If you prepare a formal specification, go out to tender, select the successful bidder who has offered to include the calculation with the contract documentation after receipt of the initial 40% down payment with your order....you might just be lucky.

Otherwise I don't think you have as much chance as England have of winning the next World Cup. ■

Request for free engineering AGAIN! ■

You might try:

"Weighing and Proportioning of Bulk Solids" (Hardcover)

by: Hendrik Colijn

CDN$ 563.92

LOW PRICE

Used - Very Good Seller: frobisherbooks

web: http://www.amazon.ca/gp/offer-listin...4/ref=dpolp2

Hardcover: 398 pages

Publisher: Trans Tech Publications; 2 Sub edition (February 1984)

Language: English

ISBN-10: 0872019144

ISBN-13: 978-0872019140 ■

Dear Sirs,

This forum is for exchange of views & experience. Not for money.

Regards.

A.Banerjee ■

Who is seeking money? Man requested information. Might be available in a book that will cost him to buy the book on Amazon. ■

Originally Posted by afsaneh782003

Hi, Dears

Can anyone tell me where I could find the detailed calculation to design a weigh feeder?

regards

Afsaneh

Its quite easy really its all to do with the tension you need in the weighfeeder belt that consists of:

1. The tension to overcome frictional resistance of empty belt and all moving parts turned by it.

2. The tension to move horizontal components of the material or load.

3. The tension to lift or lower the material or load (if weighfeeder is horizontal this is zero).

4. The tension to extract the material from the hopper.

5. The tension to overcome frictional resistance of any belt scrapers, skirt plates, belt ploughs and skirt seals.

The above will give a total tension required in the belt. Convert this to total torque, dependant on head pulley diameter.

I factorise this value by plus 1.4 to cater for losses.

Consider that more power will be required if the weighfeeder has to start up under full load conditions.

I have a spreadsheet that does all this for me.

Regards,

Ian Lee

LEEweigh

UK ■

Originally Posted by afsaneh782003

Hi, Dears

Can anyone tell me where I could find the detailed calculation to design a weigh feeder?

regards

Afsaneh

Dear Sir,

I can give you, but I am unable to attach the document. Tell me how to attach the same.

Regards.

A.Banerjee ■

Originally Posted by Roland Heilmann

Dear Mr. A. Banerjee,

pls. consider that the original thread has been written almost 7 years ago.

Attachments:

If you glance below the "Your message" field on the screen, the second header in additional options is "Attachments". Then follow instructions.

Regards

R.

Dear Mr. R. Heilmann,

I am sorry that I did not notice the date. But thanks for your help for attachment. I will try next time.

Regards.

A.Banerjee ■

Originally Posted by A.Banerjee

Dear Mr. R. Heilmann,

I am sorry that I did not notice the date. But thanks for your help for attachment. I will try next time.

Regards.

A.Banerjee

Dear Sir,

I want another little help in regard to start a new thread. Please guide me. I also attached one document. But result is not known to me.

Regards.

A.Banerjee

Attachments

guide to design long distance conveyor (DOC)

■