Pulley sizes for a DIY Hookah .
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Thread: Pulley sizes for a DIY Hookah .

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  1. #1
    us
    May 2019
    The Real Northern Calif.
    43
    85 times
    Prospecting

    Pulley sizes for a DIY Hookah .

    I am planning on putting together an electric driven Hookah breathing air system . I have a Standard T-80 compressor off of a Keene 4" .
    I have a 1-1/2 H.P. electric motor that I want to couple it to .

    The the engine on the Keene 4" ran at a rated 3600 RPMS

    The Electric motor that I have runs at 1750 RPMs.
    The T-80 has a recommended RPM of 1800.

    If I use the standard 6" pulley on the compressor, what size would I have to use on the electric motor ?

    I know that it will have to be larger than the one that is used on the old dredge gas motor. I am just not sure how to calculate this.

    I KNOW that there are some Fart Smellers ....... I mean, Smart Fellers here so that is why I am asking ; )

    Wiggler
    Last edited by Wiggler; May 18, 2020 at 02:29 PM.
    "The Government is expanding to meet the needs of the expanding Government"

  2. #2
    us
    May 2019
    The Real Northern Calif.
    43
    85 times
    Prospecting
    Quote Originally Posted by Wiggler View Post
    I am planning on putting together an electric driven Hookah breathing air system . I have a Standard T-80 compressor off of a Keene 4" .
    I have a 1-1/2 H.P. electric motor that I want to couple it to .

    The the engine on the Keene 4" ran at a rated 3600 RPMS

    The Electric motor that I have runs at 1750 RPMs.
    The T-80 has a recommended RPM of 1800.

    If I use the standard 6" pulley on the compressor, what size would I have to use on the electric motor ?

    I know that it will have to be larger than the one that is used on the old dredge gas motor. I am just not sure how to calculate this.

    I KNOW that there are some Fart Smellers ....... I mean, Smart Fellers here so that is why I am asking ; )

    Wiggler
    After just a LITTLE BIT of chin scratching......I may have answered my own question . I realized that the motor has 1750 rpm........the T80 wants 1800 . ..... so a one to one ratio pulley system ( 6" on both ) should work fine. Guess Im a fart smeller too ??

    So I guess what I'm sayin' …… I was just being silly and not thinking very hard ; )
    Last edited by Wiggler; May 18, 2020 at 07:37 PM.
    et1955 and brianc053 like this.
    "The Government is expanding to meet the needs of the expanding Government"

  3. #3
    Charter Member
    us
    Look at the Historical Gold Mining photo albums on my page

    Jan 2013
    Huntington, Or./ Stanton, AZ/ former Outlaw California Gold Dredger
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    Yes, but 6" pulleys might be to big and you don't need them on a 1 to 1 ratio. Go 3" or 4" pulleys max. Check your clearances then choose. You could go with twin 2" also but it can be harder to unleash the belt... With a 4" you have enough room to slide a flat screw driver in and roll the belt on & off easily.
    Goodyguy, ratled, russau and 2 others like this.

  4. #4
    Charter Member
    us
    I can dig it! "WP"

    Mar 2007
    Arizona
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    Last edited by Goodyguy; May 18, 2020 at 08:23 PM.
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  5. #5
    us
    Aug 2004
    Olympia WA
    Minelab Xterra 70, Minelab SD 2200d, 2.5", 3", 4"and several Keene 5" production dredges, Knelson Centrifuge, Gold screw automatic panner
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    Dredge motors have a max RPM of about 3600 but you rarely run them at full throttle, usually half or less. You can run a 6" pulley on the motor and the T-80 will run near max capacity all the time causing it to run hotter and wear out sooner. You could put an adjustable sheave pulley on the electric motor and adjust the final RPM of the pump as needed but I dont think I would worry too much about it

  6. #6
    us
    May 2019
    The Real Northern Calif.
    43
    85 times
    Prospecting
    Quote Originally Posted by Goodyguy View Post
    Thank you for that . It will come in handy !
    Goodyguy likes this.
    "The Government is expanding to meet the needs of the expanding Government"

  7. #7
    us
    May 2019
    The Real Northern Calif.
    43
    85 times
    Prospecting
    Quote Originally Posted by Bonaro View Post
    Dredge motors have a max RPM of about 3600 but you rarely run them at full throttle, usually half or less. You can run a 6" pulley on the motor and the T-80 will run near max capacity all the time causing it to run hotter and wear out sooner. You could put an adjustable sheave pulley on the electric motor and adjust the final RPM of the pump as needed but I dont think I would worry too much about it
    Good point . Using the pulley calculator , I think I will choose to run a 4 inch motor pulley . This will give me an 1150 RPM compressor RPM . NOT running max rpm makes good sense .
    "The Government is expanding to meet the needs of the expanding Government"

  8. #8
    Charter Member
    us
    Look at the Historical Gold Mining photo albums on my page

    Jan 2013
    Huntington, Or./ Stanton, AZ/ former Outlaw California Gold Dredger
    Tesoro Vaquero, Whites MXT, Vsat, GMT, 5900Di Pro, Minelab GPX 5000, GPXtreme, 2200SD, Excalibur 1000!
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    Quote Originally Posted by Wiggler View Post
    Good point . Using the pulley calculator , I think I will choose to run a 4 inch motor pulley . This will give me an 1150 RPM compressor RPM . NOT running max rpm makes good sense .
    I've always had to run my T80's maxed out to get enough air, so go prepared...
    Wiggler and russau like this.

  9. #9
    us
    Period Six Mining and Exploration, LLC

    Aug 2010
    Southeast Arizona
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    1750 (motor speed) divided by 1800 (T80 speed) equals 0.972. Multiply motor pulley size by 0.972 for the T80 pulley size. Now remember this is at the pitch diameter of the pulley.

    So a 4" pulley times 0.972 equals 3.888 inches on the compressor pulley. 3.875 would be close enough.
    Wiggler, Reed Lukens and Bonaro like this.
    Mining is how I make my living. I turn mountains into dust on a daily basis.

 

 

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