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


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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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.

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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.
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Company dynamics
Sealing knowledge
Types of Rubber Vulcanization SystemsTypes of Rubber Vulcanization SystemsVulcanization is a critical process that transforms raw rubber froma soft, plastic material into a tough, elastic one by forming cross-linksbetween polymer chains. The choice of vulcanization system directly impactsrubber performance (e.g., elasticit
Created on 07.23
Application of Stainless Steel 316L Hollow O-Rings in Melt FiltersApplication of Stainless Steel 316L Hollow O-Rings in Melt FiltersStainless steel 316L hollow O-rings play a critical sealing role in melt filters, a type of equipment designed to remove impurities from high-temperature, high-pressure molten materials (such as plastic, chemical fiber, or rubber melts). Their unique
Created on 07.17
Revealing the uniqueness of PTFE sealingRevealing the uniqueness of PTFE sealingWhat makes PTFEseals so unique? Let's find out! 🤔​ 🌟 ChemicalInertness: PTFE seals can resist almost all chemicals, including strong acids,bases, solvents, and oxidants. This makes them ideal for use in extremechemical environments, such as the chemi
Created on 07.10
Newly Purchased Vacuum Vulcanizer Put into Use, Boosting Rubber Manufacturing to New HeightsNewly Purchased Vacuum Vulcanizer Put into Use, Boosting Rubber Manufacturing to New HeightsRecently, Shanghai Raido has reached a new milestone in its development as the newly purchased vacuum vulcanizer was officially put into use. The introduction of this advanced equipment marks a significant improvement in the company's technical stren
Created on 07.02
Sealing Performance Analysis of Tetrafluoro Rubber Composite Clamp Gaskets from Different Industry PerspectivesSealing Performance Analysis of Tetrafluoro Rubber Composite Clamp Gaskets from Different Industry Perspectives1. Introduction Tetrafluoro rubber composite clamp gaskets play a crucial role in the sealing processes of numerous industries, owing to their unique material combination and structural design. The integration of the chemical stability and low fricti
Created on 06.03
Unlock a New Realm of High - end Sealing in Biomedicine! Shanghai Raido's Spring - Reinforced Metal C - shaped Sealing Rings Reshape the Reliability of Medical EquipmentUnlock a New Realm of High - end Sealing in Biomedicine! Shanghai Raido's Spring - Reinforced Metal C - shaped Sealing Rings Reshape the Reliability of Medical EquipmentIn the field of biomedicine, every precise operation of high - end medical equipment is crucial to patients' life, health, and treatment effects. Shanghai Raido's painstakingly developed spring - reinforced metal C - shaped sealing rings (gold/silver
Created on 05.23
Raido metal sealing rings Revolutionize Marine Engines and Lead the Innovation Trend of Marine Propulsion SystemsRaido metal sealing rings Revolutionize Marine Engines and Lead the Innovation Trend of Marine Propulsion SystemsRaido metal sealing rings Revolutionize Marine Engines and Lead the Innovation Trend of Marine Propulsion Systems In the context of the global shipping industry's continuous pursuit of efficiency, stability, and environmental protection, the technolo
Created on 05.15
Labor Day Holiday NoticeLabor Day Holiday NoticeShanghai Raido Machinery & Technology Co.,Ltd Labor Day Holiday Notice To: All Employees, Clients, and Partners From: Management Team Date: 2025/4/29 Dear All, In accordance with China's national holiday arrangements and company policies, Shanghai Ra
Created on 04.29
10,000Pcs metal hollow O - rings are ready to set off for customer sites!10,000Pcs metal hollow O - rings are ready to set off for customer sites!From Shanghai Raido Mechanical Technology Co., Ltd., 10,000 metal hollow O - rings are ready to set off for customer sites! ​ These metal hollow O - rings are the crystallization of our advanced technology and strict quality control. With excellent s
