The classification of swivel unions includes: water type, steam type, oil type, pneumatic type, special medium type, and so on
Swivel Unions is a fluid dynamic sealing connection device, whose core function is to transport media (liquids, gases, steam, etc.) from fixed pipelines to equipment that rotates or swings continuously 360 ° without leakage.
Below are our most trusted rotary joint series, available for standard or custom-engineered orders. As a manufacturer specializing in precision rotary sealing technology, SD SWIVELES Engineering Co., Ltd. brings together a dedicated team of certified mechanical engineers, application specialists, and production experts, each with decades of hands-on experience in the R&D of fluid transfer systems for paper, steel, rubber, plastic, and chemical processing industries.
1108-019-212 is a "closed seal" rotary joint of the 1108 series. This series of products is designed specifically for continuous coolant applications, especially suitable for automated production lines and similar industrial scenarios that require high speed, high precision, and water-based coolant or micro lubrication (MQL/oil mist) as the medium
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Rotary joints for corrugated paper machines are professional high-temperature and high-speed rotary connection components tailored for corrugated board production lines. Designed for continuous steam and hot water circulation, these durable rotary joints feature stable high-temperature resistance, low-leakage sealing and smooth continuous rotation, ensuring consistent heating for corrugating rollers, single facers and drying sections to maintain stable paper forming and high-speed production.
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Clean industrial-grade rotating joints dedicated for semiconductor ECD electrochemical deposition equipment. With excellent corrosion resistance, pollution-free transmission and high-cycle operational durability, they are widely used in wafer electroplating, thin-film deposition and semiconductor micro-processing precision fluid rotary delivery systems.
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Semiconductor cutting machine high-speed rotary joints are ultra-precision clean-grade rotary connection components designed for semiconductor wafer dicing and cutting equipment. Featuring ultra-low torque smooth rotation, micro-vibration control, dust-free sealing and stable high-cycle operation, these specialized rotary joints ensure consistent, clean transmission of cooling and cutting fluids, maintaining high cutting accuracy and zero-pollution processing for delicate semiconductor wafers and chips.
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High-purity cleanroom-grade rotary joints dedicated for semiconductor CMP wafer polishing equipment. With ultra-stable rotational performance, pollution-free transmission and high-cycle durability, they are widely used in semiconductor wafer polishing machines, precision chip processing and microelectronic industrial high-precision fluid delivery systems.
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Pneumatic 304 stainless steel high-speed rotary joint is an industrial sealing device dedicated to transporting compressed air and other gas media from fixed pipelines to rotating equipment
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The 1108-844-835 rotary joint belongs to its precision fluid transmission series, designed specifically to meet the stable transmission of coolant or micro lubricating (MQL) media in industrial applications
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Stainless steel 304 high-speed and high-pressure rotary union is a key industrial sealing device used for continuous and sealed transmission of fluid media (such as water, hydraulic oil, steam, gas, etc.) between fixed pipelines and rotating components
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Pneumatic High Speed Rotary Joint is a fluid dynamic sealing device specifically used to transport compressed air or other gas media from fixed pipelines to high-speed rotating equipment
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The 1109-840-835 rotary joint is designed specifically for machine tool spindle cooling and micro lubrication (MQL) applications, and belongs to the 1109 series "detachable" rotor rotary joint products
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The 1109-842-730 rotary joint is a high-performance high-speed rotary joint, belonging to the hole installation type center outlet joint in the 1109 series
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1121-269-851 rotary joint is a high-speed rotary joint designed specifically for high-precision and high-speed machining environments
detailFrom precision machining to seal testing, every step follows international standards (ISO 9001, CE, ATEX) — delivering reliable fluid transfer solutions for paper, steel, chemical, rubber, and plastics industries.
High-precision CNC machining centers with micron-level tolerances ensure rotational stability and seal integrity, even at high speeds and demanding operating conditions.
316L stainless steel, alloy steels, silicon carbide, and carbon graphite — selected for maximum corrosion resistance, wear resistance, and compatibility with steam, hot oil, water, and air.
Balanced seal design with silicon carbide/graphite seal rings delivers ultra-low leakage rates under high-temperature and high-pressure conditions, ensuring extended service life and reduced maintenance.
20+ years of rotary joint engineering experience — offering customized design, sizing guidance, material selection, and on-site technical support for your specific application.
SDSWIVELES integrates 20 years of engineering experience with German-inspired quality management systems to form a standardized production process for precision rotary joints.
Every rotary joint undergoes a documented manufacturing sequence: precision CNC machining, seal face lapping, assembly, and final inspection. Each unit is traceable with individual quality records and serialized documentation.
Our quality department operates with full independence and authority to halt production if standards are not met. Dimensional tolerances are verified to ±0.01mm, and all units are pressure-tested to 1.5x working pressure before shipment.
Triple validation: "dimensional reports + material certifications + performance test records." Product qualification rates remain stable above 99%, eliminating performance variations and ensuring long-term operational reliability.
In the dynamic world of industrial manufacturing, every operation faces unique challenges. At SDSWIVELES, we tailor our engineering expertise to empower your success.
We help you optimize existing equipment with upgraded rotary joint solutions that reduce downtime, improve energy efficiency, and lower maintenance costs. Whether you need to replace aging components, enhance performance while meeting stricter industry standards, or adapt to evolving production demands — we deliver solutions that keep your operations running.
Stand out in a competitive market with custom-engineered rotary joint solutions that integrate seamlessly with your equipment designs. We support custom connection configurations, material specifications, compact form factors, and performance validation — helping you deliver reliable machinery to your customers.
Turn your engineering concept into reliable, production-ready hardware with our end-to-end partnership. From application analysis, material selection, prototyping, manufacturing oversight, to compliance testing — we guide you through every step of your journey from idea to implementation.
Get expert guidance on the right formulation for your brand — standard or custom-engineered, with low MOQ and free sample support.
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