rotary joints
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
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.
Professional machining center water outlet rotary joints with precision structure and wear-resistant seals. Adapt to high-frequency continuous operation, ideal for CNC milling, drilling and automated machining cooling equipment.
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What is a machining center water outlet rotary joint? Learn how spindle rotary unions deliver through-tool coolant, improve chip removal and extend tool life for high-speed CNC machining.
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Shop durable direct hydraulic oil rotary joints for high pressure cleaning machines. Designed for straight-through hydraulic transmission, these rotary unions deliver stable pressure resistance, low leakage and consistent performance for cleaning equipment.
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Professional customized rotary joints tailored for special industrial needs. Available in high-pressure, high-speed, high-temperature and large-caliber custom specifications, applicable to various machinery production lines.
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Explore K series high-speed and high-pressure rotary joints, built with premium wear-resistant seals and sturdy structures. Offering stable rotary transmission, excellent pressure resistance and long service life for heavy-duty industrial applications.
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Learn about RMH series high-voltage high-speed rotary joints, professionally designed for high pressure and high rotation speed working conditions. Featuring wear resistance, tight sealing and stable performance for precision industrial fluid delivery.
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DGR straight through rotary unions are engineered with full through-hole structure, supporting high-flow water, oil and gas transmission. Ideal for industrial cooling, cleaning and general fluid conveying equipment.
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Learn about professional rotary unions for rubber vulcanize processes. High-temperature resistant, leak-proof rotary unions ensure stable steam and thermal oil circulation for vulcanizing machines and rubber molding equipment.
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Learn about AOG thermal oil rotary joints, engineered for high-temperature thermal oil circulation. Featuring high heat resistance, anti-leakage performance and stable operation for industrial heating and thermal processing systems.
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Learn about MSE04R06 semiconductor rotary joints, featuring ultra-low torque, particle-free sealing and cleanroom-grade purity. Designed for precision wafer processing, vacuum and ultra-pure fluid transmission in semiconductor manufacturing.
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Learn about A07 type semiconductor rotary joints, featuring cleanroom-grade design, zero-particle pollution and high-precision operation. Ideal for wafer processing, etching and thin film deposition in semiconductor manufacturing.
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ML02R008F semiconductor rotary joint is a precision 2-channel swivel union for wafer processing equipment. Featuring ultra-low torque, minimal leakage and low temperature rise, it ensures clean, stable vacuum and gas transmission during continuous 360° rotation for semiconductor precision manufacturing.
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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