Loss in Weight Feeders

Loss in Weight Feeders

SP90

Procon offer two main types of loss in weight feeders. The weighing controller adjusts the speed of the output feeder to proportion the quantity according to the set value. The speed of the output feeder is calculated according to the volumetric proportioning characteristics of the feeder and the weigh hopper contents level. The hopper is slowly emptied (normally 3 to 30 minutes between refills) and the loss of weight per unit time interval is used by the controller to update the volumetric information and to compensate for changes in material flow and head pressure as the hopper is emptied and refilled. This profiling of the feed characteristic ensures that the output feeder can be adjusted even during the refill cycle.

SP95

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Types SP90 and SP95 Loss in Weight Feeders

Static weighing better than 0.1%
Proportioning accuracy better than 0.3%

Both the SP90 and SP95 loss in weight systems are a dust-proof weighing and control system for continuous proportioning of bulk materials. The SP90 is suitable for feed rates of up to approximately 1000 litres per hour while the SP95 can be used for up to 50 cu. metres per hour. The systems give consistent feeding and high accuracy, even with difficult materials. The compact design offers high reliability together with simple maintenance, installation, calibration and commissioning. The units have separate data storage for up to 50 different material characteristics and offer fast response with continuous control.

Please note that we can carry out trials on your materials at our Sevenoaks plant

Loss in weight

SP90 Datasheet PDF Download
SP95 Datasheet PDF Download

(Requires Acrobat 4 or above)