Technical challenges in components for

Rail

Elastomer components for rolling stock operate in a demanding environment: permanent vibration and shock, millions of load cycles, wide temperature variations, exposure to weathering and contact with oils and cleaning products — all under strict regulatory requirements for fire and smoke behaviour (EN 45545) and operational continuity. Our solutions are developed to meet these demands, part by part.

Domínios técnicos
Abrasion
Fatigue
Fire & smoke
Weathering
Extreme temperature
Sealing
Insulation
Anti-vibration
Desafios típicos
Sealing

Leak-tightness to liquids and gases at flanges, covers, shafts and frames, maintained under movement, vibration and thermal variation, with low compression set.

Vibration absorption

Isolation of vibration and shock between components, with controlled dynamic stiffness; reduces noise and extends equipment life.

Fire and smoke behaviour

Materials compliant with EN 45545-2 — flammability, smoke opacity and toxicity.

Fatigue resistance

Parts subjected to millions of dynamic load cycles without cracking or loss of properties.

Adhesion to concrete and metal

Reliable anchoring and adhesion to concrete and metal structures.

Temperature and weathering

Performance across a wide temperature range (e.g. -40 to +70 °C) and resistance to UV, ozone, water and climatic cycling (EN 50125-1).

Chemical resistance

Resistance to oils, fuels, hydraulic fluids, solvents, adhesives and resins, without degradation of the material.

Durability and service life

Long maintenance intervals and reliability throughout the life of the vehicle.

Soluções de engenharia para os desafios mais exigentes

Co-desenvolvemos componentes adaptados aos requisitos operacionais, normativos e de desempenho deste setor. Trabalhamos por encomenda, a partir do desafio concreto de cada cliente.

Cada projeto começa com uma análise detalhada da necessidade, feita pela nossa equipa técnica. A partir daí, desenvolvemos o conceito da solução e avançamos para a prototipagem, validação e fabrico.

01
Análise do necessidades
02
Desenvolvimento técnico
03
Testes e validação
04
Produção e acompanhamento
Fale connosco
Soluções Técnicas

Soluções técnicas desenvolvidas

Cada solução responde a um problema técnico concreto, com abordagem e aplicações documentadas.

Silentblocks + layer springs (motor)

Technical specifications

Mounts and dampers for supporting and isolating the motor, reducing vibration and noise.

Technical challenges

Resistance to dynamic loads, high temperatures, vibration and wear, ensuring a long service life.

Applications

Railway motors, transmission systems, industrial equipment and suspension and anti-vibration isolation systems.

Aplicações típicas

No items found.

Conical dampers (primary suspension)

Technical specifications

Mounts and dampers designed to absorb vibration and impact, contributing to the isolation between the bogie and the vehicle body.

Technical challenges

High resistance to fatigue, compression, deformation and temperature variations, ensuring stability and durability.

Applications

Railway suspensions, industrial vehicles, vibration-isolation systems and heavy equipment.

Aplicações típicas

No items found.

Chevron (primary suspension)

Technical specifications

Inclined mounts and dampers that provide flexibility and damping, withstanding vertical, longitudinal and transverse forces.

Technical challenges

Resistance to dynamic fatigue, deformation, wear and environmental conditions, ensuring stable behaviour throughout the service life.

Applications

Railway suspensions, heavy vehicles, industrial systems and equipment subject to vibration.

Aplicações típicas

No items found.

Silentblocks (primary suspension)

Technical specifications

Mounts and dampers that allow controlled movement between components, reducing vibration, noise and the transmission of forces.

Various dimensions.

Technical challenges

Resistance to fatigue, deformation, ageing and temperature variations, retaining the elastomeric and metallurgical properties.

Applications

Rail vehicles, suspensions and vibration-isolation systems.

Aplicações típicas

No items found.

Bellows

Technical specifications

Flexible elements for the protection, sealing and compensation of movement between components subject to displacement or oscillation.

Technical challenges

Resistance to repeated flexing, tearing, ageing, oils, extreme temperatures and environmental agents.

Applications

Railway, pneumatic systems and protective equipment.

Aplicações típicas

No items found.

Sleeves

Technical specifications

Flexible rubber components, with or without reinforcing fabric, used for the protection, connection and isolation of mechanical components or functional systems.

Technical challenges

Resistance to pressure, abrasion, flexing, temperature, oils and other chemical agents, according to the application.

Applications

Railway systems, hydraulics and pneumatics.

Aplicações típicas

No items found.

Sealing profiles / cords

Technical specifications

Profiles designed to seal between surfaces, preventing the ingress of water, dust, temperature variations and other contaminants.

Technical challenges

Dimensional stability and elastic recovery. High resistance to ageing, compression, weathering, ozone and temperature variations.

