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Continuous gravimetric blender

Continuous gravimetric blender--Comet's Rajkovich says the GraviMix continuous gravimetric blender is the company's first. He adds that he's "looking to get back into extrusion" with this unit, which he says is ideal for all types of extrusion processes, including multilayer film and sheet, pipe, profile, cable coating and fiber. It can also be used with injection molding machines.

The unit can blend from six to eight components at rates of 2000 to 3000 lb/hr. Advantages cited for the GraviMix include: minimal setup time; easy cleaning of screws, hoppers, etc.; convenient maintenance of integral machine components (such as load cells, controllers and valves) and simple installation on the processing machine.

A high level of modularity makes this system flexible and adaptable to various production configurations, says Rajkovich. "For example, the system can be upgraded by replacing any and all of the feed screws with feed screws yielding higher flow rates."

Standard communication protocols and a specially designed software package run on a PC using Microsoft's Visual Basic and Access software. Recipes and other information canbe downloaded to controller's memory so there is access to cumulativedata for each material. It also readsthe status of each machine andother system parameters.

Comet Automation Systems, Inc
Dayton, OH 

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