Company profile

Sihm Højtryk A/S is an independent company, with many years of experience in high-pressure. We are an agency and service center for many of the world’s leading manufacturers of high-pressure equipment for use in various sectors and applications. In addition, we produce, market, sell and service our own products under the brand name Aquatool all over the world.

Today Sihm Højtryk A/S is one of the world’s leading manufacturers and suppliers of high-pressure equipment for the oil & gas industry, the marine & energy sector with various applications, such as; surface treatmentwater jet cutting and hydrostatic pressure tests, water, gas and chemical, E.g. CO2 and ammonia, injection and pumping.
A long and documented reference list serves as testimony to Sihm Højtryk A/S as a reliable partner and supplier to several contractors, shipyards, the energy sector and the oil and gas industry.

High-pressure units built to client specifications are part of our comprehensive product program. In addition to this, Sihm Højtryk A/S manufactures a wide range of equipment for high pressure flushingsewer cleaning and roof cleaning.
In addition, Sihm Højtryk A/S develops and sells modern solutions for chemical injection of e.g. liquid CO2, ammonia, pumping solutions for Power-to-X and the like.

Sihm Højtryk A/S consists of a sales team, project team, R&D team, production team and a service team, whose mission it is to deliver high-pressure solutions worldwide.
Our service team has undergone extensive courses, including being certified by Parker for assemble and fabricating hoses with a working pressure of up to 4000 Bar, in addition, they have undergone a BOSIET course, which means that they are ready to service our equipment offshore, anywhere in the world.

Global trading

Sihm Højtryk A/S distributes high-pressure equipment worldwide either through the company in Denmark or via strategic agents in local markets.


Sihm Højtryk A/S was founded on April 1st 1991 by Kurt Sihm.

Our story

Sihm Højtryk A/S was established in Kurt Sihm’s garage as a one-man company. The company have continuously developed from selling conventional high-pressure equipment to also providing advanced industrial customized solutions. A generational shift in 2004 also resulted in a decision to target sales more actively towards the offshore sector. This proved to be a smart decision and we now have custom-made high-pressure units located all over the world.

An increase in demand for more sustainable production and desire for climate change mitigation, made Sihm Højtryk evaluate where they could contribute. It turned out that they did not have to look that far, as many of the products that were already in their product range could be used for this, e.g., high-pressure pumps.

Sihm Højtryk A/S currently employs approx. 14-16 people who design, build, and maintain, high-pressure systems of up to 7000 bar used for e.g., surface treatment, pressure testing and water jet cutting. The company is an agent and service center for some of the world’s leading brands such as: HammelmannResatoDynajetPerndorfer, BolondiTST SwedenOertzenStoneageParkerDynasetUhrig Quick-LockTurtle and Reprotex.

The company today, is in east Esbjerg, in a newly developed industry zone, close to the highway E20.


The company is owned by Frank Sihm with 100% of the share capital.

Management system

Sihm Højtryk A/S ’quality management system is DS / ISO 9001: 2015 certified.
In addition to the above, we also meet the requirements for:
DS / ISO 14001
QHSAS 18001

Qualifications and membership

Our quality management system are DNS approved – certificate number 127108-2012 -AQ – DEN- DANAK
In addition, we have been Achilles qualified since 2011 – ID 28449

We are members of altomteknik.dkEnergy Innovation ClusterBusiness Esbjerg, EfB Netværk og CenSec.


We work based on the following values.


Sihm Højtryk A/S must deliver state-of-the-art high-pressure solutions for the benefit of customers, partners, and the environment. We achieve this by being our customers’ natural development partner.


We want to be Denmark’s biggest high-pressure company

We will achieve this by offering the best products and the greatest technical knowledge. This, with innovative and honest advice, we can ensure that our customers get the best high-pressure solution.

Core values:

  • Customer focused
  • Innovative
  • Quality
  • Honesty

Follow us

You can follow us on Facebook and LinkedIn

Alternative use of high pressure unit

How to wash your car with 3.000 bar.

Cut down your christmas tree with 3.000 bar high pressure cleaner.