ROTARY UNITS
SPECIAL VERSIONS
EXAMPLES
High-Pressure Rotary Unions
Reliable Rotary Unions For Hydraulic Systems Up To 400 bar
In modern industrial systems, rotating components are often at the heart of complex processes. At the same time, fluids – particularly hydraulic media – must be transmitted safely, without leakage and reliably under extreme pressure. This is precisely where KONSTANDIN’s high-pressure rotary unions come into play.
These specially designed components provide a reliable connection between stationary and rotating machine parts and ensure safe media transmission even under the most demanding conditions.
With a pressure resistance of up to 400 bar, they are ideally suited for highly loaded hydraulic systems.
- Continuous hydraulic supply to rotating components
- Loss-free transmission of pressure and flow
- High efficiency combined with maximum operational reliability
Thanks to their robust construction and precise sealing, they ensure leak-free operation even at high pressures and maintain consistent system performance.
Designed For Extreme Conditions
Whether exposed to dust, high temperatures, or sustained high pressure, industrial processes place the highest demands on all components used. KONSTANDIN’s high-pressure rotary unions are specifically designed to meet these challenges.
They ensure durable, safe, and efficient media transmission, even under continuous 24/7 operation. This contributes significantly to process stability, equipment availability, and productivity.
When it comes to the safe transmission of hydraulic media in rotating systems, KONSTANDIN’s high-pressure rotary unions provide a reliable solution. They combine maximum performance with the highest operational safety, even at pressures of up to 400 bar.
A key component for anyone relying on precise hydraulics, robust engineering, and long-lasting systems in industrial applications.
Typical Applications in Hydraulics
The combination of hydraulic systems and rotary unions is essential across many industrial sectors. Rotary unions are used in a variety of machines and applications, including:
Excavators and Cranes
For the safe supply of hydraulic pressure to rotating superstructures
Machine Tools
Precise control and cooling of rotating tools
Tunnel Boring Machines
Reliable power transmission under extreme conditions
Water Jet Cutting Machines
High-pressure media supply for precise cutting processes
High-pressure Cleaners
Efficient transfer of cleaning media at maximum pressure
Swivel Drives with Clamping Systems
Smooth and controlled motion in rotating applications
Discover our stainless steel versions of the rotary union series.
Advantages of the KONSTANDIN Rotary Union
- Reliable media transmission up to 400 bar
- Optimised for rotating systems
- Robust and durable design
- High operational safety
- Flexible integration
High-Pressure Rotary Union
G 1/2″
Article no. ZK5188-H
Type DDF-1-1/2″-H
TECHNICAL DATA
| Channels: | 1 |
| Connection: | G 1/2″ |
| Speed: | max. 90 rpm |
| Rotary Movement: | oscillating, pressurized |
| Pmax: | 400 bar |
| Medium: | filtered 5µm |
| Temperature Range: | +15°C to +50°C |
High-Pressure Rotary Union
G 1/2″
Article no. ZK5545-H-SO-06
Type DDF-2-1/2″-H-SO
TECHNICAL DATA
| Channels: | 2 |
| Connection: | G 1/2″ |
| Speed: | max. 80 rpm |
| Rotary Movement: | intermittent, pressurized |
| Pmax: | 350 bar |
| Medium: | Hydraulic |
| Temperature Range: | +15°C to +50°C |
| Features: | – Spindle: Stainless Steel – Housing: Stainless Steel |
Rotary unions
in stainless steel
Article no. ZK5111
Type DDF-3-1/8“-H-SO
TECHNICAL DATA
| Channels: | 3 |
| Connection: | G 1/8″ |
| Rotation speed: | 250 rpm |
| Rotary movement: | pulsed |
| Pmax: | 70 bar |
| Medium: | Compressed air, CO² , aerosol |
| Temperature range: | 0°C to +80°C |
| Features: | – Special seals – Special media – Special geometry – Stainless-steel design – Hollow bore in shaft (ø25mm) |
| Application: | Cryogenic honing process with ATS system |
Rotary unions
for low temperatures (up to -20°C)
Article no. ZK5120
Type DDF-2-M33x2-SO
TECHNICAL DATA
| Channels: | 2 |
| Connection: | M 33×2 |
| Rotation speed: | 25 rpm |
| Rotary movement: | continuous |
| Pmax: | 23 bar |
| Medium: | helium |
| Temperature range: | -20°C to +50°C |
| Features: | – Preparation for current transformer – special seals |
| Application: | Wind turbine |
High-Pressure Rotary Unions
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