The XR Motorized Impeller is ideal for applications where space is limited. The device couples the motor and impeller to minimize space requirements and provide vibration-free operation. According to this company, by combining the efficiency of a backward-curved airfoil impeller with an external rotor motor, better air performance and sound levels are achieved. The impeller is suitable for either supply or exhaust applications and is completely speed controllable. Both motor and impeller are located directly in the air stream.
Continental Fan Manufacturing Inc., 203 Eggert Road, Buffalo, NY 14215, (800) 779-4021; fax (716) 842-0611;