300 MFlex

One solution. Countless possibilities.

Challenging conditions? Extreme loads? Maximum demands? No problem for the 300 MFlex.

INDIVIDUAL. SUSTAINABLE. RELIABLE.

Slab tracks require fastening systems that absorb forces reliably and safely transfer them to the subgrade. High-speed corridors, metro lines with tight curves or heavy haul traffic with high axle loads pose very different challenges. The 300 MFlex shows its full strength here, since maximum configurability is key.

 

Whether as a direct fastening system for concrete sleepers or as 300 MFlex DFF for individual support points, the system adapts seamlessly. You define the requirements, we deliver the solution.  

 

In this way, 300 MFlex combines maximum performance with low-maintenance economy and ensures long-term safety and efficiency on every track. 

The problem meets the solution

The elasticity of the ballast is lacking on the slab track, meaning that all forces generated by train operation act directly on the rail and substructure. With increasing demands, such as higher track utilization and ever-increasing speeds, the risk of increased wear and tear and premature material fatigue increases. This leads to rising maintenance costs and to shorter maintenance intervals.

 

A fastening system was therefore needed that combined elasticity and stability, ensuring a comfortable ride, safety, and cost-effectiveness. At the heart of the new MFlex systems is our M-Generation, which brings together stability and durability in an innovative design.

 

Longer service life: natural frequency > 900 Hz

Sustainable track construction: system reduces CO₂ emissions by over 50 %

Increased safety: double tilt protection through the middle bend

Welcome to the new era of track construction!

Setting new standards with the 300 MFlex.  

Fewer interventions mean lower lifecycle costs, while vibration reduction ensures greater comfort in all areas of application. By virtue of the new clamp design, the system is ideal for demanding routes and impresses with a reduced carbon footprint and a long service life.  

 

Individually configurable: coordinating components with M3 and M7, according to the field of application

Easy installation: through pre-assembled direct fastenings

Adaptable: scalable to special construction designs or route requirements

Precise calibration: height adjustment plates for maximum and exact height regulation, and angled guide plates for optimal lateral alignment  

Dual safety: load distribution plate protects against excessive movement and reduces the risk of rail tilting and wear

Low maintenance & long service life: components, including dowels, can be replaced individually

Intelligent details for higher performance

cellentic intermediate plate: dampens vibrations, distributes loads evenly

Safety under special loads: optimized angled guide plates (Wfp) for high loads and challenging curves

Resource-saving design: reduced material usage with full stability

Impressive technical data

The technical data demonstrate the performance of the fastening system with examples, although this always depends on external factors and influences. The reference values base on the requirement standard DIN EN 13481-5; other applications are proven and can be provided based on request.

 

Convetional Rail / High-Speed (CR / HS)  Heavy Haul (HH) Urban Transportation (UTS) 
Axle load  ≤ 26 t  ≤ 35 t  ≤ 18 t  
Speed  

CR: ≤ 250 km/h  

HS: ≥ 250 km/h 

≤ 160 km/h  140 km/h  
Curve radius  

CR: ≥ 150 m 

HS: ≥ 400 m  

≥ 150m  ≥ 80 m  
Height adjustment  -4 mm/ +76 mm -4 mm/ +26 mm  +30 mm  
Gauge adjustment  ± 16 mm  ± 16 mm  ± 10 mm  

 

Precision at every support point

With the 300 MFlex DFF, we are taking flexibility and stability to a new level. As a direct fastening system for single support points, it is ideal for conventional rail, heavy haul, and high-speed lines, but also for demanding areas such as tunnels or bridges.

 

It impresses both in new construction and with steel frames as a repair support for tracks with the 300 system. The flexible system allows it to be easily integrated into existing structures, reduces downtime, and ensures a durable solution. All components, including those with polymer plates, are interchangeable, ensuring cost-effective maintenance. 

 

By virtue of its design, the 300 MFlex DFF guarantees maximum stability, even under extreme conditions. The flexible configurations are suitable for both top-down and bottom-up methods. Even under heavy loads, the system ensures permanently accurate track alignment. 

Single support point with steel frame

Maximum versatility: ideal for Metro, Conventional Rail and High-Speed, as well as for renovation

Time and cost savings: through precise replacement of damaged sleepers or support points

Always reliable: maximum track safety

Optimal force dissipation: base plate safely transfers forces to the substructure – even under heavy loads

Single support point with polymer frame

Easy delivery: lower weight reduces logistics costs and simplifies handling

Highest load capacity: secure track stability, even on tight curves

Precise & stable: for conventional top-down installation in in-situ concrete base layers, or in combination with special designs, such as IVES

  • in combination with precast elements by introducing mortar from above into the shoulders

Impressive technical data

The technical data demonstrate the performance of the fastening system with examples, although this always depends on external factors and influences. The reference values base on the requirement standard DIN EN 13481-5; other applications are proven and can be provided based on request.

 

With steel frames

Conventional Rail (CR) High-Speed (HS)Heavy Haul (HH)
Axle load ≤ 26 t  ≤ 26 t  ≤ 35 t  
Speed ≤ 250 km/h  ≥ 250 km/h  ≤ 160 km/h  
Curve radius ≥ 150 m  ≥ 400 m  ≥ 150 m  
Height adjustment -4 mm/ +56 mm  -4 mm/ +56 mm  -4 mm/ +26 mm  
Gauge adjustment ± 46 mm  ± 46 mm  ± 16 mm  

 

 

With polymer frame 

 

Conventional Rail (CR)Urban Transportation (UTS) 
Axle load  ≤ 26 t  ≤ 18 t  
Speed  ≤ 250 km/h  ≤ 140 km/h  
Curve radius  ≥ 150 m  ≥ 80 m  
Height adjustment  +30 mm  +30 mm  
Gauge adjustment  ± 10 mm  ± 10 mm  

 

 

With polymer frame, of IVES design 

 

Conventional Rail / High-Speed (CR / HS) Heavy Haul (HH)  Urban Transportation (UTS)
Axle load  ≤ 26 t  ≤ 26 t  ≤ 18 t  
Speed  

CR: ≤ 250 km/h  

HS: ≥ 250 km/h 

≤ 160 km/h  ≤140 km/h  
Curve radius  

CR: ≥ 150 m 

HS: ≥ 400 m  

≥ 150 m  ≥ 80 m  
Height adjustment  optional  partially possible  +30 mm  
Gauge adjustment  ± 10 mm  ± 10 mm  ± 10 mm  

 

cellentic & Vossloh protect: Higher performance. Less effort.

cellentic - Maximum rail deflection. Optimal load distribution. Tilt protection.

Reliable damping of structure-borne noise and forces – resistant to all environmental conditions.

 

Vossloh protect – Environmentally friendly. Maximum protection. Longer service life.

Effective corrosion protection against moisture, salt, and environmental influences for long-lasting components and reduced life cycle costs.  

 

Angled Guide Plate (Wfp) - Greater safety. Increased availability. Resource efficient.

Leading the lateral loads. Reliable protection against rail tilting and wear – even under extreme conditions or tight radii.

 

Screw-Dowel Combination 

The screw-dowel combination ensures permanently secure tensioning, even under heavy loads and extreme conditions. 

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