Machine tool spindle center water outlet rotary joints

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The high-speed rotating joint at the center of the machine tool spindle is a key sealing device that accurately delivers static high-pressure coolant to the interior of the high-speed rotating spindle. Its core function is to achieve fluid leak free transmission at high speeds, directly cooling the cutting point of the tool. ‌‌

Structural Description
Single channel for coolant or MQL
Technology allows unlimited dry operation without medium pressure
Full flow design, unobstructed passage, avoiding residual impurities
The threaded rotor supported by bearings is easy to install
Double angle contact ball bearing
Maze structure and multiple large leakage ports to protect ball bearings
The balanced mechanical seal uses silicon carbide, which has a long service life, even under harsh operating conditions
Anodized aluminum shell for corrosion resistance

Product Description:
1. Detached sealing technology;
2. When under pressure, it can be closed, and when under no pressure, it can be disconnected, allowing for short-term dry operation;
3. Bearing support and threaded rotor, easy to install;
4. Adopting labyrinth seal and large leakage port to protect ball bearings;
5. The shell is made of aluminum alloy, which has good heat dissipation effect at high speeds;
Speed: 15000r/min Pressure: 8.0MPA Medium: Hydraulic oil, cutting fluid

Expected use:
The rotating joints of the 902, 903, 1109, 1110, 1111, 1121, 1151, and 1129 series are designed to provide cooling lubricant to rotating tools. During periods of stillness, compressed air can usually be used
The tool fixing area for removing chips. Rotating joint design for operation at ambient temperature
Temperature and medium temperature range from 3 ° C to 3 ° C; C to high. 70° C。
Definition of media:
❑ Coolant‐ It is a lotion composed of water and oil-based additives
Cutting oil
❑MQL – Minor lubrication
For information on the working parameters and dimensions of rotary joints, please refer to
Catalog or model specific installation diagram.
The specified rotating joint design is used for non explosive environments and non flammable media.