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For Don:I have this equipment running for 10years. I donot need 360 degree but atleast 270 deg. This we we can insure that there are no parts left inside. I just need to order few more.so I am looking for best possible way to design the same thing. I need to know what are the different...

WE cannot use your formula in this case because the load is not offset by 19".The center of gravity and the center of rotation are almost same. It may be only 1" to 2" out. So 4000 x 2" = 8000 in-lb or 666lb-ft. I donot think we can ignore the inertia in this case.If the weight of the basket...

Let me ask this: if we have a worm gear box and a motor with 2hp attached to it how much hp and torque we loose from the motor to the gearbox motor due to the effeciency of the gearbox? The question I am trying to get an answer is how do you calculate torque. Please read this thread and answer...

Currently we are using 10KW for a larger tank to maintain temperature between 50 and 60 celsius? There are 2 element heaters 5KW each. 160KW sounds a lot practically! I think it is 1.6KW??????????

If in this tank,I dump a piece of steel for 10s how much heat it will take away from the water. Imagine the piece of steel is AISI 1010 and its weight is 1 pound. What will be the difference if I dump 50 such pieces for 10seconds?

OK! Thanks. Can we use some insulation materiald similar to what are in the dry walls etc?

Thank you very much. Actually i got the ratio from the sprocket teeth which are 72 and 16. I really appreciate it.

Please assume no insulation used. The outside temp is 25 degree celsius.

Sprocket will actually save us space because we donot have to mount the gearmotor axially. A 90 degree motor shaft motor can be bought and a sprocket ratio of 4.5:1 can be used. I will do this then as per your idea: Run the motor at 200rpm(AC drive), gear ratio =90:1 and sprocket ratio of...

The material used is 316 stainless steel. the wall thickness is 0.187". How do u calculate the heat losses from the surface and the wall? The container dimensions are 36" x 36" x 36". The water will be filled 5" below the surface.

I have found motors running 865rpm for a very good price($400). I want to use a 3phase motor because 3phase is easily avialable where this dumper is going. "I use the term to describe the range of adjustability, not the fixed ratio". I did not quite understand this- do you mean turndown ratio...

Thanks Bill. Should I still use chain and sprockets? What do u think about this? I may be able to use gearmotor with 90:1 ratio with a base 865 rpm motor whic will give me a turn down of 7.2 rpm and an 8:1 ratio on the sprocket which will give final rpm of 0.9rpm. I can use an AC drive to...

Stainless steel tank 27cu. feet volume, is filled with water. The top has a lid with a few small holes for the water vapours. Water has to be heated from 20 deg celsius to 95 deg celsius in 25 minutes(not critical). Once the water is hot, the water is pumped from the tank using a 2 gpm pump and...

The flat disc brakes are dumped. The inside dimensions of the cage are 38" high x 42" long. The parts basket which is placed inside is 34" high x 40" long. I am only giving two sides because the 3rd side is not important as it won't be used in the calculations. The basket has 4" high feet. The...

My question is the calculations shows that the HP required is so small. I can use a 1/4 hp motor for this application. The speed required is around 0.5 rpm. What is the best way to achieve it: Sprockets, worm gear, gearmotor ect?

Don: Is my torque calculations right? Assuming the basket is 34" high and 40" wide. Assume the mass of the full basket is 4000lb?

What kind of gearing does a gearmotor has?

Are u guys saying that if my max torque is 2 x 5252/865 = 12ft-lb, then the torque is same at 148rpm as well.

The rated full load current is 3.5amp and the voltage is 460V. We have used a step down tranformer from 575V to 460V. The torque required on the dumper is 16000in-lb. The motor is connected to a 60:1 worm gear and then 4.5:1 sprocket chain mechanism to the shaft which is rotating a cuboid...

Russell: How did you calculate the horsepower please? Don: I calculated the torque to be 16000in-lb by using the formula: Torque = mass moment of Inertia * ang. acceleration Inertia =1/12* mass* (sq. of a + sq. of b) where a and b are the sides of the basket. The I calculated Horsepower...