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Roots · Roots Universal RAI-J Whispair performance data

Universal RAI-J 45UJ

Data coverage & sourcesCompare this modelAsk about this model
BlowersOil-freeOEM data
Roots Universal RAI-J 45UJ

*Photo shows the Universal RAI-J Whispair series, not necessarily this exact model. Image: Roots

Blower flow
644 m³/h

Headline ratings converted to common units for comparison; the table below shows each figure exactly as published.

Technical data

Source: Roots product page · retrieved 2026-10-04
As published3550 RPM, 4 PSI3550 RPM, 5 PSI3550 RPM, 6 PSI3550 RPM, 7 PSI3550 RPM, 8PSI3550 RPM, 9 PSI3550 RPM, 10 PSI2950 RPM, 4 PSI2950 RPM, 5 PSI2950 RPM, 6 PSI2950 RPM, 7 PSI2950 RPM, 8PSI2950 RPM, 9 PSI2950 RPM, 10 PSI1750 RPM, 4 PSI1750 RPM, 5 PSI1750 RPM, 6 PSI1750 RPM, 7 PSI1750 RPM, 8PSI1750 RPM, 9 PSI1750 RPM, 10 PSI3550 RPM, 16" HgV vacuum2950 RPM, 16" HgV vacuum1750 RPM, 14" HgV vacuumthe pressure "Flow" is stated at (3550 RPM, 9 PSI)the pressure "Flow" is stated at (3550 RPM, 8PSI)the pressure "Flow" is stated at (3550 RPM, 7 PSI)the pressure "Flow" is stated at (3550 RPM, 10 PSI)the pressure "Flow" is stated at (3550 RPM, 5 PSI)the pressure "Flow" is stated at (3550 RPM, 6 PSI)the pressure "Flow" is stated at (3550 RPM, 4 PSI)as printed: "Weight"
Flow
Blower flow
379 CFM
oem source
Source · 2026-10-04
373 CFM
oem source
Source · 2026-10-04
368 CFM
oem source
Source · 2026-10-04
363 CFM
oem source
Source · 2026-10-04
358 CFM
oem source
Source · 2026-10-04
354 CFM
oem source
Source · 2026-10-04
349 CFM
oem source
Source · 2026-10-04
306 CFM
oem source
Source · 2026-10-04
300 CFM
oem source
Source · 2026-10-04
295 CFM
oem source
Source · 2026-10-04
290 CFM
oem source
Source · 2026-10-04
285 CFM
oem source
Source · 2026-10-04
281 CFM
oem source
Source · 2026-10-04
277 CFM
oem source
Source · 2026-10-04
161 CFM
oem source
Source · 2026-10-04
155 CFM
oem source
Source · 2026-10-04
150 CFM
oem source
Source · 2026-10-04
145 CFM
oem source
Source · 2026-10-04
140 CFM
oem source
Source · 2026-10-04
136 CFM
oem source
Source · 2026-10-04
132 CFM
oem source
Source · 2026-10-04
Brake horsepower
Power consumption
8.8 BHP
oem source
Source · 2026-10-04
10.6 BHP
oem source
Source · 2026-10-04
12.4 BHP
oem source
Source · 2026-10-04
14.3 BHP
oem source
Source · 2026-10-04
16.1 BHP
oem source
Source · 2026-10-04
17.9 BHP
oem source
Source · 2026-10-04
19.5 BHP
oem source
Source · 2026-10-04
7.0 BHP
oem source
Source · 2026-10-04
8.6 BHP
oem source
Source · 2026-10-04
10.1 BHP
oem source
Source · 2026-10-04
11.7 BHP
oem source
Source · 2026-10-04
13.2 BHP
oem source
Source · 2026-10-04
14.7 BHP
oem source
Source · 2026-10-04
16.0 BHP
oem source
Source · 2026-10-04
3.9 BHP
oem source
Source · 2026-10-04
4.8 BHP
oem source
Source · 2026-10-04
5.7 BHP
oem source
Source · 2026-10-04
6.6 BHP
oem source
Source · 2026-10-04
7.5 BHP
oem source
Source · 2026-10-04
8.4 BHP
oem source
Source · 2026-10-04
9.3 BHP
oem source
Source · 2026-10-04
Vacuum service inlet flow
Inlet flow (vacuum service)
326 CFM
oem source
Source · 2026-10-04
253 CFM
oem source
Source · 2026-10-04
121 CFM
oem source
Source · 2026-10-04
Vacuum service brake horsepower
Brake power (vacuum service)
15.2 BHP
oem source
Source · 2026-10-04
12.5 BHP
oem source
Source · 2026-10-04
6.4 BHP
oem source
Source · 2026-10-04
Reference working pressure
9 psi
oem source
Source · 2026-10-20
8 psi
oem source
Source · 2026-10-20
7 psi
oem source
Source · 2026-10-20
10 psi
oem source
Source · 2026-10-20
5 psi
oem source
Source · 2026-10-20
6 psi
oem source
Source · 2026-10-20
4 psi
oem source
Source · 2026-10-20
Weight
119
oem source
Source · 2026-10-20

Original extracted values are shown with their source and review status. Multiple values under the same condition remain separate for review.

Same family: Universal RAI-J 33UJ, Universal RAI-J 36UJ, Universal RAI-J 47UJ, Universal RAI-J 56UJ

Reviewed operating performance · 60 Hz

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Documents

Documents open on the manufacturer’s site.

Service parts

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