ITAR Registered · DDTCISO 9001:2015AWS-certified weldersEst. 1994 · Hayward, CA50,000 sq ft
510.324.8926
Helium leak-tested to <3×10⁻¹⁰ mbar·L/s

Ultra High Vacuum Systems

Custom vacuum chambers taken from raw stock to a leak-tested, ready-to-install assembly without leaving our building.

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Custom UHV chamber body machined in-house
Capability 02 / 08Hayward, CA
Leak detection<3×10⁻¹⁰ mbar·L/s
Detector range10⁻¹¹ – 10⁻¹
UHV TIG welders3 × Dynasty 700
Chamber size10 in to 8 ft
Overview

Every step of a vacuum chamber, under one roof.

We machine chamber bodies and lids on our large-envelope bridge mills, weld ports and flanges using UHV TIG procedures run by AWS-certified welders, and verify seal integrity with helium leak detection. A chamber stays in our facility until it meets your vacuum specification.

Projects range from a single research vessel to production chambers for semiconductor equipment OEMs, in aluminum, stainless and carbon steel. We understand the surface finish, cleaning and handling discipline vacuum work demands.

Typical work
  • Process chamber bodies and lids for fab tools
  • Beamline and experiment vessels for national labs
  • Space-simulation and sealed flight assemblies
  • Mass spectrometer and instrument vacuum chambers
  1. MachineBody and lids on bridge mills and 5-axis
  2. CleanVacuum-grade handling and cleaning
  3. WeldUHV TIG procedures, AWS-certified
  4. Leak testASM 182T helium detection
  5. Inspect + shipCMM report and leak certificate
Equipment

What runs the work.

Machine-by-machine specs, so you can judge fit before you call.

Machining

Viper PRW-5340 · B5000GDWBridge mills for large chamber bodies
HAAS VF-6/50 · VF-5/50TR5-axis for port geometry and lid features

Welding

(3) Miller Dynasty 700500 A, 100% duty cycle · UHV TIG procedures
Miller Syncrowave 350LXSupplementary TIG

Leak testing

ASM 182T helium leak detector<3×10⁻¹⁰ mbar·L/s · range 1×10⁻¹¹ to 1×10⁻¹ mbar·L/s

Inspection and assembly

Nikon Altera S 10.7.6 CMMFrom 1.8 µm + L/400
Faro Quantum MOn-machine verification
PEMSerter · Dake 50HHardware and press-fit assembly
Photos · 7

From the floor

Unstaged photos from the Hayward floor. Select any photo to enlarge it.

Vacuum chamber lid with port features
Vacuum chamber lid with port features
UHV weldment assembly
UHV weldment assembly
Leak-tested vacuum system ready for delivery
Leak-tested vacuum system ready for delivery
Large vacuum chamber on a bridge mill
Large vacuum chamber on a bridge mill
UHV component with precision sealing surfaces
UHV component with precision sealing surfaces
UHV assembly with welded ports and flanges
UHV assembly with welded ports and flanges
Completed UHV chamber system, inspected and tested
Completed UHV chamber system, inspected and tested
FAQ

Questions engineers ask

Do you build vacuum chambers?

Yes, it’s one of our signature capabilities. We machine the body and lids, weld ports and flanges to UHV TIG procedures, and helium leak-test every assembly before it ships.

What leak rate do you test to?

Our ASM 182T detects leaks below 3×10⁻¹⁰ mbar·L/s across a range of 1×10⁻¹¹ to 1×10⁻¹ mbar·L/s. Acceptance criteria follow your specification, and the report ships with the chamber.

Which materials do you use for UHV?

Mostly 316L and 304 stainless and 6061 aluminum, plus carbon steel where the application allows.

Where it’s used

Industries that depend on it.

The same capability, documented to each sector’s requirements.

SemiconductorUHV chambers and fab-tool hardwareExplore →National Labs & ResearchBeamline, detector and vacuum hardwareExplore →Space SystemsBus panels, propulsion and reflector structureExplore →BiotechnologyInstrument housings and vacuum chambersExplore →

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Drawings, specs or even a rough concept are enough to start. Mutual NDA on receipt.

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