Dryer Master AM3, Product Manual

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Dryer Master  A M 3 Product Manual
© Dryer Master Inc. Page: 71
8.1.4 Bypass Chute screw metering RPM table
Metering Device Approximate rpm. Gear Reduction for 1750
rpm Motor
6” screw conveyor standard
pitch
6.5 270:1
6” screw conveyor ½ pitch
13 135:1
4” screw conveyor standard
pitch
20 88:1
4” screw conveyor ½ pitch
40 44:1
4” flex screw conveyor
20 88:1
Figure 98. – Table of metering device RPM – screw conveyor
Note: When using a screw conveyor as the product-metering device it is recommended that the screw
section under the moisture sensor chute be made ½ pitch. This ensures the conveyor is only ½ full
once the screw returns to normal pitch reducing mechanical wear, product damage and motor/gearbox
load requirements.
!
Note:
!
Placement at the feed end ensures maximum product flow at the sensor. Leave
sufficient space between the conveyor and the sensor to ensure a plug flow at the
sensor.