Hammar is the company behind the world-famous, life-saving H20 Hydrostatic Release Unit (HRU). We develop, manufacture and supply; release units for liferafts and Emergency Position Indicating Radio Beacons (EPIRB), Remote Release Systems (RRS), and various Inflators for inflatable lifejacket.


Our vision is to substantially reduce the loss of lives at sea by creating Better Solutions for Safety at Sea.

We do so through our commitment to quality, constant innovation, and sensitivity to our customers' needs. We are sensitive and alert to market demands and possibilities and continuously improve our products and services.

Our products have been saving lives all over the world for more than 30 years. We know that people's lives depend on the work that we do and the reliability and performance of our products.

Therefore, all of our team members take profound pride in maintaining absolute top-quality production and delivering products that we know will perform when needed and live up to - or exceed - international safety standards.


Hammar leads the way towards increased safety on the seas by actively developing safety products. We develop, manufacture and supply release units for liferafts and EPIRBs, RRS, and various Lifejacket Inflators.

Our products for safety installations are designed to be safe and reliable in all extreme conditions.

The Hammar H20 is the world's best-selling HRU and has saved lives on the oceans for more than 30 years. The H20 combined in remote release systems enable you to release liferafts, EPIRBs, or marine evacuation systems from the bridge or other strategic locations onboard a vessel.


Hammar performs extensive testing on all of our products. We are often ahead of regulations and test more rigorously than required by governing bodies.

All the incoming components are thoroughly measured and tested by the quality control team. Crucial components for product performance are inspected rigorously in several different stages of production.

Most of the components that make up the H20 are mounted automatically by purpose-designed machinery, always operated and monitored by the well-trained Hammar crew. Several quality controls are programmed into the machinery. Visual controls are also made during the production process.

Four percent of our products undergo destructive tests where a real-life activation is simulated.


To maintain total control and achieve the highest reliability standards, all of our products are produced in our own factory located in Sweden. The production is highly automated to ensure a high and consistent level of quality.

After the components have passed the quality-control, they continue their way through the production line.

Even in this highly automated and digitalized production, there is still no way to make the over 200-year-old fisherman's knot on the H20 more effectively and safely than by hand - an example of how old professional knowledge and innovation are important to create high-quality solutions for safety at sea.

Every single step in our production process is developed with a focus on quality and quality control. Of course, we work hard to streamline our production, but quality will always be our top priority. Our products are designed to save lives - and we have no margins for errors.


Our goal is to create positive change for future generations. Our overall environmental goal is to contribute to reduced environmental impact in line with the Paris Agreement. As an interim target, we shall reduce CO2 emissions related to our operations by 50% by 2030.

We must contribute to the reduction of greenhouse gases. Our target is an annual reduction of at least 7%, which is neceessary if we are to achieve a 50% reduction by 2030. (This includes direct and indirect  energy consumption, including the full lifecycle effect of our products.)


We believe that we are stronger together. Our mission can only be fulfilled through the knowledge, commitment, and engagement of our staff.

We are committed to developing our employees' knowledge, skills, and creativity to continue to create Better Solutions for Safety at Sea and reduce the loss of lives at sea.

Quality is one of our core values. We ensure a high quality through careful testing of our products so that you can feel safe at sea.

We want it to be easy doing business with us. We thrive on being available to our customers and leading the way towards Better Solutions for Safety at Sea.

Interested in joining our team?

We advertise all our vacancies via our social media. Keep updated by visiting us on Instagram and Facebook.


We at Hammar think it is extremely important that we all help in the way we can! That’s why we are participating in the “Save Lives at Work” initiative through the GeBlod organisation. The initiative is about allowing and encouraging our employees to donate blood during working hours.

In Swedish healthcare, on average, one bag of blood is needed every minute, around the clock, all year round. The blood is used, among other things, in cancer treatments, childbirth and accidents. Since a bag of blood can only be stored for six weeks, a steady stream of blood donors is essential.

Being a blood donor is a vital social investment that saves lives. Together we can make a difference!

If you want to know more and participate in the “Save lives at work” initiative, you can read more here: Rädda liv på arbetstid I GeBlod


Ensuring our employees work in a safe, fair, and transparent environment is important to us at Hammar. We encourage anyone (employees, customers, suppliers or other stakeholders) to speak up if they suspect wrongful activity or misconduct at any of the Ernströmgruppen companies. We also want you to feel comfortable to make a report and know it will be taken seriously.

If anyone should suspect wrongful activity or misconduct this can be reported though this link: https://ernstromgruppen.whistlelink.com/


It all started on the 9th of May 1856. The traveling blacksmith Carl Mauritz Hammar had arrived in the city of Göteborg on the western coast of Sweden. In the heart of Scandinavia, here was - and still is - the biggest harbor in northern Europe.

Here he saw the potential to be a supplier for the city's big shipyard industry. And on that magical day, Carl Mauritz received the king's letter permitting him to start a sheet metal workshop, and the company CM Hammar was founded.

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