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.
Rotary joints, also known as rotary joints or hydraulic slip rings, are critical fluid dynamic sealing devices used in machine tool fixtures. Its core function is to efficiently and leak free transport of fluid media (such as hydraulic oil, coolant, compressed air, etc.) from stationary pipelines to rotating or reciprocating machine tool fixture components
detail
Clearance Seal Rotary Joint is a special type of fluid dynamic sealing device that belongs to non-contact sealing structure. It is mainly used in industrial scenarios with high speed, high pressure, and strict requirements for friction resistance, such as high-end machine tools, metallurgical equipment, and automated production lines Vertical fixture rotary joint is a type of rotary joint specifically designed for medium to high speed and high voltage multi-channel equipment
detail
The specialized rotary joint for machine tool fixtures is a key fluid dynamic sealing device, mainly used to transport media such as coolant, hydraulic oil, or compressed air from fixed pipelines to rotating or swinging fixture components during machine tool processing
detail
An oil pressure rotary diverter valve (usually referring to a rotary diverter valve or rotary distributor in hydraulic/pneumatic systems) is a precision control device used to convert fluid pressure energy from a single oil or gas source into mechanical motion and distribute it to multiple actuators in a specific order or proportion
detail
High speed rotating joints of expansion and contraction oil cylinder. Adaptive telescopic design, leak-proof and high-stability performance ensures reliable hydraulic transmission for industrial telescopic oil cylinder rotating systems.
detail
Hydraulic oil film sealed high-speed rotary joints are advanced non-contact precision fluid connectors designed for high-speed and high-pressure industrial rotating equipment. Featuring dynamic oil film sealing technology, ultra-low friction coefficient, zero wear operation and excellent rotational stability, these professional rotary joints achieve continuous leak-free hydraulic medium transmission for long-cycle heavy-duty industrial operation.
detail
B10-1609-02E is a center outlet high-speed rotary joint designed specifically for deep hole drilling and high-precision machining. This model usually belongs to the Italian ROTOFLUX brand series and is a key sealing component in industrial fluid transmission systems. Its core function is to stably and leak free transport coolant, hydraulic oil, or compressed air from a stationary pipeline to the rotating tool or workpiece during high-speed spindle rotation, achieving efficient cooling and chip removal
detail
GAT M25EX2-0 rotary joint is a high-performance single channel rotary joint designed specifically for high-pressure, high-speed, and harsh industrial environments. This model belongs to GAT ROTOSTAT ® The series adopts advanced gap oil film sealing technology or high-precision mechanical sealing structure, aiming to achieve zero leakage, low friction torque, and long service life operation
detail
GAT gap sealed 2-path rotary joint enjoys a high reputation in the high-end mechanical manufacturing field. GAT's gap sealed dual path (2-path) high-speed rotary joint represents the top technological level in the field of mechanical engineering, which has strict requirements for high-speed, high-pressure, and multi-media transmission in application scenarios
detail
M80EX2-0 rotary joint is a high-performance fluid transmission component designed specifically for high load conditions in the industrial field. It is mainly used in equipment such as coilers, centrifuges, wind turbines, and hydraulic workstations
detail
The ESX20M-T series is a representative model of RIX miniaturized rotary joints, specially optimized for machine tool spindles with limited space and the need for high-speed operation. Its core feature lies in the design logic of the "detachable" or "non-contact" sealing structure (under specific working conditions)
detail
SKT detachable high-speed center water outlet rotary joint is a fluid transmission component designed specifically for modern high-precision CNC machine tool spindles. It mainly solves the technical problem of stably transporting cutting fluid, hydraulic oil and other media from stationary pipelines to rotating parts in extremely high speed and high pressure 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.
Request a Free Sample