Hydraulic Cylinder

Today, we produce cylinders, accumulators, and dampers with piston diameters ranging from 20 to 1500 mm and stroke lengths up to 20 meters - in various material qualities - both single-acting and double-acting. Most of what we deliver is customized to the customer's specifications, but we also have standard cylinders.

As one of our cylinder experts

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 double acting cylinder

In the configurator below, you can, on your own, take out the 3D model that suits your drawing program. You get power, cracking, and volume on the screen. In addition, you can take out data sheets and request quotes.

Wide Range of Cylinder Sizes

Our hydraulic cylinders are available in a wide range of sizes and configurations to meet various needs and applications.

The picture on the right clearly shows the difference in sizes.

Special cylinders are delivered with piston diameters from Ø 20 to 1500 mm, stroke lengths up to 20 m depending on the dimension, and pressure up to 1000 bar.

Read more about our tailor made cylinders

Cylinders in various sizes. On the left in the picture, the small cylinder base is placed in the middle of the hole of the large one.

Overhaul and service for cylinders

We offer overhaul of all types of hydraulic cylinders, of all makes. Our 6 service departments in Rissa, Ski, Kristiansand, Bergen, Ulsteinvik and Trondheim have expertise and equipment for overhauling hydraulic cylinders and accumulators. We carry out honing of cylinders in Kristiansand, Bergen and in Rissa.

Other service offerings

Service and modification of small and large cylinders and piston accumulators
Field service and ad hoc service in case of acute problems on piston accumulators and cylinders
Flush and pressure test services
Modification and retrofit of hydraulic cylinders and accumulators
Painting and varnishing services according to industrial, marine, hydropower, defense and offshore standards

Looking for a spare part?

We can supply all parts for all types of cylinder makes. Spare parts for hydraulic cylinders are mainly seals and bushings/bearings. We can also produce steel components, such as new cylinder rods, packing boxes and other things at the factory in Rissa.

Quality and HSE

Our cylinder and accumulator factory was NS-EN ISO-9001:2008 approved in 1993.

In addition, Servi AS, Rissa has quality certificates according to:

The Printing Directive (PED 2014/68/EU, PED Modules B and D). We design and manufacture accumulators, pressure tanks and dampers in accordance with PED.
Approved Presafe 15 ATEX 6670 X, and IECEx PRE 15.0034X certificate (Servi ATEX housing) for cylinders (DNV approved) for use with linear sensors that are not ATEX approved. (ATEX, and IECExII-/2G Ex db IIB Gb, T amp. -20°C to +60°C).
The company is approved by DNV Presafe 16 ATEX 8296Q.
MSA (certification agreement with DNV)

In addition, the company has welding technical expertise (IWT) and certified welders in accordance with NS-EN 287.