We have been working on our goals for over five decades. And we’re just getting started.

Hydroline Oy designs and manufactures durable, heavy-duty hydraulic cylinders and offers life cycle services to them. The Finnish industry leader is a high-class pioneer in the hydraulic industry and one of the most modern operators in Europe and worldwide.


The customers of Hydroline are the large machine and device manufacturers such as Epiroc, Sandvik, Rocla, John Deere, Cargotec, Agco, Valtra, Ponsse and Bronto Skylift. The company possess over 50 years of experience from the industry and commits to the customers’ needs – these are the success factors of our family-owned company. Our vision is to grow and expand the business further into global markets.

Hydroline has grown to be a strong hydraulic cylinder supplier in the European markets. We are a major supplier of hydraulic cylinders in all across Europe and serve our customers with pride.

In addition to the customized cylinders, Hydroline offers piston accumulators, system configurations, and versatile services such as repair and manufacturing services. The modern production facilities are located in Vuorela, Siilinjärvi (Finland) and in Stargard (Poland), where the production started in 2014. The core values of Hydroline are guiding its business strongly that are commitment, sustainability, interaction and people.


Learn more about us


The story of Hydroline started back in the 1960s when Helge Laakkonen founded his own metal lathing shop.

Code of Conduct

Anyone willing to do business with Hydroline must meet the principles in Hydroline’s Code of Conduct, in order to take steps towards a well-working and dependable relationship.

Our policies

Our policies for quality, safety, health and personnel are the framework and constraint for our business within which everyone can strive for individual and collective success.

Contact us to learn more about Hydroline

Manu Leinonen

VP design and R&D

Mikko Laakkonen

Chairman of the Board

Are you interested in working at a growing, international company?

At Hydroline, you will have a freedom to gain expertise of your working area and we will offer you training opportunities as well as challenges in your daily work.

Go check out our Careers page for information about open positions and working at Hydroline.