Our Company
With 15 years of experience in the industry, RUIJIA specializes in providing a full range of components from low vacuum to ultra-high vacuum, including vacuum flanges, fittings, bellows, valves, centering rings, clamps and vacuum chambers, and other core products.
3500m2
Factory Area
1000+
Vacuum Products
ISO90012015
ISO Quality Management Standard
Trustworthy
The factory is equipped with advanced CNCmachining equipment and professionaltesting instruments to ensure that eachproduct meets strict precision standards.We can provide comprehensive technicalsupport and service guarantee for bothstandard products and specialcustomization.
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Meet Lily Guo
A 90s Female Trailblazer in Vacuum Components
In international trade, Lily Guo, a dynamic 90s - era female entrepreneur, leads RUIJIA Vacuum to prominence in exporting KF/ISO/CF vacuum flange fittings.
With years of experience, she has a profound understanding of KF, ISO, and CF vacuum components' specifications and market demands. Under her leadership, our company has established strong partnerships with global manufacturers, ensuring high - quality products at competitive prices.
Lily Guo emphasizes customer - centric service, offering technical advice and timely delivery.
Reach out to Lily Guo at [email protected] or 0086-15906484621 to explore our KF/ISO/CF vacuum components and start a mutually beneficial partnership.
Corporate Journey
2009
In 2009, Wenzhou Senj Steel Industry Co.,Ltd was founded in Wenzhou city. Starting from a small office - workshop,they made basic valve flanges and fittings for local small - scale industries and research labs.
2010-2015
The company introduced high-precision CNC equipments, developed ultra-high vacuum components and argon arc welding process, and expanded the product lines of CF flanges, bellows, vacuum valves and so on.
2016-2020
In 2016, set up a new company called Ruijia Vacuum Equipment Co.,Ltd, set up an international sales department, product are sell to Japan, Korean,Germany,etc. And establish long term and strong cooperation with customers.
2021 - Present
In 2021, Ruijia Vacuum will strategically cooperate with international distributors to expand the global market and upgrade the production capacity. Through continuous R&D and innovation, we will improve the system of testing, assembly and cleanroom products.
Company Philosophy
At Ruijia, we build our business on three core principles
Integrity First
Matching words with actions and taking responsibility for every order
Innovation Driven
Enhancing efficiency through reliable products and professional support
Win win cooperation
Delivering cost-effective solutions via efficient teamwork
Global Markets
Equipped with an excellent QC team and state-of-the-art production equipment, 80% of our products are exported to USA, Japan, Korea and Europe. We have won the trust of many customers through our high quality products and services.
Customer Testimonials
Michael Anderson
Ruijia's custom CF flanges with copper gaskets achieved 10⁻¹¹ Pa·m³/s leak rate, exceeding our aerospace project requirements. Their metallurgical analysis reports were NASA-compliant.
Sophie Müller
The ISO-KF centering rings demonstrated perfect concentricity (±0.01mm) across 10,000 pieces. Ruijia's batch-to-batch consistency is unmatched in our 15-year supplier network.
David Laurent
FDA-grade 316L bellows passed our 200°C sterilization tests. Ruijia's engineers redesigned the convolution geometry to double our production line speed at no extra cost.
James Wilson
Ruijia delivered UHV chambers with ≤0.3mm welding distortion for our quantum experiment. Their vacuum technicians provided 24/7 installation support across time zones.
Giovanni Rossi
The 5-axis machined titanium adapters survived 500 thermal cycles (-196°C to 450°C) in our LNG plant. Ruijia's material traceability system meets EN 10204 3.1 standards.
Emma Johansson
Ruijia's aluminum vacuum clamps reduced our robotic arm weight by 35% while maintaining 10⁻⁸ Pa sealing. Their logistics team handled all CITES documentation for global shipping.
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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