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.

Sanitary grade pipeline rotary joints

Sanitary grade pipeline rotary joints

Sanitary grade pipeline rotary joints and quick change clamp rotary joints are two key components. The former solves the problem of dynamic rotary sealing, while the latter provides static or semi dynamic quick disassembly and assembly connections

detail
1890-060 Winder Slitting Machine Rotary Joints

1890-060 Winder Slitting Machine Rotary Joints

The dual channel universal hydraulic 1890-060 rewinder slitting machine rotary joint is particularly suitable for rotating equipment that requires simultaneous input and output of two different media (such as hydraulic oil inlet and outlet, coolant circulation, etc.)

detail
Hydraulic oil pressure high-speed rotary joints

Hydraulic oil pressure high-speed rotary joints

A dual channel hydraulic oil pressure high-speed rotary joint is a mechanical sealing device used to transfer two different fluid media (usually two independent hydraulic oil circuits, or one oil and one water/air) from a stationary pipeline to a rotating component

detail
Pneumatic rotary joint through-hole slip rings

Pneumatic rotary joint through-hole slip rings

Pneumatic rotary joint through-hole slip rings are integrated hollow rotary connection components combining pneumatic transmission and slip ring signal conduction. Featuring central through-hole design, low-resistance smooth rotation, reliable gas sealing and stable signal transmission, these composite slip ring rotary joints realize synchronous non-interfering delivery of pneumatic media and control signals, meeting multi-functional connection demands of rotating automated equipment.

detail
555-385-765 high-speed rotary joints

555-385-765 high-speed rotary joints

555-385-765 is a high-performance high-speed rotary joint, belonging to the 555 series universal product. This model is designed to meet the requirements of high-speed and high-precision fluid transmission, and is widely used in industrial fields that require extremely high sealing and stability

detail
1101-632-343 high-speed swivel unions

1101-632-343 high-speed swivel unions

1101-632-343 high-speed rotary joint is designed for high-precision and high-speed working conditions, mainly used to transport coolant or micro lubricating (MQL) media from stationary pipelines to rotating components

detail
Hydraulic rotary joints of unwinding machine

Hydraulic rotary joints of unwinding machine

The hydraulic swivel joint of the uncoiler is a key fluid transmission component in metallurgical, steel processing, and coil processing production lines. It is mainly used to transfer hydraulic oil and other media from fixed pipeline systems to rotating or swinging equipment components, achieving continuous transmission and sealing of hydraulic power

detail
4-in-4 pneumatic swivel unions

4-in-4 pneumatic swivel unions

4-in-4 pneumatic rotary joint (also known as slip ring or multi-channel rotary joint) is a precision mechanical device used to transmit compressed air, vacuum, or other gas media between fixed and rotating components

detail
3-in-3 pneumatic swivel union

3-in-3 pneumatic swivel union

3-In-3-Out Pneumatic Rotary Joint is a precision mechanical sealing device specifically designed to solve the problem of multi-path gas transmission between rotating components and fixed gas sources

detail
2-in-1 pneumatic rotary joints

2-in-1 pneumatic rotary joints

2-in-1/2-in-1 pneumatic rotary joint (also known as slip ring or rotary joint) is a precision sealing device used to transfer compressed air or other gas media from a stationary pipeline to a 360 degree continuous rotating component

detail
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.

Ready to Request?

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