MicroDry-Convey dryers designed for small-output machines

Published: May 9, 2012 6:00 am ET

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Dri-Air Industries Inc. focused on dryers for small-output machines, during NPE2012.

Dri-Air’s Compact MicroDry-Convey eliminate floor-mounted drying equipment on small injection presses and extruders. The dryer, hopper and conveying system fits on the back of most vertical injection molding machines.

The CA series has no moving parts and has simple trouble-free design, so it’s ideal for low throughput applications. Three models are available offering process rates from 2-10 pounds an hour. Hoppers run from 5-15 pound capacity.

MicroDry-Convey can operate in drying temperatures from a high of 350°F to a low of 80°F, without the need for water-cooled, after-coolers.

The dense-phase, single-dose conveyance system moves dry resin to the feed throat to a small, just-in-time receiver. Conveying can be done by compressed air or nitrogen.

Also from the company in East Windsor, Conn.—Mini PD dryers for small presses and extruders, by replacing press-mounted drying hoppers and placing the dryer and hopper on a compact, floor frame on casters. Two drying options are available, one with the Arid-X desiccant dryers, the other with a CAMD compressed air dryer. With either version, an optional DAC compressed air loaders eliminate any press-mounted drying hoppers, for easier material changeovers.

Dryers can be staged outside the molding area in preparation for the next material run.

Dri-Air also has developed a new line of precision hopper-mounted dryers that use factory air to dry the material. They can handle process rates up to 15 pounds an hour.

The compressed-air coolers eliminate what Dri-Air called the hassles of conventional dryers that require cooling water or after-coolers.

And Dri-Air has upgraded its volumetric blending system for the PDII dryer. Both feeders are mounted on load cells, to monitor and record the actual amount of each material used. The feeder is automatically filled to a preset amount by opening a gate under the drying hopper. The unit records the actual amount of material in the feeder and compares that to the amount left in the feeder after dispensing into the common conveying system.

Tel. 860-627-5110, fax 860-623-4477, email sales@dri-air.com.


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MicroDry-Convey dryers designed for small-output machines

Published: May 9, 2012 6:00 am ET

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