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Hydraulic cylinders – large-scale manufacturing in Rissa

The factory at Rissa, formerly Servi Cylinderservice, was established in 1936 and began producing hydraulic cylinders and accumulators in 1956. Since its inception, our products have been used in the world's harshest climate for very demanding work operations.

Tailor your own cylinder

Norwegian quality from Rissa

To meet our customers' quality requirements, we are continuously working to further develop our products. Our customers operate within offshore, marine/ship, aquaculture, hydropower, smelters and general industry.

At our factory at Rissa you will find Norway's largest manufacturer of hydraulic cylinders accumulators and dampers. We have an advanced fleet of machines and a fully integrated MPS system. In addition, we have expertise in construction, hydraulics, machining, welding and materials technology.

Read our brochure on machinery and capacities


See the film showing production and service facilities, as well as capacities at the factory in Rissa:


Standard hydraulic cylinder

This series is supplied without type approval and is used for movement that does not have a load-bearing function. Cylinder is supplied in steel or stainless material. The standard series comes with piston diameters up to 300 mm, working pressure up to 400 bar.

Enter your desired stroke length and fastening in our online cylinder configurator for 3D model, data sheet, and price quote.

Cylinder production at Rissa, Norway

DNV type approved - high quality hydraulic cylinder CD25

The CD25 cylinder is type approved by DNV for pressure up to 250 bar, depending on stroke length.

CD25 is a further developed and improved version of the CD-20 cylinder which means more possibilities with low friction, low temperature, high speed requirements, and special bags such as water/glycol and environmental oils.

You can tailor your own CD25 using our online drawing generator.

CD25 can be supplied with a piston diameter from Ø32 mm - Ø400 mm.

Stocked with dimensions from Ø25 mm - Ø280 mm piston diameter with spherical bearing at both ends.


For larger dimensions see contact information here.


Overhaul and service

Norsk Coating AS is part of the Servi Group, and is located in the same building as our cylinder factory. If necessary in customer projects, we hire out professionals and Frosio inspectors Level III.
We offer sandblasting, metalization, and surface treatment to customers, beyond surface treatment in-house.


Our cylinder and accumulator factory was NS-EN ISO-9001:2008 approved in 1993. In addition, the company has quality certificates in accordance with the Pressure Directive (PED B-61, PED D-43), type approvals (ATEX EC, CD – type approved cylinder) and MSA (certification agreement with DNV). In addition, the company has welding technical expertise (IWT) and certified welders according to NS-EN 287.See

See full overview of our certifications


Calculation form for Servi’s CD25 standard cylinders

Read our brochure on CD25 cylinders

24/7 Service - T +47 64 97 97 00
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