PNEG-2381 2000 Series U-Trough Bin Sweep Auger Unload System (72' - 78') 57
9. U-Trough and Sweep Selection Guidelines
IMPORTANT: Capacity requirements must be determined prior to ordering any unload/sweep system.
Failure to do so may cause the sweep to overfeed the center gate. This could cause the
electric motor to cut out and may damage the sweep backplate.
Listed on below are guidelines to assist with proper flight diameter and motor pulley selection. These are
only theoretical values and will change with grain types, conditions and moisture content.
All capacities are shown in Bushels Per Hour (BPH).
Pulley Selection
1750 RPM/60 Hz Motors
Below are charts outlining unload and sweep speeds and capacities when using a 1750 RPM motor.
NOTE: 1750 motor RPM is typically used in North America.
12" and 18" Pulley
1460 RPM/50 Hz Motors
Below are charts outlining unload and sweep speeds and capacities when using a 1460 RPM motor.
NOTE: 1460 motor RPM is typically used in Europe.
U-Trough Unloader with Sweep
12.4" Flight Pulley 18.4" Flight Pulley
3.5" Motor Pulley 4" Motor Pulley 5" Motor Pulley
RPM Capacity
(Bushels per
Hour)
RPM Capacity
(Bushels per
Hour)
RPM Capacity
(Bushels per
Hour)
Motor 1750 1750
1750
Unload 500 6000 565 6800 475 5800
Sweep
6"
333
1500
376
1700
316
1400
7-1/4" 2500 2800 2400
8-1/4" 3500 4000 3400
9" 4500 5300 4400
U-Trough Unloader with Sweep
4-1/4" Motor Pulley and 18.4" Flight Pulley
RPM Capacity
(Bushels
per Hour)
Motor 1460
Unload 340 4000
Sweep
6"
226
1000
7-1/4" 1600
8-1/4" 2300
U-Trough Unloader with Sweep
4-1/2" Motor Pulley and 18.4" Flight Pulley
RPM Capacity
(Bushels
per Hour)
Motor 1460
Unload 356 4300
Sweep
6"
237
1100
7-1/4" 1700
8-1/4" 2500
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