How we at Servi perform overhauling and lifespan extension on a cylinder can be divided into 11 steps:
The recommended time interval for overhauling hydraulic cylinders is often set to 5 years. The working environment, temperature, cleanliness of the hydraulic fluid, and usage affect the lifespan, ranging from a few years to, in some cases, over 20 years. Based on these parameters, one can estimate the expected overhaul intervals.
To increase the lifespan of the hydraulic cylinder, the hydraulic fluid, sealing solution, and rod coating are some of the important parameters that play a role. If we are aware of the challenges the cylinder faces, we can often make adjustments to adapt the cylinder to the environment it operates in.
Before the cylinder is disassembled, we assign it an ID number, and document its visual condition and the location of any components. This ensures that we have full control throughout the entire process.
Safety is our highest priority. We ensure that the cylinder is not pressurized before we begin disassembly. If there is suspicion of contamination in the hydraulic fluid, we take necessary samples to detect any impurities.
If there is suspicion of particles, we drain the cylinder through a filter cloth to capture and identify foreign elements. This helps us document the condition and provides important information for further work. We then disassemble the cylinder carefully to avoid damage.
We overhaul all types and makes of cylinders and procure spare parts. We replace all necessary wear parts such as seal kits and bearings/bushings with high-quality parts from reliable suppliers. This ensures optimal performance and a long lifespan for the cylinder.
All parts are thoroughly cleaned and carefully dried. We ensure that the parts are kept clean and protected until and during assembly. Any contamination could damage the cylinder and the system it is connected to.
We perform thorough tests to ensure that the cylinder functions as it should. This includes functional and pressure testing, as well as any other necessary checks to confirm that everything is in order.
Surface treatment is carried out as needed and in agreement with the customer/according to customer requirements. We perform surface treatment on all steel and metal items. Surface treatment of cylinders is our most popular service – performed in Rissa. The cylinders range from 1 kg to 35,000 kg.
Overhauling a cylinder is sustainable in itself, but there are several other environmentally friendly measures that can help protect the cylinder.
