High-Speed Rotary Joint with Through-Spindle Coolant for CNC
Through-spindle coolant or MQL for CNC machining centers
Overview
Built for CNC machining centers, this high-speed rotary joint delivers single-passage through-spindle coolant (TSC) or MQL oil mist right to the cutting edge — the two technologies that make deep-hole drilling, high-speed milling and unattended automated lines productive. A closed seal design keeps leakage off the machine table, which is why automation integrators specify it.
Inside, a silicon carbide balanced mechanical seal handles the duty cycles of 24/7 machining, while the full-flow waterway prevents the chip packing and clogging that plague restricted-flow joints. Rated 10 MPa / 100 °C, with speeds up to 10,000 rpm in MQL service. Coolant and oil-mist versions share the same compact envelope for easy retrofitting.
Selection is straightforward: match the spindle interface and connection size (see the connection drawing in the image gallery), then confirm pressure, medium and speed. Send the nameplate photo plus mounting and connection dimensions and we confirm compatibility within 24 hours — including the MQL nozzle-fit questions that often decide the job.
Priced at $40–200 FOB depending on specification — typically a fraction of the imported joint it replaces. Standard models ship in 3–15 days after order confirmation, minimum order 1 unit; large-volume orders may need longer, with the exact schedule confirmed in the quotation. Manufactured in our 10,000 m² ISO 9001:2015 plant and exported to 70+ countries.
Images & Dimension Drawings
Key Features
- Through-spindle coolant or MQL support
- Closed seal design for automated lines
- Full-flow design prevents clogging
- SiC balanced mechanical seal
Typical Applications
Operating Conditions
| Media | Coolant, MQL (oil mist) |
|---|---|
| Max Pressure | 10 MPa |
| Max Temperature | 100°C |
| Speed Range | Up to 10,000 rpm (MQL) |
Frequently Asked Questions
1 Does this CNC rotary joint support through-spindle coolant (TSC) and MQL?
2 What are the operating limits of the high-speed CNC rotary joint?
3 How do I confirm this joint fits my CNC spindle?
4 What are the price, lead time and MOQ for the CNC rotary joint?
Send Us Your Drawing or Duty Conditions
Tell us the medium, temperature, pressure, speed and connection size. Our engineers reply with a selection or a custom proposal — usually within one working day.