1109-041-188 rotary joints

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Structural features: Made of corrosion-resistant materials, specially designed to operate in limited conditions without damaging the joints, the sealed rolling bearings do not require lubrication for life, and the balanced sealing load and wear are reduced to the limit, reducing torque. The sealing material has self-lubricating properties, and the spring component is located on the outside of the fluid channel, which can reduce pressure loss and avoid particle retention in the medium. Overall, it improves the quality of the fluid and is suitable for water, hot oil, and steam applications. The stainless steel outer tube is corrosion-resistant, with a longer service life and complete and uniform flow design. The pressure loss is small, and two precision imported bearing supports ensure long-term fault free operation. The balanced mechanical seal design reduces the wear of the sealing surface caused by the sealing load, greatly extending the service life.

1109-041-188 is a high-performance single channel rotary joint belonging to the Deublin 1109 series. This series of products is designed specifically for high-speed, high-precision machine tool spindle coolant or micro lubrication (MQL) applications. Its core feature is the use of patented “pop off” technology, which allows unrestricted dry operation without medium pressure, effectively preventing premature wear of the sealing surface due to friction during tool change or shutdown.
Core technical features
Detachment sealing technology: When there is no fluid pressure inside, the special elastic diaphragm structure automatically separates (detaches) the sealing surface to avoid dry friction; When the pressure is restored, the sealing surface closes again to ensure zero leakage. This feature greatly extends the service life, especially suitable for CNC machine tools that require frequent start stop or tool change.
High precision bearing support: equipped with dual ABEC 7 (ISO P4 grade) angular contact ball bearings, providing extremely high rotational accuracy and stability. Compared to ordinary deep groove ball bearings, angular contact bearings can withstand higher radial and axial loads, supporting speeds up to 20000 RPM without vibration or trembling.
Full flow unobstructed design: The internal flow channel has been optimized to form a straight through structure, which will not hinder the passage of chips or debris, prevent blockage, and ensure continuous and stable flow.
Durable material construction:
Shell: Made of anodized aluminum material, it has excellent corrosion resistance and is equipped with fin shaped heat dissipation fins to assist in heat dissipation.
Rotor: Made of stainless steel material, corrosion-resistant and high-strength.
Mechanical seal: Balanced mechanical seal, usually made of silicon carbide, can maintain a long service life even under harsh working conditions and high pressure.
Protection system: Maze sealing system and large ventilation design effectively protect the internal ball bearings from contamination.