Hydraulic & Pneumatic Sealing Solutions
High-Performance Seals for Fluid Power Applications
At Ashton Seals, we supply high-performance sealing
solutions for hydraulic and pneumatic systems, engineered to deliver reliable
performance under pressure, dynamic movement and demanding operating
conditions. From industrial machinery and mobile equipment to fluid power
systems, our seals ensure leak prevention, pressure integrity and long service
life in critical applications. We have full technical and design
capabilities and can provide one-off prototyping in addition to large volume
mass production in a wide range of profiles and sizes.
Sealing Solutions for Hydraulic & Pneumatic Systems
We provide sealing solutions for a wide range of fluid power
applications including:
- Hydraulic cylinders and actuators
- Pneumatic systems and air-powered equipment
- Industrial presses and manufacturing machinery
- Mobile hydraulics (construction, agriculture, transport)
- Automation and control systems
These systems rely on precise sealing to maintain pressure
and ensure efficient energy transfer.
Preventing Leakage
& Maintaining System Efficiency
Hydraulic and pneumatic systems operate under pressure,
meaning even small leaks can lead to performance loss or system failure. Seals play a critical role by:Preventing fluid or air leakage Maintaining system pressure Protecting internal components from contamination Ensuring efficient power transmission Hydraulic seals, for example are essential components that contain
fluid and enable the conversion of fluid power into mechanical motion.
Types of Hydraulic
& Pneumatic Seals
Fluid power systems use a combination of sealing elements including:
- Dynamic Seals
Rod seals – prevent fluid leakage from cylinders
Piston seals – maintain pressure within the system
Wiper (scraper) seals – prevent ingress of dirt and
contaminants
- Static Seals
O-rings and gaskets used in non-moving applications
- Guide & Support
Elements
Wear rings and guide strips to reduce friction and prevent
metal-to-metal contact
These components work together to ensure efficient, reliable
system operation under dynamic conditions.
Products for Hydraulic & Pneumatic Applications
We supply a comprehensive range of sealing products for
fluid power systems including:
These products are widely used across hydraulic
cylinders, pneumatic actuators and high-performance machinery.
Materials & Performance
Hydraulic and pneumatic seals must be selected carefully to
match operating conditions.
We offer materials that provide:
- Resistance to high pressure and mechanical loads
- Compatibility with hydraulic fluids, oils, and compressed
air
- Durability in dynamic and high-speed applications
- Stability across temperature variations
Common materials include:
- NBR – general-purpose hydraulic sealing
- Polyurethane (PU) – high wear resistance
- FKM (Viton®) – high temperature and chemical resistance
- PTFE – low friction and high performance
Material selection is critical to ensure optimal
performance, efficiency and service life.
Typical
Applications
Our sealing solutions are used across a wide range of
hydraulic and pneumatic systems:
- Hydraulic cylinders and actuators
- Pneumatic cylinders and valves
- Industrial presses and moulding machines
- Mobile and heavy-duty equipment
- Automation and robotics systems
These applications require precision sealing to maintain
efficiency, reliability and safety.
Industry Standards
& Performance Requirements
Hydraulic and pneumatic sealing solutions must meet strict
performance requirements including:
-
Resistance to pressure, temperature and fluid compatibility
- Compliance with ISO standards for sealing and fluid power
systems
- Performance in dynamic, high-cycle applications
- Proper seal selection ensures system reliability, reduced
downtime and long-term cost efficiency.
Why Choose Ashton
Seals?
✔ Trusted UK supplier since 1866
✔ Extensive experience in fluid
power and engineering applications
✔ Wide range of hydraulic and
pneumatic sealing solutions
✔ Technical support for correct
seal selection
✔ Bespoke sealing solutions for
specialised systems
Technical Support
& Enquiries
Need help selecting the right sealing solution for your
hydraulic or pneumatic application?
📞 Call: +44 (0) 1226
273700
📧 Email: ask@ashton-group.co.uk
Or contact our team for expert advice.
Frequently Asked
Questions
1. What are hydraulic seals used for?
Hydraulic seals are used to prevent fluid leakage and
maintain pressure within hydraulic systems, ensuring efficient power
transmission.
2. What is the difference between hydraulic and pneumatic
seals?
Hydraulic seals are designed for liquid-based systems under
high pressure, while pneumatic seals are used in air-based systems with lower
pressure and higher speed.
3. Why is sealing important in fluid power systems?
Sealing prevents leaks, maintains pressure, protects
components and ensures system efficiency and safety.
4. What materials are used in hydraulic seals?
Common materials include NBR, polyurethane, PTFE, and FKM,
chosen based on pressure, temperature and fluid compatibility.
5. Can hydraulic seals be customized?
Yes, seals can be manufactured to suit specific system
requirements, including pressure, temperature and application design.