Classification of rotary joints
Classification of rotary joint
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.
The high-speed rotary joint of the expansion and contraction oil cylinder is a high-speed and high-pressure hydraulic sealing transmission component specially designed for the expansion and contraction hydraulic cylinder of metallurgical coiling/uncoiling machines
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HS-G rotary joint is a bidirectional inner tube fixed high-speed cooling water rotary joint, which adopts a balanced seal and rolling bearing support structure
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Hydraulic rotary joint is the core sealing component that connects fixed pipelines and rotating equipment. It can stably transmit hydraulic medium in a 360 ° continuous rotation state, avoiding pipeline entanglement and knotting. It is a key device for dynamic oil supply in hydraulic systems.
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The RXB rotary joint is a high-frequency universal mechanical seal device designed specifically for the pharmaceutical, lithium battery, semiconductor, and photovoltaic industries, supporting online sealing and intermittent dry operation.
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SK type high-temperature heat transfer oil rotary joint is a spherical sealed mechanical connection device designed specifically for heat transfer oil media. The core adopts dual carbon graphite oil-free bearings with automatic centering and convex spherical multi spring compensation sealing structure
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A 90 degree flange elbow is a detachable metal pipe fitting with a flange connection structure at both ends, used for pipeline systems to achieve a 90 degree turn, with both flow direction change and convenient disassembly and assembly functions.
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HS-G type rotary joint is an industrial dynamic sealing device with bi-directional flow, fixed inner pipe, and threaded connection, designed to efficiently transport fluids (water, air, saline water, etc.) from fixed pipes to rotating rollers and reflux
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The elbow rotary joint is a pipeline connection device that combines flow direction change (elbow function) and relative rotation sealing transmission (rotary joint function), used to transport fluid from a fixed pipeline without leakage to the equipment end that needs to swing or rotate.
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High temperature rotary joint is a dynamic sealing connection device designed for transporting fluid media from static pipelines to rotating equipment without leakage under high temperature conditions of 300 ℃ -450 ℃. The core of this device lies in high-temperature resistant sealing materials and thermal compensation structures.
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The flange stainless steel rotary joint is a specialized mechanical sealing device made of stainless steel material, with flange connections at both ends, to achieve fluid sealing transmission between static pipelines and rotating equipment. Its core function is to prevent leakage and transport of media under 360 ° rotation
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Stainless steel rotary joint is a key industrial fluid dynamic sealing device, mainly used to transport media such as water, steam, oil, gas, etc. from fixed pipelines to rotating or swinging equipment. Its core feature is that the main structure is made of stainless steel material (such as 304, 316L, etc.), which has excellent corrosion resistance, high temperature resistance, and mechanical strength
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The high-speed rotary joint of a centrifugal pump is a fluid dynamic sealing device designed specifically for high-speed centrifugal pumps (usually>3000rpm). Its core function is to deliver the medium in the fixed pipeline to the high-speed rotating pump shaft or impeller system without 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.
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