rotarX Hybrid Slip Rings for Power, Signal and Coaxial Transmission
Compact slip rings with up to 4 coaxial lines
Technical Specifications
Protection class
IP51 (higher on request)
Rated Current
5-10A per ring
Housing material
Aluminium
Number of rings
2-72
Rotational speed
0-150 rpm
Additional services
Condimentum tempus tristique.
Electrical Specifications
- Number of rings: 2–72
- Nominal current: 5-10A per ring
- Max. operating voltage: 440 VAC/DC
- Dielectric strength: ≥500V @50Hz
- electrical noise: max 10mΩ
- Insulation resistance: ≥1000 MΩ @ 500 VDC
2D drawing
Download detailed drawing matching the slip ring now
Catalogue
All details about our slip rings clearly arranged in the catalogue
Product selection Coaxial slip rings
Itemnumber | Coaxial connector | Plug type | Number of rings Signal | Number of rings Power | Total rings |
|---|---|---|---|---|---|
2 x DC-4.5 Ghz | Coaxial cable RG178 | 51 x 5A | 9 x 10A | 60 | |
2 x DC-4.5 Ghz | SMA | 48 x 5A | 12 x 10A | 60 | |
2 x DC-4.5 Ghz | N-Type | 48 x 5A | 12 x 10A | 60 | |
2 x DC-4.5 Ghz | Coaxial cable RG178 | 48 x 5A | 12 x 10A | 60 | |
2 x DC-4.5 Ghz | SMA | 72 x 5A | - | 72 | |
2 x DC-4.5 Ghz | N-Type | 72 x 5A | - | 72 | |
2 x DC-4.5 Ghz | Coaxial cable RG178 | 72 x 5A | - | 72 | |
3 x DC-2.5 Ghz | SMA | - | - | ||
4 x DC-2.5 Ghz | SMA | - | - | ||
2 x DC-4.5 Ghz | N-Type | 24 x 5A | 4 x 10A | 28 |
Coax Slip Rings
Coaxial slip rings (or COAX) for signal technology and more. The coaxial cable gets its name from its structure. Instead of a strand of bundled wires, the current-carrying paths in a coaxial cable are nested inside each other. The concentric, onion-shaped cross-section is called coaxial because two conductor axes are built into each other. The outer conductor axis consists of a stainless steel or copper braid. This keeps the coaxial cable very pliable and flexible. The precisely centred inner conductor is a conventional, monolithic copper cable.
A dielectric material acts as an insulating protective layer between the two live wires. It prevents short circuits between the wires. Suitable hoses made of soft plastic or rubber are used for this purpose. The cable is usually specially protected against moisture penetration from the outside. This is necessary because of the thin copper wires in the outer cable, which would otherwise rust quickly.
Coaxial cable has proven itself particularly in signal technology. It has good self-shielding properties and is insensitive to interference signals. Above all, it is suitable for transmitting signals over long distances with virtually no interference. In the home, coaxial cable is therefore familiar as the connection cable between a satellite system and the television. In industry, coaxial cables play a major role, particularly in automation and data transmission technology. It is usually located between the interfaces of radio receivers and transmitters and a sensor or actuator that is to be moved by wireless signal. This often requires rotary unions. The coaxial slip ring was developed to maintain the transmission capacity of the coaxial cable even with rotary unions.
Coaxial slip rings
SMA connector installed directly in the housin
Customised flange solution
Different housing materials to choose fro
Individual modification of the housing shap
Functionality of coaxial slip rings
rotarX offers the coax slip rings as hybrid slip rings. This allows you to have other signal and/or power feedthroughs in addition to the coax feedthrough. The coaxial feedthrough consists of one to four coaxial connections on the inner, stationary part of the coaxial slip ring. The signals are transmitted to the rotatable outer rotor via special gold-gold brush contacts. Modern fibre brushes are installed in the coaxial slip ring for the signal transmission of the coaxial impulses. They guarantee a constant transmission quality of the signals.
