Chamber for Vacuum Extrusion System

vacuum extrusion system chamber
Rear view of the Custom Vacuum Extrusion Chamber
This is a custom acrylic vacuum chamber build for a high volume manufacturer of parts that are fabricated using vacuum extrusion techniques. The challenge was to build a vacuum chamber system which interfaced on 3 sides with various in-house extrusion equipment components in order to create a good vacuum seal. The bottom, the top, and on the rear of the chamber had to interfere with the vacuum extruder assembly. This was accomplished by incorporating a double gasket mechanism on the bottom and top and by incorporating a clamping mechanism on the rear. The top of the chamber interfaced with extrusion cutting equipment. The rear of the chamber interfaced with the vacuum extrusion die. The bottom of the chamber interfaced with the vacuum hopper.

The advantages of using an acrylic vacuum chamber in vacuum extrusion environments is that it allows for full visibility of the product. Additionally, a camera system can be added to the operation enabling fully visual inspection of the interior hence increasing throughput, quality, and safety.

On a personal note, this was a very tricky engineering problem because we were aiming to design a chamber which had to create a vacuum tight fit against three surfaces which were not completely perpendicular to each other due to wear and tear. This was accomplished by using a double gasket aluminum interface plate.

In the end, all went well, and looking back we have nothing but gratitude to this customer for giving us a chance to push ourselves beyond what we were comfortable doing - hence making us better engineers. This was a challenging and fun project; not only were we able solve a problem they were wrestling with for quite some time, we also made friends and connected with people on the other side of this country.

Video of the Extrusion Vacuum Chamber

Did you know that we carry a many more products?

We make Robustly Designed and Quality Engineered Systems. You should check out some of our other items we carry; click on the links below.

Stainless Steel Vacuum Chambers
Stainless Steel Vacuum Chambers are vacuum chambers made from stainless steel. The advantages of a Stainless Steel Vacuum Chamber are High Vacuum and a Wide Temperature Range of applications.
BNC Vacuum Feedthroughs
Coaxial Vacuum Feedthroughs are vacuum rated BNC connectors that enable you to run BNC from outside of vacuum chamber towards inside of the vacuum chamber without disturbing the vacuum. Triaxial Vacuum Feedthroughs, just like coax vacuum feedthroughs, will enable you to run Triax Connections from outside towards the inside of the vacuum chamber without disturbing the vacuum levels inside the vacuum chamber.
Our Work: Vacuum Storage of Pharmaceutical Products and Medical Supplies
A pharmaceutical manufacturer contacted us to build them a large vacuum storage system for their pharmaceutical products. They were looking for as much footprint as possible which is why they got a two-chamber system from us. They needed a total of 6 shelves per chamber including trays. Finally, they were looking to have both chambers to be placed on a table frame assembly with lockable swivel casters. What you are seeing is a two chamber system, each chamber is our 20 inch cube acrylic vacuum chamber, front load hinged door. Each chamber can be accesses independently while the other is under vacuum. The trays can be easily loaded and unloaded. This whole system can also be moved to anywhere in their facility.
Related Articles: Force Decay Leak Testing
Force Decay Leak Testing is a very popular quantitative leak testing method used to quality test package and product integrity due to its ability to detect small leaks which cannot be seen through visual inspection. In this method, the test specimen is internally inflated by either internal pressurization or vacuum force. The inflated test specimen will, in turn, apply a force on a pressure transducer. Finally, the change in force applied by the inflated specimen over a specified time is observed.