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.
EATON Airflex Rotorseals is a multi-channel fluid sealed joint designed specifically for rotating shaft ends, used to transfer pressurized gas or liquid from fixed pipelines to rotating components without damage. Its core services include clutch/brake control, shaft lubrication, and cooling circulation systems
detail
XHDS type high-temperature water rotary joint adopts a brand new appearance, mechanical seal combination, and durable ball milled cast iron made of spherical graphite, which has high strength and flexibility, improving the mechanical properties of cast iron
detail
The DS50 high-temperature rotary joint is equipped with precision sealing and durable ball milled cast iron made of spherical graphite, which has high strength and flexibility, improving the mechanical properties of cast iron
detail
Universal copper pipe joint is a metal connection device that combines mechanical transmission flexibility and fluid transmission sealing, mainly used in pipelines and mechanical systems that require multi angle adjustment and compensation for axial or radial displacement
detail
H-type rotary joint, also known as cooling water rotary joint or water rotary joint, is a fluid transmission sealing device designed specifically for industrial cooling systems
detail
The high-temperature, high-pressure, and high-speed rotary joint for cooling water is a fluid sealed transmission device designed specifically for extreme working conditions (high speed, high pressure, high temperature difference)
detail
257-130-012 is the specific model of the "257 series" high-speed rotary joint from the United States, designed specifically for high-speed working conditions such as deep hole drilling. It adopts a single channel self-supporting structure and is used to transport coolant/medium from fixed pipelines to high-speed rotating spindles
detail
962-800 is a single channel pneumatic/coolant rotary joint, characterized by the use of Pop Off technology ® Disconnect sealing technology, M16 × 1.5 left-hand threaded connection, and support high-speed "dry operation".
detail
1005-000-037 rotary joint is a single channel self-supporting pneumatic/hydraulic rotary joint designed for medium transmission of air or low viscosity hydraulic oil in medium to low speed and narrow space conditions. It adopts balanced mechanical seals and lifelong lubrication bearings, and can be installed without external brackets.
detail
1101-202-651 belongs to the 1101 series single channel closed sealed rotary joint, which is dedicated to the cooling liquid/MQL transportation of high-speed machine tool spindles and deep hole drilling machines. It adopts silicon carbide mechanical seal and 3/8 "NPT internal pipe thread+5/8" -18WWF external thread connection design
detail
SQW8 electric rotary joint is a precision mechanical component that integrates fluid transmission and power/signal transmission. It is designed for automation equipment that requires 360 degree continuous rotation and simultaneous transportation of multiple media (such as water, coolant, compressed air, etc.) and electrical signals
detail
Pneumatic rotary joint is a fluid dynamic sealing device that transfers gas medium from a stationary pipeline to a 360 ° rotating equipment without damage, and its core solution is to solve the problems of gas pipe winding and leakage
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.
Request a Free Sample