DEUBLIN 1205-154-155
The Deublin 1205-154-155 Rotary Union is a specialized 1/2″ Monoflow unit engineered for In-Shaft mounting on forestry yarders and mobile haulers. Specifically designed for high-cycle air and hydraulic service, it provides the precise fluid control required for winch drum clutches and braking systems in the most demanding New Zealand logging environments.
Precision Winch Control: Deublin 1205-154-155 for Yarder Clutch Systems
In the NZ forestry sector, the Deublin 1205-154-155 is a critical component for operators who require “In-Shaft” mounting for their hauler’s drum assemblies. This 1/2″ NPT Right-Hand union is built to handle the rigorous duty cycles of cable logging, where rapid hydraulic or pneumatic actuation is necessary to maintain line tension and safe log control.
Constructed with a lightweight anodized aluminum housing and a hardened steel rotor, the 1205-154-155 is designed to withstand the “shock-loading” and high vibration of a working landing. Its balanced mechanical seals—micro-lapped to within two light bands of flatness—ensure a leak-proof performance that protects your machine from costly air leaks or hydraulic pressure drops. By choosing a genuine Deublin unit, you are prioritizing uninterrupted uptime and the safety of your ground crew.
Yarder & Mobile Hauler Applications
The Deublin 1205-154-155 is primarily used for winch drum clutch and brake control on mobile yarders and tower haulers. Its “In-Shaft” design makes it a vital replacement part for Madill, Thunderbird, and Skagit machines requiring compact, reliable fluid transfer. Built for the bush, it maintains peak performance in the variable temperatures and high-lead logging conditions across NZ’s commercial forest blocks.
Technical Specifications Table
| Feature | Verified Specification |
| Model Number | Deublin 1205-154-155 |
| Connection Type | Monoflow (In-Shaft / Tapped) |
| Rotor Connection | 1/2″ NPT Right Hand (RH) |
| Housing Connection | 1/2″ NPT |
| Media Compatibility | Air, Hydraulic Oil, Vacuum |
| Max Hydraulic Pressure | 69 bar (1,000 PSI) |
| Max Air Pressure | 10 bar (150 PSI) |
| Max Temperature | 121°C (250°F) |
| Max Speed | 3,500 RPM |






