Trusted Vacuum Components Manufacturer RUIJIA | Custom Vacuum Solutions For Precision Industries

Product

Line

We have a full range of vacuum products

1 KF Flanges and Fittings

2 ISO Flanges and Fittings

3 CF Flanges and Fittings

4 Vacuum Valves

5 Vacuum Adapters

6 High Purity Tubing

Customization

Process

Learn More
Our products includes vacuum fittings, vacuum flanges, vacuum bellows, vacuum clamps and vacuum valves are available in a variety of sizes and configurations to meet the specific needs of our customers.
We also offer custom design and manufacturing services to meet the unique requirements of our customers.
1,If customer have the drawing, which includes the dimensions, materials, special requirements, then we can make the goods according to the drawing.
2, If customer have no drawing, but have sample, then a sample need to be sent to our engineer, then we will gauge dimensions, and make a drawing. Then we make the goods according to the drawing.
3, Leave production to us and leave time to your market. We will customize the products you need in the shortest time and give them to you with the highest quality requirements.
4, Rujia has been providing OEM/ODM & custom one-stop solution to brand vacuum manufacturers over 21 years. Only need your concepts or samples or CAD drawings, we can manufacture a perfect product for you.
CAD drawing(or sample)
Sample confirmation by customer
Making samples
Batch order

Why

Choose Us
Ruijia is the best vacuum components manufacturer in China, we are outstanding in production capacity, effective management, accurate leadtime, on-time shipments and problems-solving rate after sales.
Equipment
We have complete production line and testing equipment, including CNC process
Group
We have our own team to research, design, produce and sell!
Quality
We have passed lS0 9001:2005.standard, stable, reliable
Price
Our products compare favorably with other manufacturers
History
We are a company combined with R&D, production and sales wholly
Service
We can provide free sample, fast response and OEM service
Focus on

Sanitary Vacuum Fittings Manufacturing

Founded in 2009

, Ruijia covers an area of

3500 square metres

The company focuses on the development of high purity vacuum flanges, fittings, bellows, valves, brackets, etc. Our high end specialised products and technologies are used in a wide range of applications such as semiconductor manufacturing, vacuum metallurgy, vacuum heat treating, aerospace, industrial production, and medical equipment.
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Testimonials
A reliable supplier of highest quality custom vacuum-components , very easy to deal with, and fair price.
Farhan Fazel
Engineering and customer service support was veryfriendly,helpful and responsive
Sundas Maqbool
Customer service is always incredibly quick andhelpful,l genuinely have no complaints!
Paul White
Power Your

Application Research

3C Electronics
Aerospace
Battery
Biotechnology
Flat Panel Display
Pharmaceutical Industry Automation
Semiconductor
Solar Energy
Latest

News and Events

Keeping you up to date with the latest news and industry news from
KF Clamp Tightening: How Much Torque Is Actually Enough?
Determining adequate tightening torque for ISO-KF clamp connections, with size-based reference ranges and practical “enough” criteria.
2026.10.23
KF25 vs KF40 vs KF50: Selecting by Pump Speed and Line Length, Not Just Similar Inner Diameter
Selecting among KF25, KF40 and KF50 quick-connect flange sizes by evaluating how line conductance limits effective pumping speed, rather than comparing nominal bore alone.
2026.10.19
Why KF Quick-Connect Fittings Are So Widely Used in Modular Vacuum Systems
Learn why KF quick-connect fittings are widely used in modular vacuum systems. Compare KF with ISO and CF flanges, review key selection factors, and find practical guidance for system designers.
2026.10.10
Why KF Seals Fail: Centering Ring & O-Ring Guide
Most KF vacuum seal failures trace back to the centering ring or O-ring — not the clamp. Learn how to select, match, and maintain these components correctly.
2026.09.30
Vacuum Quick-Fit Fittings: Elbows, Tees & Cross Pieces
Learn how KF elbows, tees and cross pieces affect vacuum conductance, and get practical installation steps to avoid leaks and flow restrictions in your system.
2026.09.19
How to Stop Leakage on Large Bore Vacuum Flange Connections
Large vacuum flange leaks often trace back to torque, O-ring condition, or sealing surface damage. Learn a systematic troubleshooting approach.
2026.09.12
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

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