunger for effective cleaning of your collecting plates.