Our Tower Crane Rotary Union is designed to provide reliable fluid transfer for high-rise construction machinery. Engineered for hydraulic systems in slewing platforms and rotating arms, this rotary joint ensures 360-degree fluid communication while maintaining a leak-free seal under high pressure.
Whether transferring hydraulic oil, air, or water-glycol coolant, our rotary unions maintain superior performance in demanding tower crane applications.
Allows continuous fluid transfer even under full rotation—perfect for tower crane slewing and jib rotation.
Utilizes high-performance seals (FKM/NBR/PTFE) to prevent leakage in harsh outdoor environments, including dust, moisture, and high pressure.
Stainless steel or carbon steel with anti-rust coatings withstand marine climates and construction sites.
Available in 2, 4, or 8-passage designs for hydraulic oil, pneumatic, or hybrid media transfer.
Supports NPT, BSPP, DIN threads, and flange-mounted connections for compatibility with most crane hydraulic systems.
Enables smooth oil transfer to rotating mechanisms during 360° crane movement.
Maintains pressurized flow to luffing jib cylinders or rotation actuators.
Supplies fluid to operator controls, cooling systems, and safety hydraulics.
Powers winches, hooks, or hoisting mechanisms require a continuous hydraulic supply.
Ensures flexible and efficient connection between static and rotating parts.
Built to handle continuous rotation, pressure spikes, and dirty worksite conditions.
Custom-designed rotary unions for Potain, Liebherr, Zoomlion, Terex, and other tower crane brands.
In-stock standard units and quick production cycles for custom builds. Shipped worldwide.
Factory-direct pricing without sacrificing quality—ideal for crane maintenance, replacement, or upgrades.
The engineering team provides CAD drawings, port layouts, and installation assistance.
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Deublin Rotary Union Replacement Manufacturer | Custom Solutions Available
