| 
Planetary Systems
VPT's planetary systems have been used for the world's
most demanding coating applications.
VPT's Planetary Assemblies incorporate wide faced gear
drives fabricated entirely of 304 series stainless steel.
The main bearings are of an advanced aerospace design.,
utilizing a Micro-Seal® bearing treatment designed
for operation in excess of 350ºC.
VPT also designs and manufactures specialized fixture
configurations, including modified single rotation,
counter rotation, dual drive, and a planetary fixture
with the capability to flip each substrate planet for
second-side coating.
This unique, proprietary flipping assembly eliminates
the need for a second complete coating cycle when there
is a requirement to coat both sides of a substrate.
This flip fixture system can be adapted for virtually
any size chamber and process. The design features a
low profile to maximize the throw distance and is available
in configurations that allow heat up to 300º C. Use
of irrational gear ratios is maintained for optimum
uniformity of coating. VPT's flip fixture system may
be ordered with any of our line of optical coating systems
and is also available for retrofit applications.
|
