Rotary units
General
Rotary units
Series
Rotary units
Stainless steel series
Rotary units
Electrical
Rotary units
Preparation for electricity
Rotary units
Customized solutions
Rotary units
For high temperatures
Rotary units
For rotary tables
Rotary units Series
Our rotary unions (DDF type) are suitable as standard for the media compressed air, vacuum and hydraulics (low pressure).
Versions
Rotary unions are subdivided according to the number of their channels and according to the nominal width or the connection thread:
Number of channels available: 1, 2, 4, 6 and 8
Connection sizes: M5 to G 1″ (see individual series)
General
The values given below are the maximum parameters that can be achieved.
Technical advice is required when using below 0 °C or when several parameters coincide in the limit range.
Please inquire about your desired rotary union directly here:
Request DDF on our contact page or alternatively fill out the rotary union project questionnaire.
Example of type designation:
DDF-2-1/4 = 2 channels, G1/4″ connection
Material
Housing: aluminium with anodised red
Shaft: stainless steel
Media/hydraulic fluids:
Compressed air, vacuum,
Hydraulic oil (low pressure)
In case of different media,
we recommend providing a channel as a leakage line.
Example:
Two channels for compressed air and one channel for nitrogen are required
Recommendation:
4-channel rotatory union
Rotary unions, 1 Channel series
Type: DDF-1
TECHNICAL DATA
| Channels: | 1 |
| Connection: | M5 – G1/8″ – G1/4″ – G1/2″ – G3/4″ – G1″ |
| Rotation speed: | max. 3000 rpm M5 – G 1/4″ max. 2000 rpm G 1/2″ max. 1500 rpm G 3/4″ max. 1200 rpm G 1″ |
| Pressure: | -0,95 bar to 16 bar |
| Temperature rang: | 0°C to +100°C |
| Medium: | Compressed air, vacuum |
| Filtering: | liquid media:: 5 µm gaseous media: 30 µm |
| Data sheet: | 1 Channel |
| 3D-CAD-Modelle: | Link |
| on request: | further pressure and temperature ranges, Connection sizes Etc. |
Rotary unions, 2 Channel series
Type: DDF-2
TECHNICAL DATA
| Channels: | 2 |
| Connection: | M5 – G1/8″ – G1/4″ – G1/2″ |
| Rotation speed: | max. 300 rpm |
| Pressure: | -0,95 bar to 16 bar |
| Temperature rang: | 0°C to +80°C |
| Medium: | Compressed air, vacuum |
| Filtering: | liquid media:: 5 µm gaseous media: 30 µm |
| Data sheet: | 2 Channel |
| 3D-CAD-Modelle: | Link |
| on request: | further pressure and temperature ranges, Connection sizes Etc. |
Rotary unions, 4 Channel series
Type: DDF-4
TECHNICAL DATA
| Channels: | 4 |
| Connection: | M5 – G1/8″ – G1/4″ – G1/2″ |
| Rotation speed: | max. 300 rpm |
| Pressure: | -0,95 bar to 16 bar |
| Temperature rang: | 0°C to +80°C |
| Medium: | Compressed air, vacuum |
| Filtering: | liquid media:: 5 µm gaseous media: 30 µm |
| Data sheet: | 4 Channel |
| 3D-CAD-Modelle: | Link |
| on request: | further pressure and temperature ranges, Connection sizes Etc. |
Rotary unions, 6 Channel series
Type: DDF-6
TECHNICAL DATA
| Channels: | 6 |
| Connection: | M5 – G1/8″ – G1/4″ – G1/2″ |
| Rotation speed: | max. 200 rpm M5 max. 120 rpm G 1/8″ max. 100 rpm G 1/4″ max. 80 rpm G 1/2″ |
| Pressure: | -0,95 bar to 16 bar |
| Temperature rang: | 0°C to +80°C |
| Medium: | Compressed air, vacuum |
| Filtering: | liquid media:: 5 µm gaseous media: 30 µm |
| Data sheet: | 6 Channel |
| 3D-CAD-Modelle: | Link |
| on request: | further pressure and temperature ranges, Connection sizes Etc. |
Rotary unions, 8 Channel series
Type: DDF-8
TECHNICAL DATA
| Channels: | 8 |
| Connection: | M5 – G1/8″ – G1/4″ – G1/2″ |
| Rotation speed: | max. 200 rpm M5 max. 120 rpm G 1/8″ max. 100 rpm G 1/4″ max. 60 rpm G 1/2″ |
| Pressure: | -0,95 bar to 16 bar |
| Temperature rang: | 0°C to +80°C |
| Medium: | Compressed air, vacuum |
| Filtering: | liquid media:: 5 µm gaseous media: 30 µm |
| Data sheet: | 8 Channel |
| 3D-CAD-Modelle: | Link |
| on request: | further pressure and temperature ranges, Connection sizes Etc. |
Rotary union, full brochure
Scrollable version,
Din A4, 16 pages,
German/English