rotary joints

Rotary Joint

swivel union is a fluid dynamic sealing device that transports fluid medium from a fixed pipeline to a pipeline or equipment that rotates or swings at a certain angle. Its core function is to establish a reliable connection between the stationary supply channel and the dynamically rotating components, achieving 360° continuous and leak-free transmission of various media such as gas, liquid, and oil

Rotary Joint
Precision Rotary Joints & Unions for Industrial Fluid Transfer

Choose any application — steam, water, oil, air, or chemical — and we’ll engineer the perfect rotary joint solution for you.

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.

Rotary joint for corrugated paper machine

Rotary joint for corrugated paper machine

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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Rotating joints for semiconductor ECD equipment

Rotating joints for semiconductor ECD equipment

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

Semiconductor cutting machine high-speed rotary joints

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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Semiconductor CMP wafer polishing dedicated rotary joints

Semiconductor CMP wafer polishing dedicated rotary joints

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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1108-844-835 swivel unions

1108-844-835 swivel unions

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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304 high-speed rotary joints

304 high-speed rotary joints

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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SC-O type thermal oil rotary joints

SC-O type thermal oil rotary joints

Industrial-grade SC-O type thermal oil rotary joints with reliable high-temperature durability and stable thermal medium transmission capability. Widely applied in drying equipment, heating rollers, thermal forming machinery and industrial heat circulation systems that require continuous thermal oil delivery and rotary operation.

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1109-840-835 high-speed swivel unions

1109-840-835 high-speed swivel unions

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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1109-842-730 swivel unions

1109-842-730 swivel unions

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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1109-929-930 high-speed rotary joints

1109-929-930 high-speed rotary joints

1109-929-930 high-speed rotary joints are specialized precision rotary connection components for industrial high-cycle fluid and pneumatic systems. Featuring ultra-low torque rotation, high dynamic balance performance, wear-resistant sealing structure and stable pressure resistance, this dedicated model maintains continuous leak-free operation under long-term high-speed rotation, ensuring efficient and reliable medium transmission for automated high-speed rotating equipment.

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Why SD-SWIVELES

Precision Rotary Joints · Quality Driven Innovation

From 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.

Precision Machining · Micron Tolerances

High-precision CNC machining centers with micron-level tolerances ensure rotational stability and seal integrity, even at high speeds and demanding operating conditions.

High-Performance Materials · Corrosion Resistant

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.

Advanced Sealing · Low Leakage · Long Life

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.

Engineering Experts · Custom Solutions

20+ years of rotary joint engineering experience — offering customized design, sizing guidance, material selection, and on-site technical support for your specific application.

Production Excellence

Production Excellence & Quality Assurance

SDSWIVELES integrates 20 years of engineering experience with German-inspired quality management systems to form a standardized production process for precision rotary joints.

Standardized Production Process

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.

Independent Quality Inspection

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.

Batch Consistency & Reliability

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.

Tailored Solutions

Solutions for Every Industry & Application

In the dynamic world of industrial manufacturing, every operation faces unique challenges. At SDSWIVELES, we tailor our engineering expertise to empower your success.

Established Manufacturers

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.

OEM & Machine Builders

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.

Startups & New Ventures

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.

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