Classification of rotary joints

Product

Classification of rotary joint

Product
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.

Hydraulic oil film sealed high-speed rotary joints

Hydraulic oil film sealed high-speed rotary joints

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.

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B10-1609-02E rotary joints

B10-1609-02E rotary joints

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

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GAT gap  seal M25EX2-0

GAT gap seal M25EX2-0

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

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GAT gap seal 2-path high-speed rotary joints

GAT gap seal 2-path high-speed rotary joints

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

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RIX ESX20M-T detachable high-speed rotary joints

RIX ESX20M-T detachable high-speed rotary joints

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)

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SKT detachable high-speed center outlet rotary joints

SKT detachable high-speed center outlet rotary joints

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

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SKT rotary joints

SKT rotary joints

SKT rotary joints are designed to solve the sealing problem of transferring media (such as cutting fluid, hydraulic oil, compressed air, etc.) from fixed pipelines to rotating components. Its core advantage lies in its ability to maintain stable sealing performance at extremely high speeds and pressures, while also having a long service life and low maintenance costs

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SRJ01-201 rotary joints

SRJ01-201 rotary joints

The SRJ01-2001 series high-speed rotary joint is a precision fluid sealing component designed specifically for the Through Spring Cooling (TSC) system of CNC machine tool spindle centers. This series of products aims to directly replace the same specification rotary joints of South Korean SKT (Shin Kwang Tech) brand, and are widely used in equipment such as machining centers, CNC lathes, and high-precision milling machines

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SRJ02-101 rotary joints

SRJ02-101 rotary joints

The SRJ02-101 series Rotary Union is a core fluid transfer component designed specifically for CNC machine tools, machining centers, and turning centers. This series of products is mainly used to achieve stable delivery of coolant, cutting oil or compressed air from static pipelines to the interior of high-speed rotating spindles, commonly known as the "center water outlet" or "internal cooling" function

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SRJ03-101 high-speed rotary joints

SRJ03-101 high-speed rotary joints

SRJ03-101 high-speed rotary joint is a fluid connection device designed specifically for high-speed working conditions, mainly used to transport media such as coolant and compressed air from fixed pipelines to rotating equipment. This model of product usually has a dual path design, which can realize the input and output of media, and is widely used in CNC machine tools, machining centers, and various industrial scenarios that require high-speed rotation for heat dissipation or power transmission

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SRJ02-103 rotary joints

SRJ02-103 rotary joints

Resolve typical CNC spindle problems including dry-run seal failure, fluid blockage and high-speed rotation leakage. SRJ02-103 rotary joints adopt optimized flow path design and reinforced friction pairs, effectively cutting maintenance frequency, reducing equipment downtime and sustaining consistent machining precision.

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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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