Quality & Precision in Vacuum Component Manufacturing

Focusing on high-quality work

We recognize that product quality is the cornerstone of brand success. Therefore, we invest significant human and financial resources to continuously improve the quality of our products, while raising our service standards. We solemnly promise that each and every product will strictly comply with our customers' specific requirements on hygiene standards.

Raw Materials

Selection of high quality vacuum grade materials ensures excellent air tightness, corrosion resistance and mechanical properties.

Ensure that the materials supplied have valid certificates and comply with standards and designs.

Machining centers

With a full complement of precision machining equipment, our facility specializes in custom fabrication of stainless steel and aluminum components, with proven expertise in the manufacture of critical vacuum chambers and process piping for semiconductor, liquid handling and photovoltaic applications.

Gantry machining center

Five-axis machine tools

CNC Machine Tools

Large Gantry Machining Center

4200*3200*1400 x1

Cnc Machine Tools 1600-800 x30

Cnc Machine Tools 1200*1500 x3

Various Cnc Machine Tools x1

Various Machining Centers x6

Various Tig Welding Machines x2

Helium Leak Detector x1

Three-Coordinate Measuring Machine x9

Material Analyzer x1

Our Craftsmanship

Welding

Surface Finishes

Water-Cooling

Cleaning and Packaging

Welding

With profound experience and exquisite skills, our welding team flexibly utilizes a variety of welding processes, such as laser welding, electron beam welding, etc., to create an exclusive welding solution for each customized product to ensure stable operation in a vacuum environment.

Surface Finishes

The following finishing techniques are available: Glass Bead Blasted, Machine Polished, and Electropolished. Flanges and machined components (faced, turned or bored) come standard with a 32-microinch surface finish and a 16-microinch sealing surface. For a machined finish better than 32 micro-inch, speak to one of our design engineers.

Water-Cooling

We offer tailored water-cooling solutions for various chamber types. Our methods cater to both flat and cylindrical chambers and are continually refined to ensure optimal performance and reliability.

Cleaning and Packaging

All machined parts are cleaned with heated ultrasonic detergent and rinsed with multiple passes of deionized water to completely remove machining residues and then cleaned with dry hot air. Small parts are packed by vacuum sealing, large flanges are protected by aluminum foil shield, welded parts are equipped with anti-static bags and cushioning air pillows for professional packing, and special specifications are supported by customized wooden crate solutions.

What Machines We Use To Inspect The Materials

Visual Inspection

The vacuum parts industry uses visual inspection to quickly check for surface defects, assess weld quality, verify assembly integrity, ensure cleanliness and screen for nonconformities

Appearance Inspection

Roughness testing is used in the vacuum parts industry to ensure sealing performance, optimize surface finishes, improve weld quality, reduce the risk of contamination, extend part life, and comply with industry standards

Performance Testing

Helium Mass Spectrometer Testing: All welds and sealing surfaces are certified with a state-of-the-art helium mass spectrometer leak detector with a maximum rate of 1x10-9 std. cc of helium.

To Check The Chemical	Stainless Steel Spectrometer
To Check The Surface Roughness	Ra RoughnessInstrument
To Check The Roundness	Vernier Caliper
To Check The Thickness	Micrometer, Thickness Gauge
To Check The Straightness	Horizontal And Vertical Scale
To Check The Pressure	Pressure Testing Machine
To Check The Leaking	Hydraulic Pressure Machine

Frequently asked questions

We also have a dedicated FAQ page where we try to answer other questions. Visit the FAQ page.

Learn More

What surface finishes are available for vacuum chambers?

Machine polish (Ra0.8μm), Electropolish (Ra0.4μm), Passivation (anti-oxidation).

Do your products meet semiconductor cleanliness standards?

Yes, compliant with ASTM E595 outgassing, particles ≤ISO Class 4.

What is the lifespan of vacuum bellows?

Standard: ≥500K cycles (±10% stroke); Reinforced: ≥1M cycles.

What international standards do your products meet?

Compliant with SEMI, ASME BPE, ISO 286; RoHS/REACH test reports available.

What materials are used for vacuum flanges?

Standard: 304/316L stainless steel. Options: Aluminum (lightweight), Titanium (corrosion-resistant), Copper (high thermal conductivity).

After-Sales Service

We have a modern stock management system and professional after-sales service team.

Rich stock, fast delivery

Quick response within 24h

Quality assurance

Accessory replacement

RUIJIA Tailor-made