Lathe center water outlet rotary joint 1109-020-188

The 1109 type joint adopts a bearing structure and features a Dublin “disengagement” design. Its elastic diaphragm can “detach” the sealing surface when there is no cooling pressure, and then restore the closed state after the pressure is restored. The product is widely used in industries such as papermaking, chemical industry, metallurgy, steel, printing, rubber, food, machinery, etc

The 1109 type joint adopts a bearing structure and features a Dublin “disengagement” design. Its elastic diaphragm can “detach” the sealing surface when there is no cooling pressure, and then restore the closed state after the pressure is restored. The product is widely used in industries such as papermaking, chemical industry, metallurgy, steel, printing, rubber, food, machinery, etc
Core Overview
DEBLIN 1109-020-188 is a single channel rotary joint designed specifically for high-precision machine tool machining centers. This model belongs to the Deublin 1109 series and adopts a unique “pop off” sealing technology, which can automatically separate the sealing surface in a non pressure state, allowing the equipment to operate safely in dry or non medium pressure without damaging the seals. Its design aims to meet the needs of modern CNC machine tools for high-speed, high-pressure coolant delivery and long-term maintenance free operation.
Main technical features
Patent “Pop off Technology”
Built in elastic diaphragm structure, when there is no fluid pressure in the system, the sealing surface automatically “disengages” to avoid wear caused by dry friction; When the pressure is restored, the sealing surface closes again. This feature allows the joint to operate without coolant pressure, greatly extending its service life.
High performance bearing support system
Equipped with double row ABEC 7 (ISO P4 grade) precision angular contact ball bearings, ensuring stability and low vibration at high speeds.
The bearing is directly supported by a threaded rotor, making it easy to install and evenly stressed.
The labyrinth sealing system and large discharge outlet design effectively prevent chips and debris from entering the bearing area, protecting the bearing from contamination.
Balanced mechanical seal
Adopting a silicon carbide/silicon carbide  sealing combination, it has extremely high hardness and wear resistance.
The balanced design minimizes the sealing load, reduces friction torque and heat generation, and significantly extends the sealing life.
The spring component is located outside the fluid channel to avoid particle retention in the medium and ensure unobstructed flow.
Corrosion resistant and lightweight structure
Shell: Made of anodized aluminum material, it has excellent corrosion resistance and reduces overall weight.
Rotor: Made of stainless steel material, with high strength and erosion resistance, suitable for various harsh working conditions.
Full flow non blocking design
The internal flow channel has been optimized to achieve full flow without being blocked by chips or impurities, ensuring efficient delivery of coolant to the tool tip and improving machining efficiency and surface quality