Speed Chart

Alaska High Speed Elevator Bucket Speed Chart

Recommended Minimum and Optimum Pulley Speeds for the following Alaska Agricultural Elevator Buckets (Centrifugal discharge)

AlaskaAlaska Hy-ProAlaskaAlaska Hy-Pro
       

ELEVATOR
BUCKET
NOMINAL PROJ. (INCHES)
PULLEY MINIMUM AND OPTIMUM PULLEY SPEEDS
CIRCUMFERENCE
(FEET)
1.05 1.31 1.57 2.07 2.62 3.14 3.67 4.19 5.24 6.28 7.85 9.42 11 12.57 15.7 18.9 22
DIAMETER
(INCHES)
4" 5" 6" 8" 10" 12" 14" 16" 20" 24" 30" 36" 42" 48" 60" 72" 84"
3" Minimum 89 80 81 74 69 64  
Optimum 158 143 131 115 103 95  
4" Minimum   75 70 53 51 50 46 43 40  
Optimum   146 127 109 103 96 89 79 72  
5" Minimum   70 67 63 50 48 45 40 40 35 32 32  
Optimum   161 131 111 102 95 90 75 67 61 55 51  
6" Minimum   50 45 40 36 35 31 30  
Optimum   93 84 73 67 61 55 51  
7" Minimum   40 36 34 33 31 30 27 26 20
Optimum   80 78 73 65 59 55 50 45 40
8" Minimum   33 32 30 30 27 25 23
Optimum   60 58 57 56 47 43 40
10" Minimum   30 25 20 20
Optimum   52 45 42 40

 

MINIMUM SPEED : Slowest Speed at which Centrifugal Discharge will occur.

OPTIMUM SPEED : Speed at which most desirable results are obtained.

MAXIMUM SPEED : Maximum Speed is governed by many factors including Bonnet Shape, clearances, throat location, desired capacity and commodity elevated, therefore is not published

This table is for general reference only and does not guarantee perfect discharge for all bucket elevators at all speeds shown within speed range. Note: Alaska Elevator Buckets spaced on minimum centers may require faster minimum speeds than shown on this chart.

The optimum speeds shown are based on free flowing whole grains. The optimum recommended speed for feed ingredients and other similar materials is 85% of the optimum speed shown.

*NOTE: Alaska BUCKETS MAY REQUIRE FASTER MINIMUM SPEEDS THAN SHOWN ON THIS CHART AT MINIMUM SPACING.

Alaska-Bucket® Agricultural Elevator Bucket Speed Chart

Alaska-BUKET SSAlaska-BUKET LP
 

Recommended Minimum and Optimum Pulley Speeds for Alaska-Buket Agricultural Elevator Buckets (Centrifugal Discharge)

 

ELEVATOR
BUCKET
NOMINAL PROJ. (INCHES)
PULLEY MINIMUM AND OPTIMUM PULLEY SPEEDS
CIRCUMFERENCE
(FEET)
2.62 3.14 4.19 4.71 5.24 5.76 6.28 7.85 9.42 11 12.57 14.14 15.7 18.9 22 25.13
DIAMETER
(INCHES)
10" 12" 16" 18" 20" 22" 24" 30" 36" 42" 48" 54" 60" 72" 84" 96"
3" Minimum 85 75 55 55 55 55  
Optimum 144 121 90 81 76 72  
4" Minimum   75 55 55 55 55 50  
Optimum   121 90 81 76 72 72  
5" Minimum   55 55 55 50 42 42 40  
Optimum   81 76 72 72 72 72 63  
6" Minimum   50 42 42 40 40 40 40  
Optimum   72 72 72 63 58 58 54  
7" Minimum   42 42 40 40 40 40 40 34 34
Optimum   72 72 63 58 58 54 49 45 40
8" Minimum   40 40 40 40 34 34
Optimum   58 58 54 49 45 40

 

MINIMUM SPEED : Slowest Speed at which Centrifugal Discharge will occur.

OPTIMUM SPEED : Speed at which most desirable results are obtained.

MAXIMUM SPEED : Maximum Speed is governed by many factors including Bonnet Shape, clearances, throat location and desired capacity.

This table is for general reference only and does not guarantee perfect discharge for all bucket elevators at all speeds shown within speed range. Note: Low-Profile Elevator Buckets spaced on minimum centers may require faster minimum speeds than shown on this chart.

The optimum speeds shown are based on free flowing whole grains. The maximum recommended speed for feed ingredients and other similar materials is 85% of the optimum speed shown.

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