Advantages of rotarX coaxial slip rings
Our coaxial slip rings offer you the following advantages:
- design tailored to coaxial applications
- Sturdy housing made of robust aluminium
- High load capacity according to IP51, higher on request
- Rotates up to 150 revolutions per minute
- Corrosion-resistant with gold-gold contacts
- available in many variants
The compact and high-strength aluminium housing makes the coaxial slip ring resistant to corrosion and UV radiation. The screw tab integrated into the inner stator is also made of this proven metal. This makes the coaxial slip ring 100% corrosion-resistant. With the screw tab, the “anti-rotation tab”, the coaxial slip ring can be mounted on any surface.
The housing is shielded against active and passive radio interference. This is particularly important for coaxial slip rings, as this type of cable is mainly used for signal transmission. The standard coaxial slip ring can rotate at up to 150 revolutions per minute. The wide selection also includes the right coaxial slip ring for your application. With protection class IP51, the slip ring is resistant to dust and splash water. This protection class is sufficient for most applications. If your applications require a higher level of protection, please contact us. We will find the right coaxial slip ring for your challenges.
Coax Slip Rings Offer
We can offer you coaxial slip rings with one to four coaxial feedthroughs. A coaxial slip ring has a total of up to 72 feedthroughs. Each ring has a maximum feedthrough voltage of 440 volts, regardless of whether it is direct or alternating current. This gives you a small reserve for the maximum voltage resistance of 500 volts. The coaxial slip ring keeps electrical noise to a maximum of 10 milliohms. The insulation resistance or dielectric strength is designed for 1000 megaohms at 500 volts DC.
Without customer specifications, we supply the coaxial slip rings with incoming and outgoing cables in a length of 300 mm. Other lengths can be manufactured at any time. With an operating temperature range of -30 °C to +80 °C, the coaxial slip ring can also be used in extreme environments. If you have any special requirements for your coaxial slip rings, please let us know.
Using the coaxial slip rings
The installation of the coax slip rings is easy. They are simply screwed to a solid base with the lug and connected to the cables. Ideal for their attachment are fits that are easy to make yourself. To avoid confusion, all incoming and outgoing cables have the same colour pattern. If the coax slip ring is mounted on the stator side on a rotating component, for example a hollow shaft, you should ensure that it is positioned exactly in the centre. In this way you avoid undesirable twisting.
Use of the coaxial slip rings
Coaxial slip rings are used for the reliable transmission of high-energy radio signals, as are commonly found in coaxial cables. This limits their rotational speed. Higher speeds would cause sparking in the slip ring, which would then lead to interference signals. Most applications of coaxial slip rings are therefore very slow and do not utilise the entire angle of rotation. Typical areas of application for coaxial slip rings are as follows:
- Camera and security systems for commercial use
- medical scanners or scanners for baggage screening
- Underground mining and oil production
- automation technology
- medical applications
- Sensory
- Avionics
- Defence and construction vehicles
- radar systems
- drone technology
- SATCOM
- wind energy
Repair of the coaxial slip rings
Coaxial slip rings are precision-manufactured components for a precisely defined application. They are designed ex-works to fulfil their purpose trouble-free over their entire service life. Disassembly would counteract this purpose. The coaxial slip rings are therefore not designed for internal maintenance. However, we can offer you an exactly calculated service life of the coaxial slip rings for each application. So you know exactly when you should replace your slip ring as a precaution. With our favourable prices, the change to a new slip ring is also particularly easy.
How to get your coaxial slip rings
Our wide product range has the right coaxial slip ring for most applications. However, if you have special requirements, please contact us. We will find the ideal solution for your challenge in a joint discussion. We look forward to your call!
Practical slip ring solutions for your application
Product catalogue for all slip rings
Find out about the different slip rings in our current overview. Transmission technology for complex industrial and safety-relevant applications form the core of our product range. All products can be individually adapted to the applications in order to offer you added value. Premium engineering - that is our claim for every single product we manufacture. We would like to convince you of this.
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