Used NFK 4 + 1 dust collector.
* Four CS style filter sections each rated for 5,000 CFM
* A blank section
* The lower part of the NFK style with a drag chain
* Two S56-450 blower units, each rated up to 9,000 CFM
* Each blower equipped with a 20HP, 230 / 460V three-phase motor
* Depending on the configuration, the maximum usable CFM is 18,000