Thread Number: 10923
Measuring Motor Speed and Sound Power Levels of Our Favorite Vacs |
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Post# 117967   12/13/2010 at 02:13 (4,853 days old) by KirbyClassicIII (Milwaukie, Oregon)   |   | |
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Hi,
Has anyone here ever talked about how fast (or slow) our favorite vacuums run at? For example, many Kirbys with the 10-blade metal fans draw about 10,500 RPM in carpet mode, and about 12,250 RPM in hose mode (single-speed motors). On 2-speed models (Dual Sanitronic 50 to Tradition), the hose mode speed is about 14,000 RPM. Royal's instruction manual for its commercial vacuum line actually lists the sound power level as being 95.2 dBa - this is actually as loud as a subway car traveling 35 MPH or a loader or backhoe, or even as loud as a power saw, drill or jackhammer. As with anything else with a loudness of at least 85 dBa, this means you won't want to hear it for too long w/o hearing protection. I am one of those people who have hypersensitive hearing, so I'd probably not want to listen to a Royal Everlast MRY8300 or similar models for too long. ~Ben |
Post# 117977 , Reply# 2   12/13/2010 at 09:34 (4,853 days old) by KirbyClassicIII (Milwaukie, Oregon)   |   | |
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I know many of you say the post-1995 Royal vacuums are screamers with their 8, 9 and 10-amp motors, this model 2075 being no exception to that rule.
Listen to it in person for more than one hour and you could lose your hearing. I'd much rather use an 880 any day over this one... ~Ben CLICK HERE TO GO TO KirbyClassicIII's LINK |
Post# 117992 , Reply# 3   12/13/2010 at 14:13 (4,853 days old) by akabent (LEFT Coast)   |   | |
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Just another reason old Electroli and Hoovers are still in regular use! I truly hate 'loud anything!' Rick |
Post# 118017 , Reply# 4   12/13/2010 at 17:21 (4,853 days old) by powertank ()   |   | |
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Arrgh! Who made that video? You don't wheel a Royal around like that. I'm so tired of fixing the problems related to people doing that. Certainly is a nice one though. |
Post# 118040 , Reply# 5   12/13/2010 at 20:18 (4,853 days old) by KirbyClassicIII (Milwaukie, Oregon)   |   | |
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I had him mentioned in the original subject drift of this YouTube find.
He also has a 1988 Royal 884 (the medium blue one, which is similar to the prior 880 in all but model #), but its present fan is a 9-bladed one, too (judging by its sound - the 9-blade fan didn't show up until 1989, when it was initially used on the 8000 and 9700, in which there were decals advertising "MCP Special - More Cleaning Power"). ~Ben |
Post# 118088 , Reply# 6   12/14/2010 at 05:16 (4,852 days old) by tolivac (Greenville,NC)   |   | |
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The Red Commercial Oreck the janitors use in my workplace make ANY Royal sound Quiet-the Oreck beast lets out a BANSHEE scream you wouldn't beleive!Since that Oreck has digested some screws-its LOUDER-the fan is probably cracked or broken. |
Post# 119731 , Reply# 7   12/31/2010 at 06:34 (4,835 days old) by 2011hoover700 (owosso michigan)   |   | |
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Post# 120247 , Reply# 13   1/5/2011 at 09:49 (4,830 days old) by aeoliandave (Stratford Ontario Canada)   |   | |
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Pete, yer a star!
Yup, that would be the fabled Canadian Electrolux 89. All the CanLux 80 series cylinders are this quiet and powerful pulling between 75 and 80 inches. Even the power nozzle hums with a soothing whirrrrr. The USA E, AE, G, etc (well-built and quiet as they are) are not as hushed nor do they pull as strong. This could be the motor used but... It's not simply the motor/fan unit - the heavy gauge metal shell, smoothly transitioned hose to inlet and exhaust diameters through the center of the cordwinder drum, the full size after-filter, the blended interior volume shapes and the bolted rubber collar donut ring supporting the motor all tame the whistle and whoosh of the airflow and contribute to the tranquility. By sheer luck of design styling or acute aeronautical engineering (or both), Electrolux of Canada just got it right in 1957. Dave |
Post# 120311 , Reply# 15   1/5/2011 at 22:11 (4,830 days old) by eurekaprince (Montreal, Canada)   |   | |
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According to the latest ratings by Consumer Reports, here are the vacs that rated only "fair" in noise level (all the rest were quieter):
Noisiest Bagged Uprights - The top-rated Hoover Self Propelled Windtunnel Anniversary The similar Hoover Turbopower version of the above Riccar Supralite and Simplicity Freedom Riccar Brilliance and Simplicity Synchrony Oreck Edge Dirt Devil Featherlite Aerus Freshera Cirrus Performance Bottom rated Koblenz U610 (Sanitaire copy) Noisiest Bagless Uprights: Bissel Powerclean and HealthyHome Germ Guardian Eureka Lightforce 300 Noisiest Bagged Canister: Metropolitan Professionals Noisiest Bagless Canisters: Dirt Devil Vision Dyson DC22 Turbinehead |
Post# 120314 , Reply# 16   1/5/2011 at 22:21 (4,830 days old) by vintagecanister ()   |   | |
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Does CR have a report on the quietest machines as well? |
Post# 120365 , Reply# 20   1/6/2011 at 08:00 (4,829 days old) by eurekaprince (Montreal, Canada)   |   | |
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Hi Steve,
Actually, Consumer Reports does not have special lists for most noisy and quietest. All I did was pull out (from the complete "tested" vac list) the vac models that scored poorly in the "noise" category. At some point in the next day or two, I'll post the group of vacs that scored very well. If I remember correctly, most of the Miele's (both uprights and canisters) do very well in the category of noise control. But so do some Kenmores and Panasonics. EP Brian |