Applications

Anti-trap door systems, windows, technical enclosures, rail vehicles, cars and industrial equipment.

Aplicações típicas

No items found.

Stops / buffers

Technical specifications

Elements designed to limit movement and absorb impacts, reducing vibration and the forces transmitted to structures.

Technical challenges

High resistance to impact, compression, fatigue and wear, ensuring repeatable performance and a long service life.

Applications

Railway, doors, HVAC equipment and damping systems.

Aplicações típicas

No items found.

Membranes and diaphragms

Technical specifications

Flexible elements used to separate, seal or transmit pressure, allowing the movements of the system to be monitored and controlled.

Manufactured in various polymers, with or without reinforcing fabric.

Technical challenges

Resistance to pressure, fatigue, deformation, temperature and contact with fluids or chemical agents.

Applications

Pneumatic and hydraulic systems, railway braking, levelling, valves and pumps.

Aplicações típicas

No items found.

Grommets and cable glands

Technical specifications

Elements for routing, securing and protecting cables, providing insulation and sealing at the same time.

Technical challenges

Resistance to abrasion, vibration, temperature, humidity and environmental agents, ensuring the protection and safety of the cables.

Applications

Rail vehicles and electrical cabinets.

Aplicações típicas

No items found.

Cardan couplings

Technical specifications

Flexible cardan elements, compatible with various coupling types. Designed to isolate vibration and compensate for misalignment between rotating mechanical components.

Technical challenges

High resistance to fatigue, torsion, vibration, wear and dynamic loads, ensuring reliability in continuous operation.

Applications

Transmission systems.

Aplicações típicas

No items found.

Protective covers, caps and plugs for rolling stock

Technical specifications

Silicone, rubber, NBR or EPDM; custom-moulded caps, covers (e.g. brake front cover) and protectors.

Technical challenges

Protect parts and mechanisms against impact, dirt, moisture and external agents, with reliable fit and retention and long-term resistance to weathering and ageing.

Applications

Rolling-stock equipment, electrical components and mechanical systems.

Aplicações típicas

No items found.

Seals and gaskets for railway equipment and systems

Technical specifications

Silicone, EPDM (water) or NBR/FKM (oils and fuels); standard and custom profiles.

Technical challenges

Ensure tightness between surfaces under pressure, temperature and compression set, in contact with oils, fuels, water and cleaning products.

Applications

Hydraulic and pneumatic systems, motors, gearboxes and rolling-stock equipment.

Aplicações típicas

No items found.

Noise-damping rings

Technical specifications

Rubber-to-metal element designed to reduce the transmission of vibration and noise between mechanical and structural components.

Technical challenges

High isolation capacity and resistance to fatigue, compression and temperature variations, retaining the acoustic properties.

Applications

Railway wheelsets, motors and suspension systems.

Aplicações típicas

No items found.

Rail guards and scrapers

Technical specifications

Elements designed to remove objects, dirt and accumulated material from the rails, protecting components and surfaces during operation.

Technical challenges

High resistance to abrasion, impact, wear and adverse environmental conditions, ensuring continuous operation.

Applications

Rail vehicles.

Aplicações típicas

No items found.

Transverse stops (secondary suspension)

Technical specifications

Mounts designed to limit the transverse travel of the vehicle body, contributing to running stability and safety.

Use of rubber with a high hysteresis index.

Technical challenges

High resistance to impact, fatigue, compression and wear, withstanding repeated dynamic loads.

Applications

Rail vehicles, suspension systems and movement-control applications.

Aplicações típicas

No items found.

Axial stop (primary suspension)

Technical specifications

Mounts and dampers designed to limit the axial travel of the suspension, absorbing impacts and longitudinal forces.

Technical challenges

High resistance to impact, compression, fatigue and wear, ensuring movement control and the protection of components.

Applications

Railway suspensions, industrial machinery, damping and travel-limiting systems.

Aplicações típicas

No items found.

Valves and valve seats

Technical specifications

Components designed to control and seal the flow of fluids or gases, ensuring the correct operation of the circuits.

Technical challenges

High resistance to pressure, temperature, wear and the chemical action of fluids, ensuring tightness and reliability.

Applications

Pneumatic and hydraulic systems, railway braking, motors and fluid control.

Aplicações típicas

No items found.

Bourrelets (gangway bellows)

Technical specifications

Flexible elastomer elements that connect the ends of adjoining coaches, sealing and protecting the gangway area even during relative movement between vehicles.

Technical challenges

High resistance to tearing, abrasion, fatigue, weathering, ozone and temperature variations, ensuring a long service life and watertightness.

Applications

Rail vehicles, passenger coaches, metros, suburban trains and other transport systems with inter-vehicle gangways.

Aplicações típicas

No items found.

Aplicado também em:

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Casos de estudo na indústria

No items found.
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