Posted by Rachel | Posted in Coffee and Accessories | Posted on 05-12-2008
Tags: behmor, behmor 1600 drum coffee roaster, coffee, coffee roaster drum, coffee roaster drum homemade, drum, gene cafe drum coffee roaster, home coffee roaster drum, roaster, roasting
How do I figure out what size electric motor I need for a particular application?
I need to buy an ac electric motor to use on a coffee roaster on my grill, It needs to turn about a 10 pound drum on a rotissary at around 10 to 50 RPM.
I will proboly have to buy a higher speed motor with a gear reduction box, but I am not sure what size motor I will need.
Any suggestions?
The calculation are a little bit difficult and require a bit more information like required torque. Maybe we can get arround all that.
The simplest motor to use would be a single phase AC induction motor combined with a belt drive. For example the motor on my garage door is 1/2 horspower. That would be plenty for you. These motors typically run at 1750 RPM so you would have to gear it down maybe 50 to 1. It would be nice if you could get a motor with reduction gears on it (like a garage door motor). Even then you would have to use a belt/pully combination. You should be able to get these things at a big hardware store. Be sure to build it in such a way that nobody can get their fingers caught in the pully/belt. Also mak sure you mount the motor on something solid.
The above is just a guess. I’d have to see your specific setup to be sure. You may be able to use a 1/3 HP motor. One thing that worries me is the starting torque. AC induction motors don’t have a lot of power when they start. They make other motors such as split phase that start with more horse power.
Your application sounds more like the requirements for a small table saw motor. Maybe you could find one of those but you still need to bring the RPM way down.
coffee roasting drum
|
|
Nesco CR-1010-PRR Coffee Bean Roaster, 800 watt $189.99 The NESCO Pro Coffee Bean Roaster is a coffee enthusiast%27s dream%2C bringing the freshness and quality of roasting fresh gourmet coffee to your home%2E NESCO%27s Patented Catalytic Converter is the beginning of a new era in coffee history and a major step in the return of great tasting coffee to your home%2E%0D%0AOnce you%27ve experienced the flavor of fresh gourmet coffee roasted like this you%… |
|
|
Gene Cafe Drum Coffee Roaster brand new! $499.00 The Gene Cafe home coffee roaster offers a large capacity, intuitive, easy to use controls, and quiet operation. With complete control over both time and temperature that will please the most advanced home coffee roasting hobbiests, the controls and instructions are so easy that beginners can produce professional results the very first day. The clear roast chamber makes it very easy to view the ro… |
|
|
Hottop Kn-8828p-2 Digital Drum Coffee Roaster … |
|
|
Probat drum roasters consume 20% less energy.(Equipment & Packaging News): An article from: Tea & Coffee Trade Journal $9.95 This digital document is an article from Tea & Coffee Trade Journal, published by Lockwood Trade Journal Co., Inc. on February 1, 2009. The length of the article is 358 words. The page length shown above is based on a typical 300-word page. The article is delivered in HTML format and is available immediately after purchase. You can view it with any web browser.Citation DetailsTitle: Probat drum ro… |