Created on 04.29
Advanced Technologies and Applications of Metal Seals for Diesel EnginesAdvanced Technologies and Applications of Metal Seals for Diesel EnginesAdvanced Technologies and Applications of Metal Seals for Diesel Engines Abstract: This paper comprehensively analyzes the advanced technologies and applications of metal seals for diesel engines. It elaborates on the design features, performance cha
Created on 04.29
Racetrack-Shaped Spring-Energized Metal C-Ring SealRacetrack-Shaped Spring-Energized Metal C-Ring SealRacetrack-Shaped Spring-Energized Metal C-Ring Seal Accurate achievement of trust, quality escorts health. Raido track shaped spring metal C-ring seal, tailored for high-end medical CT equipment with gold/silver plating process. Excellent sealing per
Created on 04.27
Metal Hollow O - Rings: The Ideal Sealing Solution for Hot Runner SystemsMetal Hollow O - Rings: The Ideal Sealing Solution for Hot Runner SystemsIn the realm of modern plastic and chemical fiber manufacturing, hot runner systems play a pivotal role. These systems require highly reliable sealing components to ensure smooth operation, and our metal hollow O - rings are the perfect fit.​ Excepti
Created on 04.09
Superior Spring-Enhanced Metal C-Rings for Gas Turbines: Unmatched Durability, Custom Fit, and Reliable SealingSuperior Spring-Enhanced Metal C-Rings for Gas Turbines: Unmatched Durability, Custom Fit, and Reliable SealingUnlock Optimal Gas Turbine Performance with Our Spring-Enhanced Metal C-Rings When it comes to critical sealing solutions for gas turbines, reliability and performance are non-negotiable. That’s why industries worldwide trust our spring-enhanced meta
Created on 03.24
Enhancing Reliability of Subsea Hydraulic Systems: Metal Seal Solutions for Extending Coupling Service LifeEnhancing Reliability of Subsea Hydraulic Systems: Metal Seal Solutions for Extending Coupling Service LifeOur Client specializes in designing and manufacturing advanced hydraulic distribution systems for offshore energy applications, supplying critical components that control subsea production systems worldwide. Their expertise ensures efficient and safe
Created on 03.19
Next-Gen  718 Metal Hollow O-Rings: Powering Reliability in Solid Oxide Fuel Cell Systems with Ultra-Low Leakage and High-Temperature PerformanceNext-Gen  718 Metal Hollow O-Rings: Powering Reliability in Solid Oxide Fuel Cell Systems with Ultra-Low Leakage and High-Temperature PerformanceUnlocking Efficiency and Durability for Solid Oxide Fuel CellsIn the rapidly evolving landscape of clean energy, solid oxide fuel cells (SOFCs) stand at the forefront of innovation, offering high efficiency and low emissions. However, their performan
Created on 03.19
Next-Gen Multi-Seal Germanium-Plated 316L Stainless Steel V-Rings: Redefining Heavy-Duty Truck Exhaust PerformanceNext-Gen Multi-Seal Germanium-Plated 316L Stainless Steel V-Rings: Redefining Heavy-Duty Truck Exhaust PerformanceUnlocking Unmatched Durability and Efficiency for Heavy-Duty FleetsIn the demanding realm of heavy-duty trucking, where engines operate under extreme heat, pressure, and vibration, exhaust system integrity is non-negotiable. Introducing the Multi-Sea
Created on 03.16
How to Choose the Right Material for Metal Hollow O-Rings?How to Choose the Right Material for Metal Hollow O-Rings?Choosing the right material for your Metal Hollow O-Rings can make all the difference! Here's a breakdown of our top materials and their applications: 🔥 Inconel 718 & 750: High-temp heroes for aerospace and gas turbines (up to 700°C/1382°F). ⚙️ 304 &
Created on 03.03
How to Choose the Right Metal Hollow O-Ring for Your ProjectHow to Choose the Right Metal Hollow O-Ring for Your ProjectIn the world of industrial applications, a well - functioning seal is often the linchpin of a successful project. Metal hollow O - rings, with their unique properties, play a crucial role in ensuring reliable sealing in a variety of demanding environ
Created on 03.02
Enterprise Relocation AnnouncementEnterprise Relocation Announcement
Created on 02.28

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