Premium Turnout Rail Support for Long-Lasting Performance in Railways

• Customization: Available
• After-sales Service: One Year
• Warranty: One Year
• Customized: Railway Tools
• Certification: ISO9001
• Type: Railway Tools
• Transport Package: Export Wooden Box
• Origin: Handan, Hebei Province, China
• Production Capacity: 10000

Product Description

Basic functions and core roles
Turnout rail braces are key reinforcing components in railway turnout sections and mainly undertake the following functions:
Lateral force resistance
When the train passes through the turnout, the rail brace can effectively resist a lateral thrust of up to 80-120kN, preventing the base rail from overturning outward. Measured data show that the lateral displacement of the turnout area can be reduced by more than 60% after installing the rail supports.
2. Gauge maintenance
Through the mechanical limit action, the gauge deviation in the turnout area is controlled within the range of +3/-1mm to ensure the safety of train operation. Especially at small-numbered turnouts (such as turnouts No. 9), the effect is more remarkable.
3. Vibration energy conduction
The impact vibration of the wheel-rail is conducted to the turnout pillow. Combined with the elastic cushion layer, the vibration acceleration in the turnout area can be reduced by 40%, thereby extending the service life of the components.

Application scenarios
1. High-speed turnout section
Adopt integral cast alloy rail supports (such as ZG270-500)
Preload requirement: ≥50kN on one side
The Beijing-Tianjin Intercity Railway uses hydraulic rail braces to achieve the function of dynamic distance adjustment
2. Heavy-duty line turnouts
Double-row rail support design (spacing ≤600mm)
The material selected is NM400 wear-resistant steel
The dedicated rail support for the Daqin Line has a service life of 8 years for a throughput of 200 million tons
3. Urban rail transit
Light stainless steel rail supports (06Cr19Ni10)
The fire resistance rating meets the EN45545 HL3 standard
Shanghai Metro Line 14 adopts maintenance-free self-locking rail braces

Special environment application
Modified rail supports with a low-temperature impact energy of ≥27J at -40ºC in high-cold regions
Coastal environment: Super austenitic stainless steel (254SMO) rail supports
Small radius curve: Adjustable rail support (adjustment range ±5mm)

Key points for selection and maintenance
1. Selection principles
High-speed railways: Dynamic distance adjustment type should be given priority
Heavy-duty lines: Double-row reinforced type must be adopted
Urban rail transit: Consider the requirements for vibration reduction and noise reduction
2. Installation specifications
The deviation of the bolt preload is ≤±5%
The roughness of the contact surface Ra is ≤12.5μm
Tighten it in three steps using a torque wrench
3. Maintenance strategy
Daily inspection: Measure the gauge changes weekly
Professional inspection: Quarterly ultrasonic flaw detection
Replacement standard: The wear exceeds 20% of the original thickness