Are you looking for a reliable, cost-effective alternative to Rotoflux rotary joints? Our precision-engineered rotary unions offer 100% mechanical compatibility, superior seal longevity, and significant cost savings for your industrial applications.
The Rotoflux Rotary Union series is designed for closed-seal fluid delivery systems used in high-speed machine tools, automated production lines, and deep-hole drilling equipment. These rotary unions enable stable, continuous fluid transfer between stationary pipelines and rotating spindles, even under demanding operating conditions.
As a professional Chinese manufacturer of Rotoflux Rotary Union replacement products, we engineer our rotary unions to match original installation interfaces and performance requirements while offering improved availability and cost efficiency for global OEMs and end users.
This rotary union series adopts a fully enclosed sealing structure, making it particularly suitable for:
Automated production lines
CNC machine tools
High-speed spindles
Deep-hole drilling (gun drilling) machines
The closed-seal design prevents external contamination and ensures clean, reliable operation in precision machining environments.
The internal full-flow passage design allows fluid to pass smoothly through the rotary union without obstruction. As a result, the system:
Prevents clogging caused by chips, debris, or burrs
Maintains consistent flow rate
Reduces pressure loss
This design is especially beneficial for coolant and cutting fluid delivery systems in machine tools.
The rotary union features a bearing-supported construction with a threaded rotor, which simplifies installation and alignment. This structure:
Reduces installation time
Ensures accurate concentricity with the spindle
Enhances operational stability during continuous rotation
High-quality deep-groove radial ball bearings support smooth rotation and reliable performance at high speeds.
To protect internal bearings under harsh operating conditions, the rotary union incorporates:
Labyrinth sealing design
Large leakage ports to divert fluid away from bearings
This dual protection system prevents coolant or oil ingress into the bearing chamber, significantly extending bearing service life and improving long-term reliability.
The rotary union uses a balanced mechanical seal made of silicon carbide, providing:
Excellent wear resistance
Stable sealing under pressure fluctuations
Long service life even in severe working environments
This sealing technology ensures consistent performance in high-speed and high-load applications.
Key aluminum components undergo anti-corrosion anodizing treatment, enhancing resistance to coolant, cutting fluids, and industrial environments.
The rotary union can be equipped with high-pressure rotary seals, allowing operating pressures of up to 12 MPa, making it suitable for demanding coolant and lubrication systems.
As a leading manufacturer specializing in international brand replacements, we bridge the gap between high-end European performance and factory-direct pricing.
1:1 Drop-in Replacement: No piping modifications required. Our dimensions match Rotoflux standards exactly.
Advanced Sealing Technology: We use high-grade Silicon Carbide and Tungsten Carbide seals to ensure leak-free operation.
Precision Bearings: Equipped with dual high-speed ball bearings for low friction and extended service life.
Rapid Delivery: Large inventory of standard models (S, A, B, and F series) ready for global shipping.
| Specification | Details |
|---|---|
| Rotation Speed | Up to 3000 RPM |
| Pressure Rating | Up to 25 bar (363 psi) |
| Temperature Range | -20°C to +200°C (-4°F to +392°F) |
| Material | Stainless Steel, Brass, Aluminum |
| Connection Types | Threaded, Flanged, Quick Connect |
| Passage Options | Single, Dual, Multi-passage |
| Seal Type | Mechanical seals, PTFE seals |
We design and manufacture our replacement rotary unions to operate consistently in high-load, high-duty environments traditionally served by Rotoflux:
Every unit undergoes a 100% pressure and leakage test before leaving our facility. We understand that downtime is expensive, which is why our products are built to the same rigorous standards as European counterparts but at a fraction of the cost.
Pro-Tip: Don’t just take our word for it. Our rotary joints are currently used by Tier-1 manufacturers across Southeast Asia, Europe, and North America as the primary alternative to Rotoflux, Deublin, and Johnson-Fluiten.
Yes, it can handle various media, including hydraulic fluids, compressed air, and gases.
Yes, we offer NPT, BSP, metric, and custom threading options to suit your system requirements.
You should consider the number of passages, operating pressure, rotational speed, temperature range, and the type of fluid. Our team can help you select the best option.
Consider your flow requirements, pressure, rotational speed, and the number of media to be transferred. Refer to the product specifications or contact the manufacturer for further guidance.
Stop paying the “brand premium.” Get the same performance for a better price.
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THE WORLD'S LEADING ROTARY UNIONS MANUFACTURERS
