high speed swivel union

High speed rotary joint is a fluid transmission sealing device designed specifically for high-speed working conditions. Its core function is to transport the medium (water, oil, gas, etc.)

high speed swivel union
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.

Three liquid one gas rotary joints

Three liquid one gas rotary joints

The "three liquid one gas" rotary joint belongs to a specific configuration form of multi-path fluid rotary connectors, usually referring to the integration of three independent liquid channels and one independent gas channel inside a compact joint housing

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Gap labyrinth rotary joints

Gap labyrinth rotary joints

Gap labyrinth rotary joint is a fluid transmission device that adopts non-contact sealing principle. It forms flow resistance through carefully designed multi-stage tortuous micro gaps between the rotating and stationary parts

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Machine tool spindle center water outlet  rotary joints

Machine tool spindle center water outlet rotary joints

The high-speed rotating joint at the center of the machine tool spindle is a key sealing device that accurately delivers static high-pressure coolant to the interior of the high-speed rotating spindle. Its core function is to achieve fluid leak free transmission at high speeds, directly cooling the cutting point of the tool. ‌‌

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High pressure direct hydraulic rotary joints

High pressure direct hydraulic rotary joints

High pressure direct hydraulic rotary joint is a precision mechanical sealing device used to transmit high-pressure fluid media (such as hydraulic oil, water, steam, etc.) between fixed pipelines and rotating equipment

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Rotating joints for vertical CNC hinge honing machine

Rotating joints for vertical CNC hinge honing machine

As a key equipment for precision hole machining, the core function of the vertical CNC hinge honing machine is to perform high-precision size correction and surface smoothness improvement on the inner hole of the workpiece through the composite action of rotation and reciprocating motion

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High speed and high-pressure vertical car fixture

High speed and high-pressure vertical car fixture

CNC vertical lathes, the clamping and releasing of automated fixtures usually rely on hydraulic or pneumatic system drive. Due to the need for high-speed rotation of the spindle while the external pipeline remains stationary, reliable transmission of fluid medium from the stationary part to the rotating part must be achieved through a rotary joint

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Oil cylinder matching rotary joint multi station rotary joints

Oil cylinder matching rotary joint multi station rotary joints

In industrial automation, heavy machinery, and precision machining equipment, hydraulic systems often need to achieve 360 ° continuous rotation or reciprocating swing, while delivering high-pressure fluid to multiple actuators (such as hydraulic cylinders). Traditional single channel rotary joints cannot meet the complex motion requirements

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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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