Hydraulic Seals: From Simple Detail to Strategic Component

In advanced hydraulic and pneumatic applications, a seal is never just a basic trim element. It is a precision technologic component engineered to operate under extreme conditions, ensuring stability and consistent hydraulic sealing over time.

The performance of a sealing system is determined by a complex interaction of physical-chemical and dynamic variables:

• Pressure-Velocity Loads: Operating pressure spikes, hydraulic shock (water hammer), and rod sliding speeds.
• Tribology and Friction: Wear phenomena, extrusion resistance, and elimination of the stick-slip effect for smooth motion.
• Thermal and Chemical Compatibility: Tolerance to hydraulic fluids (mineral oils, synthetic fluids, water-glycol) across critical temperature ranges.
• Surface Finish: Metal roughness grade and dynamic mating tolerances.

When a sealing solution is not correctly selected or designed according to calculation specifications, the consequences extend far beyond simple leakage or fluid loss: irregular piston movement, cavitation, rapid component degradation, loss of volumetric efficiency, and costly sudden downtime are almost always attributable to a failure in the sealing system.

The ATS Approach: Engineering and Specialized Consulting

Sealing Solutions and Engineering Polymer Materials for Industry

Investing in an engineered seal means targeting the true core of mechanical performance. Integrating dedicated profiles and technical materials optimizes the cylinder's operating lifespan:

• High-Performance Polyurethane (PU): High resistance to wear, tearing, and extrusion at high pressures.
• Filled PTFE (Teflon®): Minimal friction coefficient, maximum chemical resistance, and absence of stick-slipeven at extremely low speeds.
• Technical Elastomers (NBR, FKM, HNBR): Maximum elastic memory and static/dynamic sealing across a wide temperature range.

How much do sealing systems truly impact the performance of a high-performance system?

In modern industrial contexts, the answer is clear: the difference lies not only in the nominal power of the machinery, but in the capacity of each individual component to work in perfect synergy.

For this reason, ATS S.r.l. does not view the sealing system merely as a purchasing detail, but as an integral part of mechanical design. From the selection of rod seals, piston seals, guide rings, and wipers to the development of custom, made-to-spec solutions, we provide the appropriate technical support to ensure reliability, durability, and operational continuity for any hydraulic circuit.