Railway shock absorbers

We design and manufacture shock absorbers for primary, secondary, and anti-yaw (yaw damper) railway suspension systems, using processes compliant with EN 15085 standards (railway applications – welding) and ISO 3834 (quality requirements for welding).

Typical Technical Specifications:

FILTERING

Filtering of shocks and micro-irregularities to enhance driver comfort and safety.<br>

Compatibility

Compatibility with passive or semi-active cab suspension systems.<br>

CALIBRATION

Specific calibration tailored to cab mass, mounting position, and mounting kinematics.<br>

BTT Shock Absorbers (Bus, Truck, Trailer)

Shock absorbers engineered to withstand high loads, intensive duty cycles, and wide suspension travel. Designed to ensure reliability and consistent performance even under demanding operating conditions, they are developed for heavy-duty commercial applications.<br>Available with application-specific calibration for each axle and vehicle mission profile—including urban operation, extra-urban routes, long-haul transport, and off-road or quarry/construction use—these solutions deliver optimized damping behavior, durability, and ride comfort tailored to real-world operating requirements.

Typical Technical Specifications:

Architecture

Twin-tube or gas-charged monotube architecture,

Seals<br> <br> <br>

High-resistance seals to reduce friction and fluid leakage over time.<br> <br> <br>

Bushings and mounts<br> <br> <br>

Bushings and mounts sized for dynamic loads and fatigue resistance.<br> <br> <br>

Treatments<br> <br> <br>

Anti-corrosion treatments for harsh environments and dust protection.<br> <br> <br>

Cab shock absorbers


Shock absorbers dedicated to commercial vehicle cabs, compatible with air springs or coil springs. Main function: to isolate the cab from chassis vibrations, reducing driver fatigue and improving stability.<br>

Typical Technical Specifications:

Damping curves<br> <br> <br>

Customized damping curves (compression/rebound) for comfort and stability at different speeds.<br> <br> <br>

Sealing<br> <br> <br>

Low-friction seals for fine response even to small excitations.<br> <br> <br>

Construction

Robust construction for resistance to fatigue, corrosion, and contaminants.<br> <br> <br>

integration

Possibility of integration with stroke/temperature sensors and interfacing with semi-active systems where required.<br> <br> <br>

Special shock absorbers


Tailor-made solutions for high-critical “non-standard” applications, including anti-seismic applications for infrastructure and plants. We design dampers with dedicated tuning, extended stroke, and specific materials and treatments for aggressive environments.<br> <br> <br>

Typical Technical Specifications:

Tailor made solutions

Tailor-made solutions for high-critical “non-standard” applications, including anti-seismic applications for infrastructure and plants.

Design

We design dampers with dedicated tuning, extended stroke, and specific materials and treatments for aggressive environments.

Defence sector

We develop shock absorbers and hydraulic end-of-stroke bumpers for suspensions of tracked and armored vehicles.

MISSION

Energy peak management, attitude control, and reliability in extreme operational scenarios.

Air springs


Supply of air springs for buses, commercial vehicles, and trailers. Air springs maintain ride height, improve load stability, and reduce the transmission of vibrations to the chassis.

Typical Technical Specifications:

Lobed air springs<br> <br> <br>

Lobed air springs: compact, high load-to-diameter ratio, reduced number of components.<br> <br> <br>

Diaphragms<br> <br> <br>

Diaphragms: versatile solutions for rear and front suspensions.<br> <br> <br>

Benefits<br> <br> <br>

Benefits: consistent elastic response, component protection, reduced wear and maintenance costs.<br> <br> <br>

Brake calipers and brake levers


Disc brake calipers ensure excellent modulation and consistent braking force; self-setting slack adjusters maintain the correct clearance between pad and disc, reducing manual interventions and ensuring uniform performance over time. MEI calipers are new (not remanufactured), no core return is required, and they come with a 2-year warranty from installation, thanks to a serial number that allows each individual unit to be tracked.

Typical Technical Specifications:

Maintenance

Riduzione della manutenzione programmata e tempi di fermo macchina.

Performance<br> <br> <br> <br> <br> <br>

Stable performance thanks to continuous compensation of pad wear.<br> <br> <br>

Projectation

Components designed for heavy commercial vehicles and severe operating conditions.<br> <br> <br>

Replacement seats


Seats for trucks and buses available in mechanical, pneumatic, and traditional versions. They offer options such as integrated 3-point seat belts, adjustable armrests, pneumatic lumbar support, seat heating and ventilation, and universal mounting kits.

Typical Technical Specifications:

Type

Seats for trucks and buses available in mechanical, pneumatic, and traditional versions.<br> <br> <br>

options

Integrated 3-point seat belts, adjustable armrests, lumbar support, swivel, seat heating <br> <br>

UPHOLSTERY<br> <br> <br>

Fabric or leather upholstery according to specification.<br> <br> <br>