1109-021-188 rotary joint

1109-021-188 is a 1109 series high-speed center outlet rotary joint produced by Deublin Corporation in the United States. This model is designed specifically for machine tool spindle cooling, micro lubrication (MQL), and high-precision machining applications, with high speed, high pressure bearing capacity, and excellent sealing performance.

Main technical features
‌Pop-Off ™ Detachment technology: This is the signature technology of the Deublin 1109 series. The unique elastic diaphragm design allows the sealing surface to automatically “detach” when there is no medium pressure, allowing for indefinite dry operation without damaging the sealing surface; When the pressure is restored, the sealing surface closes again. This greatly extends the service life and reduces maintenance requirements.
Balanced mechanical seal: using a combination of silicon carbide/silicon carbide (SiC/SiC) seals, it has extremely high hardness and wear resistance, and can maintain long life and leak free operation even under harsh operating conditions.
Bearing support structure: Built in precision angular contact ball bearings provide stable radial and axial support, ensuring rotational accuracy and stability at high speeds. The bearing is located near the outlet and is protected by a labyrinth seal and a large vent to prevent chips and contaminants from entering.
Full flow design: The internal flow channel is unobstructed, effectively preventing the accumulation of chips, debris or impurities, especially suitable for metal processing environments.
Corrosion resistant shell: The shell is made of anodized aluminum material, which has good corrosion resistance and lightweight characteristics; The rotor is usually made of steel to ensure strength and durability.
Easy to install: The threaded rotor design facilitates direct connection with the spindle, supports radial or axial shell connections, and adapts to various machine tool structures.
Single channel for coolant or MQL
Pop Off technology allows infinite 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