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Liquid Loss-in-Weight Feeder

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Liquid Loss-in-Weight Feeder

The Colormax Systems Liquid Loss-in-Weight Feeder is designed to provide gravimetric feeding of a liquid into an industrial process.

Liquid loss-in-weight feeders are most frequently applied in continuous processes, such as feeding a compounding extruder where difficult flowing liquids must be metered at precise feed rates. These liquids are often waxy or viscous and must be heated to flow properly.

The liquid loss-in-weight feeder consists of a storage tank mounted on a high accuracy scale designed for industrial applications. The liquid is metered by a pump positioned off the scale so that only the liquid and its container are weighed.

If the temperature of the liquid to be fed must be maintained at a constant level, a strip heater or transfer heater using oil or water may be employed. When using a strip heater, temperature is controlled by a thermostat and a safety thermostat. An insulating jacket is placed over the strip heater. The connecting line is also heated and thermally insulated. When using heat transfer, the tank is double-walled and filled with oil or water. Accuracy can reach ±0.5%.

High Precision Weighing Technology

Colormax Systems brings high accuracy weighing technology to its value priced gravimetric liquid feeders. The sophisticated load cell provides split-second, high-precision weighing in the milligram range and is specially designed for harsh industrial environments.

High Accuracy Gravimetric Control

With patented software developed by our international parent company, The Colormax Systems Micro Liquid Loss-in-Weight Feeder provides precise feeding with consistent, accurate, reliable and repeatable results. Liquid feeders are easily integrated with gravimetric bulk solids feeders. The gravimetric controller and operation interface allow for individual unit and recipe control. Each feeder has its own control board. Connection between control boards and operation interface is supported by industrial protocol.

For more information on thecontroller and operation interface see separate web page and specification sheet.

The following table provides estimated minimum feeding rates for most of liquid media. For feed rates below the minimum feed rate, feeder testing is recommended.

Specifications - Download Full Liquid Loss-in-Weight Feeder Specification

Minimum Feed rates Materials Fed Heating System
2 L/h Most liquid media Strip Heater/ Oil or Water Heater Transfer System