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The primary cause of bubbles and voids in potting, encapsulation and resin-casting operations is entrapped air. The simplest way to eliminate the problem is to cast in a vacuum. The Envax VE Series Vacuum Encapsulator is designed as a complete solution for may potting, encapsulation and resin-casting applications.

The Envax VE Series Vacuum Encapsulator includes all of the features of the Envax VC vacuum chambers, plus the equipment necessary for vacuum potting and vacuum encapsulation. It has a built-in resin feed tube inlet with a manually operated trigger style feed control that allows the operator to regulate the resin flow. The vacuum in the chamber causes the resin to be drawn inside, just like drinking through a straw. The system uses cost effective, disposable feed tubing; virtually eliminating clean up. The standard size resin feed tubing is 1/4 inch inside diameter, by 3/8 inch outside diameter. A roll of tubing is provided with each VE Series Vacuum Encapsulator.

Multiple parts can be processed during each vacuum cycle by using the included articulation rod to position the resin feed tube above each part. The articulation rod is capable of push-pull and rotary motion. It is provided with multiple bent-loop extensions to accommodate parts of varying height. For additional flexibility in moving parts within the chamber, the optional Rotary Table can be specified.

Most epoxy resins flow better when heated. One typical filled epoxy resin that has a viscosity of 320,000 centipoise (cps) at 75 degrees F (stiffer than peanut butter) drops to 25,000 cps (like chocolate syrup) at 150 degrees F. If you need heat, Envax has solutions available.

APPLICATIONS

• Vacuum Potting
• Vacuum Encapsulation
• Vacuum Casting