ROOTSâ„¢ 47 Universal RAI-J DSL Blower
Model: 47 URAI-J DSL
The ROOTS™ 47 Universal RAI-J™ DSL blower is designed for quieter, continuous-duty industrial airflow performance with capacities up to 523 CFM, pressures to 7 PSI, vacuum capability to 15″ Hg, and operating speeds reaching 3600 RPM. Part of the URAI-J™ DSL Frames 33J through 56J series, this heavy-duty rotary positive blower incorporates dual splash lubrication on both gear and drive ends, precision-machined cast iron involute impellers, carburized alloy steel timing gears, oversized anti-friction bearings, and ROOTS’ exclusive figure-eight gearbox technology to minimize vibration, reduce air pulsation, optimize lubrication flow, and extend bearing and gear service life.
Technical Details
ROOTSâ„¢ 47 Universal RAI-J DSL
Model: Roots Model 47 URAI-J-DSL
Flow Range: to 523 CFM
Max Δ Pressure: 7 psi
Max Δ Vacuum: 15″ Hg
Maximum RPM: 3600
Minimum RPM: 848
Max ΔT: 225˚F
Connection Size: 3″ FPT
Shaft Diameter: 0.875″
Drive End Lubrication: Oil
Gear End Lubrication: Oil
Required Oil Gear End Horizontal Unit: 14.5 ounces
Required Oil Drive End Horizontal Unit: 10.8 ounces
Required Oil Gear End Vertical Unit: 12.7 ounces
Required Oil Drive End Vertical Unit: 5.5 ounces
Unit Weight: 141 pounds (64.1 kg)
47 URAI-J DSL Blower Design & Construction Features
Lower air pulsation
Longer bearing life
Lower vibration
Lower operational noise
Rigid cast iron casing with computer-designed relief for noise suppression
Dual splash lubrication on gear and drive ends
Precision cast iron involute impellers
Carburized and ground alloy steel spur timing gears
Oversized anti-friction bearings
Cylindrical roller bearing for V-belt load resistance
Rugged detachable steel mounting feet
ROOTS exclusive figure-eight gearbox design
3/8″ oil level sight glasses for lubrication monitoring