High Speed Spindle Coolant Rotary Union Aluminum Alloy Rotary Joint for CNC Machining Center
Product Spotlights
High Speed Spindle Coolant Rotary Union is a precision-engineered component designed for modern CNC machining centers that demand reliable coolant delivery at high rotational speeds. Manufactured by Hebei Speed Torque Transmission Technology Co., Ltd., a ISO9001 certified company with over 101-200 skilled employees and a factory spanning 3,000-5,000 square meters, our rotary joint ensures efficient heat dissipation and extended spindle life. With annual export value reaching US$5-10 million and serving markets across North America, Europe, Asia, and beyond, we bring years of expertise in rotary union technology. This aluminum alloy rotary joint offers a perfect balance of lightweight durability and corrosion resistance, making it an ideal choice for high-speed machining applications.
Key Features & Technical Specifications
- High-Speed Performance: Designed to operate at speeds up to 20,000 RPM (customizable options available upon request) without leakage, ensuring uninterrupted coolant flow during rapid spindle rotations.
- Premium Aluminum Alloy Construction: The body is made from high-grade aluminum alloy, offering excellent thermal conductivity and reduced inertia, which minimizes load on the spindle.
- Multiple Port Configurations: Available in 1, 2, or 3-channel designs to accommodate various coolant, mist, or air supply requirements.
- Leak-Proof Sealing Technology: Utilizes advanced mechanical seals (NBR, Viton, or customized materials) that provide long service life and low friction under high pressure.
- Corrosion & Wear Resistance: All exposed surfaces are treated with anti-corrosion coatings for long-term reliability in harsh coolant environments.
- Easy Integration: Standard thread connections (e.g., G1/4, G1/2) or flange mounting options simplify installation on most CNC spindles.
| Parameter | Specification |
|---|---|
| Max Speed | 20,000 RPM (customizable up to 30,000 RPM) |
| Max Pressure | 15 bar (optional 30 bar) |
| Temperature Range | -20°C to +120°C |
| Media | Coolant, Cutting Oil, Emulsion, Air |
| Housing Material | Aluminum Alloy (A6061 or equivalent) |
| Seal Material | NBR (standard), Viton (optional) |
| Connection Thread | G1/4, G1/2, NPT etc. (customizable) |
| Weight | Approx. 0.5–1.5 kg depending on size |
Benefits for Your CNC Machining Center
- Extended Spindle Life: By efficiently removing heat from the spindle zone, this rotary union prevents thermal deformation and premature bearing wear.
- Improved Machining Accuracy: Consistent coolant flow reduces temperature fluctuations, leading to better dimensional stability of workpieces.
- Reduced Downtime: Robust sealing design minimizes leakage and maintenance intervals, keeping your production running.
- Energy Saving: Lightweight construction reduces rotational inertia, lowering power consumption for spindle acceleration.
- Versatility: Compatible with both water-based coolants and oil-based cutting fluids; multiple port options available.
Trust & Reliability
Hebei Speed Torque Transmission Technology Co., Ltd. has been dedicated to rotary joints since 2017, with a factory size of 3,000-5,000 square meters and a team of 101-200 experienced professionals. Our products are exported to over 10 major global markets including North America, South America, Europe, and Southeast Asia, generating annual export revenue of US$5-10 million. We hold ISO9001 certification, ensuring every rotary union undergoes strict quality control from raw material to final assembly. Our ports of shipment (Shanghai, Tianjin, Qingdao) guarantee efficient logistics worldwide. With a strong focus on continuous improvement and customer satisfaction, we are your reliable partner for high-speed spindle coolant solutions.
Frequently Asked Questions (FAQ)
-
Q: What is the maximum operating speed of this rotary union?
A: The standard design supports up to 20,000 RPM. For higher speeds (e.g., 30,000 RPM), please contact us for a customized solution. -
Q: Can this rotary union handle oil-based coolants?
A: Yes, it works with both water-based emulsions and pure cutting oils. For aggressive chemicals, we recommend Viton seals (available upon request). -
Q: What thread connections are available?
A: Common options include G1/4, G1/2, and NPT threads. Custom sizes and flange types can be manufactured per your requirements. -
Q: How do I choose the number of passages (1,2,3 channels)?
A: It depends on your application. A single channel is typical for coolant only; dual channels can supply coolant and air; three channels allow mixed media. Our sales team can help select based on your spindle details. -
Q: Is the rotary union maintenance-free?
A: The seal is designed for long life, but periodic inspection and replacement of seals (typically after 1000-2000 hours) is recommended. Detailed maintenance guidelines are provided with the product. -
Q: Do you provide samples for testing?
A: Yes, we can send samples for evaluation. Please contact us with your specific requirements and we will arrange accordingly. -
Q: What is the typical lead time?
A: For standard models, lead time is around 7-15 days. Customized orders may take 20-30 days. We also offer expedited shipping upon request. -
Q: How do I ensure the correct mounting orientation?
A: The rotary union can be mounted in any orientation, but proper support and alignment are crucial. Our installation manual includes detailed instructions to avoid misalignment.
Ready to optimize your CNC spindle cooling? Contact Hebei Speed Torque Transmission Technology Co., Ltd. today for a competitive quote and expert support. With our proven track record and commitment to quality, we deliver rotary joints that keep your machines running at peak performance.
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