With a rugged construction that’s suitable for demanding applications, the R7 Series offers oil-less operation ensuring that the discharge air remains free of contamination. The R7 Series can be mounted in any plane, which provides flexibility when mounting or integrating the blower into an OEM system. In addition, these blowers have very few moving parts and no wearing components, which minimize downtime and helps to lessen operating noise levels.
UL and CSA certified TEFC motor
UL and CSA certified TEFC motors with permanently sealed ball bearings offer increased protection against weather, dirt, and moisture. Permanently sealed ball bearings incorporate polyurea grease, which extends bearing life and offers superior resistance to washout, rust, and corrosion.
Thermal over load protection protects motor windings from damage should the blower become stalled during operation. Additionally, thermal over load protection switches automatically reset when single-phase motor windings cool to a safe level of operation.
Cast iron blower housing and cover
Cast iron blower housing and cover make for a rugged construction.
Pilot duty overload protection
Motors are equipped with pilot duty thermal overload protection that when properly wired to a motor starter limits the motor winding temperature rise.
Corrosion resistant aluminum impeller promotes extended life.
Variable frequency drive (3 phase motors)
Models with 3 phase motors can be operated with a variable frequency drive for precise speed and flow control.
Explosion proof models (R7100R-50) have motors classified as Explosion Proof Division 1 and 2, which allows blower to be used in Group D explosive atmospheres. Additionally, these models have sealed air streams to prevent leakage of potentially hazardous gases from unit.