As the company's flagship product, the metal hollow O-ring has been deeply rooted in the chemical fiber industry for 20 years, providing direct and indirect services to internationally renowned brands such as OERLIKON and TMT. The product once had an international market share of over 40% in this field.

Excellent talents, advanced technology, sophisticated equipment, complete molds, and reasonable inventory are moving towards the advantages of more advanced equipment, more scientific management, more effective control, faster response, and more thoughtful service. All of these are the foundation that customers can trust. Raido is willing to serve our customers with high-quality products, excellent services, and optimized knowledge. We sincerely welcome new and old customers to visit and inspect our factory!

Raido, founded in 2005, is an emerging technology company specializing in the production of high-end seals.

For the past 20 years, we have provided services to over 1000 customers from trade to production, and our professional advantages have become increasingly prominent. We mainly focus on customers' special needs and market gaps, and continue to devote ourselves to the research and development of special seals for extremely harsh working conditions such as high temperature, high pressure, and corrosion. We have formed a distinctive product line led by metal hollow O-rings, metal C-rings, PTFE rubber composite gaskets, and low stress rubber gaskets.

The deep roots of Raido Semiconductor are a microcosm of the rapid development history of China's semiconductor industry, with industry advantages such as high market share and wide service scope, a highly stable customer base in the semiconductor industry, and milestone achievements.

Our Story

Raidosealing 20-Yr Expertise: Metal Seals for Extreme Temp & Pressure


Our Mission

At Raido, our mission is to provide innovative and reliable sealing solutions that enhance the efficiency and performance of our clients' operations. We are committed to delivering products that not only meet but exceed industry standards, ensuring the highest levels of safety and durability.

Our Teams

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Durable gold-plated metal C-ring with spring reinforcement for enhanced sealing in critical
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Raido's expanded PTFE tape: flexible, chemical-resistant sealing solution for industrial application

Ample Talent Reserve

Attracting top - notch industry talents, with a complete internal training system and a reasonable talent echelon, injecting lasting impetus into the company's development.

Outstanding Innovation Ability

Continuously investing in R & D and innovation, launching multiple new products each year. Keeping up with market trends, we provide customized solutions for customers.

Efficient Team Collaboration

All departments cooperate closely with seamless information flow. The entire process from R & D to delivery operates efficiently, ensuring the smooth progress of projects.

Rapid After - sales Response

A professional after - sales team is on standby at any time, responding quickly within 24 hours. They comprehensively solve customers' problems, ensuring customers' worry - free use.

Corrosion-resistant Alloy 600 Metal O-ring sprayed with PTFE for enhanced chemical resistance
A melt filter paired with a robust metal O-ring, ensuring leak-tight sealing in high-temperature
Durable heat exchanger gasket: high-temperature, pressure-resistant seal
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Raido's durableG-ST metal-reinforced rubber gasket: robust seal for industrial pressure applications
Raido's reliable clamp gasket: secure, leak-proof seal for industrial pipe clamp connections.
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Chemical-resistant PTFE gasket: high-performance seal for industrial pipelines and equipment.

Rich Market Experience

Having been deeply engaged in the sealing parts field for a long time, we cooperate with many well - known enterprises. The market share has been steadily increasing, and we enjoy a good reputation and wide recognition.

Strict Quality Control

A complete quality system ensures full - process inspection. Precision testing equipment is used, and the product qualification rate far exceeds that of peers. The reliable quality is trustworthy.

Exquisite Production Technology

Equipped with advanced facilities and proficient technicians, featuring a high degree of automated production. The production efficiency is constantly improved, and sufficient production capacity meets diverse demands.

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Strong R & D Capability

A gathering of senior R & D elites, with numerous patented achievements every year. They accurately grasp cutting - edge industry technologies and continuously introduce innovative sealing products.

Since 2005, we have been selling imported Chemseal Gasketsand metal sealing rings while developing our own technology. We have independently developed no adhesive production Chemseal gasket、automated welding equipment, customized heat treatment equipment, and created Raido's unique weldless thermoforming technology. Our innovations include automated welding processes, customized heat treatment solutions, and seamless metal C-ring welding.

Customer-Centric Approach

Raidoseal prides itself on its customer-centric business model, which is evident in their dedication to understanding and meeting the specific requirements of their clients. They offer personalized solutions, customized seal designs, and tailored services to ensure that each customer's needs are met efficiently. This approach fosters strong customer relationships and enhances customer satisfaction

Innovation and Development

From new products to the latest technical updates and happenings, see the latest Raido company news, and upcoming events.
Why Is Gasket Quality Important? 5 Core Reasons You Need to KnowWhy Is Gasket Quality Important? 5 Core Reasons You Need to KnowWhy Is Gasket QualityImportant? 5 Core Reasons You Need to Know 1.              Leakage Prevention: Safeguarding the First Lineof Safety The core function of a gasket is to seal the jointsof pipelines and equipment. If its quality is substandard, it
Created on 10.10
Founder's StoryFounder's StoryLooking back on RAIDO Shanghai’s 20-year journey, the "record of the lowest order"—84 RMB—has never been broken. From the courage of a small manual workshop to a hidden champion in the high-end seal industry, the founder of RAIDO has led the company
Created on 10.09
Holiday NoticeHoliday NoticeRaidosealing Double Festival holiday arrangement: The market will be closed from October 1st to 8th, and normal work will resume on September 28th and October 11th. The holiday duty team is always ready to respond and safeguard the safety of your equ
Created on 09.29
How to Select Gaskets for FlangesHow to Select Gaskets for FlangesIn pipeline systems and equipment connections, flangegaskets are core components ensuring sealing performance. The rationality oftheir selection directly affects the safety, stability, and economy of systemoperation. Improper gasket selection may lea
Created on 09.26
Shanghai RAIDO Sales Department Team-Building Activity: Handmaking Mid-Autumn Gifts for ClientsShanghai RAIDO Sales Department Team-Building Activity: Handmaking Mid-Autumn Gifts for Clients Shanghai RAIDO Sales Department Team-Building Activity: Handmaking Mid-Autumn Gifts for Clients Introduction: The Significance of Food Safety in Mooncake Gifting During the Mid-Autumn Festival The Mid-Autumn Festival, a cherished traditional Chin
Created on 09.12
Analysis of Filter Sealing Pain Points and Application Solution of Stainless Steel 316L Metal O-RingsAnalysis of Filter Sealing Pain Points and Application Solution of Stainless Steel 316L Metal O-RingsAnalysis of Melt filter Sealing Pain Pointsand Application Solution of Stainless Steel 316L Metal O-Rings As core equipment for fluid purification, melt filters arewidely used in water treatment, chemical engineering, food and pharmaceuticalindustrie
Created on 09.05
Metal Seals in Flame Detector Windows: Pain Point Analysis & Application Advantages in Extreme EnvironmentsMetal Seals in Flame Detector Windows: Pain Point Analysis & Application Advantages in Extreme EnvironmentsFlame detectors, especially high-endmodels for critical industries, rely heavily on **unobstructed opticalwindows** and **reliable sealing systems** to ensure accurate flamerecognition. In extreme environments, the sealing performance of the window d
Created on 08.27
Metal Sealing Rings: A Reliable Sealing Solution for Extreme Environments in the Pump and Valve IndustryMetal Sealing Rings: A Reliable Sealing Solution for Extreme Environments in the Pump and Valve IndustryIntroduction:The Core Role of Metal Sealing Rings in Pump and Valve Industry In numerous application scenarios of the pump andvalve industry, the quality of sealing performance is directly related to thesafe and stable operation, service life, and pr
Created on 08.20
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