Calculating Conveyor Speeds
should your conveyor operate?
The standard speed for most unit
handling conveyors is 65 FPM (Feet Per Minute). This is the average speed a
person walks when carrying a 50 lb. box. Other speeds, both faster and
slower than 65 FPM, are also available.
However, some facts should be
pointed out when changing speeds:
Horsepower ratings in the
Cisco-Eagle catalog and website are calculated according to the standard
speed listed for that conveyor. When increasing the speed, more horsepower
may be needed.
As a rule of thumb, it will take
twice as much horsepower to move a given package at 130 FPM than at 65 FPM.
The formula below may help to determine the approximate power requirements :
Horsepower in chart
(based on 65 FPM) x DESIRED SPEED (In feet per minute)/65
Model TA, 11' long requires 1/2 Hp motor at 65 Feet per minute
for a total load of 320 pounds.
You desire your conveyor to operate at 90 Feet Per Minute.
Calculate as follows: (1/2 X 90) / 65 = .69
You should select the next highest horsepower or 3/4 Hp.
This formula may be used to give
you a good estimate. Ask us to do a complete horsepower calculation is you
have any concerns.
The service life of a conveyor
running at a higher speed may be shortened considerably. Most conveyors are
not designed to run over 200 FPM. When they do, some parts may need to be
balanced to prevent excessive vibration, and special bearings may be
required. The type of belting used on a conveyor may also need to be
NOTE: Pallet handling conveyors
generally operate at 30 FPM and 30 may be substituted in the denominator of
If you have questions, contact
us. Cisco-Eagle can help you determine the right speed, horsepower, and
other specifications for your conveyor.