The new quality brand for premium anchor chains

Röttgers has been manufacturing quality chains for more than 100 years. However, 2021 marks a new milestone in our company history. We would like to present ROXMA, our own premium brand for quality anchor chains. Thanks to our many years of experience, we know that our customers need a 100% reliable chain. We assure you:

You can rely on ROXMA anchor chains.

Stainless steel ROXMA chains have reached new heights with regard to durability, tensile strength and corrosion resistance, and exceed all common standards by far.

Why makes ROXMA better than the rest?

There are a large number of inferior anchor chains on the market.

How do I find the right chain? The price is a good indicator.

Cheap chains are usually of inferior quality and will most likely malfunction in rough seas, which means they are guaranteed to break. Unfortunately, even expensive chains often do not meet the quality expectations of their owners.


Our center of excellence for materials has been developing quality solutions for challenging customer requirements from the industry for some time now, and we have recently become a technological leader in the area of mechanical and plant engineering in the last few years as well.

Thanks to the combination of our technological know-how, 100 years of experience and startup mentality, we are now setting new standards at sea with ROXMA.


Which anchor chain is used for which purpose?

We produce our ROXMA anchor chains from high-quality European stainless steel for use in warmer waters.

We produce Grade 4 and Grade 7 galvanized anchor chains for use in colder waters.

Commitment to quality

Our ROXMA chains undergo rigorous quality control inspections in our in-house laboratory during every production run. This includes tensile strength testing and microscopic cross-sectional testing as well.

Furthermore, we are one of very few manufacturers of anchor chains with an in-house salt spray chamber, where we put our ROXMA anchor chains through continuous corrosion resistance testing under extreme conditions for several months at a time.

The results of in-depth comparative testing conducted on our ROXMA anchor chain and a cheap stainless steel chain produced in Asia are available for download in PDF form.

download PDF


Welding seam tears before the predetermined breaking point is reached


Welding seam remains intact; material breaks when
severely overloaded

ROXMA chains break only when they are severely overloaded and stretched to the maximum.

The certificate of conformity confirms that our internal business structure and organization is in accordance with the international standard for quality management.

We are a manufacturer of stainless-steel/NIRO chains.

The H-seal (stamp) is a proof for the special quality of the chains.

Where can I purchase original ROXMA anchor chains?

We currently have a small, exclusive network of dealers, which is being continually expanded. At present, ROXMA anchor chains are available for purchase from:

• Marinetech Edelstahlhandel GmbH & Co. KG

Private individuals:
• Parasail
• Schulz-Hohenstein Soehne

We welcome inquiries from dealers, marinas and yacht builders. Please use our inquiry form for dealers or contact our sales staff directly for comprehensive advice.

If you as a yacht owner or skipper have the opportunity to install an anchor chain yourself, then please use the inquiry form as well.


Inquiry form

Data privacy

Current announcements, news, testimonies and videos related to ROXMA.

Sales Partner

Our distribution partner „Marinetech“promotes in its current newsletter our ROXMA anchor chains made of Duplex stainless steel for warmer waters. You can read the newsletter online here. At the boat show “Metstrade 21” in Amsterdam from 16 – 18.11.2021 our anchor chains will also be presented live there at the Marinetech booth.

Social media partner wanted

You are planning a big expedition by boat? Maybe even a circumnavigation? And you need a new, unbreakable anchor chain that you can rely on even in stormy seas? If you are active in social media, have fans and followers and post on a regularl basis, then we should definitely get together. We at Röttgers Ketten are looking for practicing partners who put our ROXMA anchor chain through its paces in a long-term test on all the world’s oceans and report on it. You post regularly photos and videos of your journey, and report occasionally where and how you anchor. As a thank you we will provide you with a ROXMA anchor chain suitable for your ship, which you can keep after the voyage of course. Interested? Then apply with a short video and tell us why you absolutely need a stainless ROXMA anchor chain.

A look behind the scenes of the most modern production line for anchor chains in Europe. Our strongest anchor chains are bent, welded, stamped and calibrated on these machines. As far as we know, we are the only manufacturer who can also process duplex steel with a diameter of 16mm automatically and with consistently high quality.

boot 22

From January, 22 – 30 2022 the international trade fair “boot” will take place again in Düsseldorf. ROXMA will be there for the first time as co-exhibitor -together with a partner- on an own booth. If you would like to visit us at the “boot 22” to get to know us and our anchor chains, please contact our product manager Leon Henschke. We will gladly send you an entrance ticket.

Motorboot online

The magazine “Motorboot online” has published a technical feature concerning the special quality of ROXMA anchor chains and our production in Germany. The report (in german language) is linked here.

Find out more on social media

Videos on the production of and quality tests on ROXMA anchor chains are available in our media library. Testimonies from users will be added in the future.

If you would like to be kept up to date, then please subscribe to our YouTube channel, follow us on social media, or subscribe to our newsletter.

Röttgers Ketten GmbH & Co. KG
Untergrüner Straße 72 – 76
58644 Iserlohn

Fon +49 2374 9794-0
Fax +49 2374 9794-31