Purchase a copy of the CEMA publication, Belt Conveyors for Bulk Materials

This is the basic handbook for the design of belt conveyors and can be purchased here -

http://www.cemanet.org/publications/index.html ■

Define adequate?

have you examined the motor plate ratings to see what the motor delivers and requires

for baseline readings?

Is the pulley lagging in good condition?

has the belt been physically examined to check for side shifting of the belt line?

Is the belt tracking and trained properly?

What is the take up position while at start up and under load?

If the take up is fully retracted you need to remove and splice belt

It is entirely possible the reduction unit is failing a bad coupler or have a bad set of contacts or circuit breaker or bad ground faults.

what about housekeeping? Are the tail pulley and area under the drive unit shoveled and cleared every day to remove any build up?

if you are not using an all weather cover you may have excess moisture affecting the traction of the belt and pulley lagging.

Has anyone taken the time to check the amperage draw of the motor while

at start up, running empty, running loaded, running while under a surge loading condition-meaning empty belt and sudden shock loading to transfer point tail pulley of the belt in question.

What about the belt timer has anyone checked to see if it is still operating properly and not work out?

Is it stressed under load with high surge loading times and volumes?

have you tried reducing the loading tonnage per hour? you may have more "fines"affecting amperage draw

(if your dumping to much at a transfer point a new motor will not solve that problem.

If the motor amperage is high the motor may be or is going bad.

Is the wiring to the motor adequate in gauge size?

If not no changing motors will help it.

Has anyone looked at the motor wiring splices to examine their condition?

Has the line drop loss been examined?

look for the "simple reasons" before you go any further;

What has changed since its installation?

Any reputable conveyor seller will tell you any over loaded belt will labor heavily until the circuit breaker or drive coupler fails. ■

Ten Key points that affect power in major way, besides what you offered:

1. belt speed

2. belt width,

3. idler roll spacing

4. idler roll diameter

5. idler roll bearing size and seal type

6. material properties - density, lump size, moisture

7. direct drive or soft-start?

8. sufficient belt tension to control belt sag below 1.5%.

9. assuming you have common sense and good house keeping

10. Chutes and skirts are not excessively long and are of poor design

All else is trivial. ■

Originally Posted by minemechaz

....

We need to know if the power required by one of our current conveyors in place is the adequate but don't know where to look for this information.

.....

If your conveyor runs then the motor power is adequate.

Now, what is the question again? ■