No slippery questions concerning slip rings


One of the important parts of the pikchain® is the slip ring and the rotary union or a combination of both. This part establishes the contact between the c-chain and the let’s say “outside world”

We got a lot of questions concerning this issue. We want publish some answers here:

Does igus® produce slip rings or rotary unions?  No!

Does the delivery package of the pikchain® also contains the slip ring or rotary union? As an option: Yes. igus® recommends buying the part yourself. We will tell you what and where you can buy the best part for you application.

Do rotary unions exist for Air, Water, and Hydraulics? Yes, nearly everything is possible. Most of time it’s only a question of space and price

Can I also transmit data with slip rings? Yes there are Slip Rings for all bus types on the market. We are pleased to consult you.

What about fibre optics? Are there existing also slip rings for this media? Yes, this is also available on the market.

What does a slip ring or a rotary union costs? This question is not possible to answer. Sorry. From a couple of hundred Euro up to several hundred thousands of Euros. It really depends on your application.

Are there combination of Slip Ring and Rotary Unions available? Yes, there are companies which harness your part according to your requirements.

Are there rotary unions on the market which are made for fiber optics? Yes, even for fiber optics.

How do I connect the slip ring to the c-chain? We will design and produce for you the connection.

You don’t find the answer to your questions? Don’t worry. Just call or E-Mail me. I am pleased to find the right answer for you. Christian Strauch +49 2203 96 49 7208.

Vacuum: Turn it on , turn it off!


You have a vacuum conveyor? You produce vacuum conveyors? Well, I am pretty sure that you know that: Either the vacuum power is on for all stations or off for all stations.

What would you say if igus® can offer you components which allow you to produce a vacuum conveyor where all stations can be controlled individually? That would mean: for each single suction cup: Vacuum on, vacuum off, instead of for the whole conveyor. That would be real fantastic, wouldn’t it?

And there are much more benefits.
You save energy
Only a couple of suction cups need their vacuum instead of the whole conveyor.
Less noise

The conveyor needs always only a certain volume of vacuum, never the maximum, or let’s say never all suction cups.
Flexibility: Because of the modular structure of the pikchain® you can change the numbers of suction cups or to add other tools (grippers, cameras, sensors, etc) on the pikchain® without having to perform time consuming conversion work. The same: Extending or shortening of existing pikchain®.
Price: The modular structure allows igus also to offer the pikchain® components to a very reasonable price.

What do you think?


Last week: Please don’t stop the dog!

WHAT? No, no, we don’t have a dog!

But the pikchain® links have now also a stop dog like our e.chains® The first prototype links didn’t have a defined radius.

Because of the stop dog, the pikchain® is now running much smoother and more exactly. And this has also a positive effect on the tools mounted on the pikchain®. The pikchain® has now even a slight pretension. A low noise operation and a higher accuracy are the nice positive side effects of this change. Well, all important tiny details that make the big difference. The pikchain®: Save time, save energy and costs down!


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