PLC Based Batch Blending System

With expertise in controls, CRG Logics has provided retrofit controls for most all commercially available resin blend systems on the market today. For less critical applications where cost, not blend accuracy, is of primary concern we offer a Maguire Batch Blending System fitted with a CRG Logics Allen Bradley PLC Based Control, weigh hopper and vacuum convey system.

Batch blending technology offers a single weigh hopper in which each ingredient is fed in alternately with slide gates until a "Batch" is made. This batch is then dropped into a mechanical mixer, then out to process. A level signal in the extruder hopper typically controls the rate of this unit. This solution offers a slow acting less accurate throughput/yield control.

This system offers diminished accuracies, at extreme low & high rates, average blend homogeneity (will vary based on the blend), a lower initial investment, and higher cost of ownership **.

In a typical three layer film line a CRG Logics, Inc. PLC Based Control System with a single color touch screen interface would control all blend, convey and throughput control parameters. This system greatly simplifies line operation while reducing installation and maintenance costs.

This system is designed for extruder or mezzanine mount with options of an extruder weigh hopper, magnet drawer, and automatic purge system.

** (Cost of ownership factors in maintenance, accuracy, downtime, installation requirements, raw material costs, etc. and will vary for each installation).

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