What is a sealing system in hydraulic cylinders
A sealing system in a hydraulic cylinder is a combination of components designed to retain fluid, ensure proper operation and protect internal parts from external agents.
It is not a secondary detail, but a fundamental element of cylinder design, directly affecting performance, reliability and service life.
Operating conditions in waste applications
In waste collection machinery, hydraulic cylinders operate in harsh environments characterised by:
- dust and debris
- exposure to liquids and contaminants
- intensive duty cycles
- variable loads and motion
These conditions introduce continuous stress and make protection of the internal system a critical design requirement.
Risks related to contamination and exposure
When contaminants enter the cylinder, they can compromise system performance and durability.
The most common risks include:
- accelerated seal wear
- damage to sliding surfaces
- reduced efficiency
- increased maintenance requirements
For this reason, sealing systems must be designed to withstand real operating conditions, not ideal ones.
Design choices in sealing systems
Effective sealing system design requires a careful evaluation of multiple factors, including:
- type and size of contaminants
- environmental conditions
- system pressure and speed
- duty cycles
Material selection, seal geometry and configuration must be aligned with these parameters to ensure consistent performance over time.
An application-driven approach
Sealing systems cannot be standardised across different applications.
They must be developed based on real operating conditions, translating environmental exposure and system behaviour into specific design choices.
This is the approach adopted by specialised manufacturers such as RIMA, where hydraulic cylinder design starts from the analysis of operating conditions and machine interaction, ensuring that sealing solutions are aligned with the actual application.
Explore hydraulic cylinder design in detail
Learn how operating conditions, cushioning and sealing systems influence performance in real applications.
👉 Download the technical whitepaper
Meet us at IFAT
If you are working on waste collection or municipal applications, our team will be at IFAT to discuss technical solutions and application developments.
👉 Hall C5 – Stand 427
