Build vacuum systems you can trust before you buy a single part
Vacuum Assembler exists so vacuum engineers can design more effective systems without lingering questions about how they will perform. Assemble your system from real ConFlat parts, and know its pumping speed, pumpdown time and base pressure before anything is ordered, welded or baked.
Why we built it
A vacuum system is only as good as its weakest connection. A long nipple, a narrow reducer or a badly placed gauge can cost an order of magnitude in base pressure, and it's usually discovered after the parts arrive and the system is pumping. The usual answers are hand calculations from conductance tables, rules of thumb, or a specialist simulation code that takes days to set up.
We wanted something better: a tool where you build the system the way you'd build it on the bench, and the physics comes with it. Every part in the catalog is characterized from its real 3D geometry, every joint gets its gaskets and bolts, and every assembly can be simulated in seconds, so the questions about performance are answered while the design is still easy to change.
Built by vacuum engineers
Vacuum Assembler is built by vacuum system engineers who have designed, built and operated high and ultra-high vacuum systems. The team brings experience from places like NASA, SpaceX, MIT and Harvard, where a system that doesn't reach its pressure costs real schedule and real science.
That experience sets the priorities: results you can check, reports you can hand to a colleague or a customer, and a parts list you can actually order from.
Inspired by CERN and leading labs
Our simulation engine takes its inspiration from the tools trusted at CERN and other leading laboratories, above all Molflow, the test-particle Monte Carlo code developed at CERN for the vacuum systems of its accelerators. The full assembly molecular flow simulation follows the same method: molecules are released from the walls, traced bounce by bounce through the real geometry of the whole system, and counted where they land, giving the pressure at thousands of spots over the walls and the conductance of every connection.
The quick simulations use per-part transmission data computed the same way when each part joins the catalog, so even a one-second result rests on the real shape of every cross, tee and reducer rather than on textbook approximations.
Contact us
Questions about Vacuum Assembler, a system you're designing, or working with us? Send us a message and we'll get back to you, usually within one business day.
Vacuum Assembler is managed by UHV Technologies LLC, Washington, USA.