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Roots · Roots RCS-J Whispair performance data

RCS-J 821J

Data coverage & sourcesCompare this modelAsk about this model
BlowersOil-freeOEM data
Roots RCS-J 821J

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

Blower flow
6,350 m³/h
Weight
816 kg

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 published2250 RPM, 4 PSI2250 RPM, 6 PSI2250 RPM, 8 PSI2250 RPM, 10 PSI2250 RPM, 12 PSI2250 RPM, 15 PSI1770 RPM, 4 PSI1770 RPM, 6 PSI1770 RPM, 8 PSI1770 RPM, 10 PSI1770 RPM, 12 PSI1770 RPM, 15 PSI880 RPM, 4 PSI880 RPM, 6 PSI880 RPM, 8 PSI880 RPM, 10 PSI2250 RPM, 16.0" HgV vacuum1770 RPM, 16.0" HgV vacuumthe pressure "Flow" is stated at (2250 RPM, 10 PSI)the pressure "Flow" is stated at (2250 RPM, 6 PSI)the pressure "Flow" is stated at (2250 RPM, 15 PSI)the pressure "Flow" is stated at (2250 RPM, 8 PSI)the pressure "Flow" is stated at (2250 RPM, 12 PSI)the pressure "Flow" is stated at (2250 RPM, 4 PSI)as printed: "Approx. net Wgt (lbs.)"
Flow
Blower flow
3740 CFM
oem source
Source · 2026-10-04
3635 CFM
oem source
Source · 2026-10-04
3546 CFM
oem source
Source · 2026-10-04
3468 CFM
oem source
Source · 2026-10-04
3398 CFM
oem source
Source · 2026-10-04
3302 CFM
oem source
Source · 2026-10-04
2842 CFM
oem source
Source · 2026-10-04
2738 CFM
oem source
Source · 2026-10-04
2648 CFM
oem source
Source · 2026-10-04
2571 CFM
oem source
Source · 2026-10-04
2500 CFM
oem source
Source · 2026-10-04
2405 CFM
oem source
Source · 2026-10-04
1179 CFM
oem source
Source · 2026-10-04
1074 CFM
oem source
Source · 2026-10-04
985 CFM
oem source
Source · 2026-10-04
Brake horsepower
Power consumption
92.3 BHP
oem source
Source · 2026-10-04
127.0 BHP
oem source
Source · 2026-10-04
163.0 BHP
oem source
Source · 2026-10-04
198.0 BHP
oem source
Source · 2026-10-04
233.0 BHP
oem source
Source · 2026-10-04
286.0 BHP
oem source
Source · 2026-10-04
65.7 BHP
oem source
Source · 2026-10-04
93.9 BHP
oem source
Source · 2026-10-04
122.1 BHP
oem source
Source · 2026-10-04
150.3 BHP
oem source
Source · 2026-10-04
178.4 BHP
oem source
Source · 2026-10-04
220.7 BHP
oem source
Source · 2026-10-04
29.6 BHP
oem source
Source · 2026-10-04
43.9 BHP
oem source
Source · 2026-10-04
58.1 BHP
oem source
Source · 2026-10-04
72.4 BHP
oem source
Source · 2026-10-04
Vacuum service inlet flow
Inlet flow (vacuum service)
3249 CFM
oem source
Source · 2026-10-04
2354 CFM
oem source
Source · 2026-10-04
Vacuum service brake horsepower
Brake power (vacuum service)
153.0 BHP
oem source
Source · 2026-10-04
114.8 BHP
oem source
Source · 2026-10-04
Reference working pressure
10 psi
oem source
Source · 2026-10-20
6 psi
oem source
Source · 2026-10-20
15 psi
oem source
Source · 2026-10-20
8 psi
oem source
Source · 2026-10-20
12 psi
oem source
Source · 2026-10-20
4 psi
oem source
Source · 2026-10-20
Weight
1800 lbs.
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: RCS-J 715J, RCS-J 721J, RCS-J 817J, RCS-J 826J, RCS-J 832J

Reviewed operating performance · 60 Hz

Loading reviewed performance…

Documents

Documents open on the manufacturer’s site.

Service parts

No parts published for this model.

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Not on file yet

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  • MissingA parts list for the RCS-J 821J

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Roots RCS-J 821J | Vac & Air