CF 49 S49 Rail Fishplates

In railway engineering, maintaining structural integrity at track joints is critical for network safety and operational efficiency. CF 49 rail fishplates (also widely designated as S49 or 49E1 joint bars) are specialized steel plates engineered to securely connect the ends of two matching rail profiles.

By fitting precisely into the "web" space of the rail, these vital railway joint bars wedge tightly between the rail head and the base. This precise mechanical alignment prevents joint deflection, distributes dynamic axle loads evenly, and ensures long-term structural track continuity under heavy traffic conditions.

Technical Specifications & CF 49 Fishplate Dimensions

The exact dimensions of a CF 49 fishplate vary depending on regional rail network requirements and strict international standards, such as DIN 5902 or EN 13674-1. Below is an overview of the standard technical parameters utilized in modern track infrastructure:

Total Lengths Available

· 580 mm / 630 mm: Standard 4-hole variants optimized for conventional regional transit and freight networks.

· 790 mm / 820 mm: Extended 6-hole variants engineered for high-load stability and heavy-haul corridors.

· 245 mm: Specialized short variants (such as the Fl 14c) used for unique layouts or low-clearance track systems.

Mechanical Parameters & Drilling Configurations

· Hole Configuration: Manufactured with either 4 or 6 bolt holes to align flawlessly with standard track drilling parameters.

· Bolt Hole Diameter: Typically designed to accommodate 26 mm or 30 mm high-strength track bolts.

· Mass per Piece: A single standard 4-hole fishplate weighs approximately 9.7 kg to 17.4 kg, depending on whether it is a standard profile or an extra-thick industrial variant.

High-Durability Steel Material Grades

Because rail joints experience continuous, violent impact forces from passing wheels, material composition is the deciding factor in preventing premature fatigue and joint cracking. Premium 49E1 rail fish plates are manufactured using high-durability steel options, including:

· Q355/45# Carbon Steel: Offers excellent structural balance for standard operations.

· 45Mn Manganese Steel: Provides enhanced hardness and wear resistance.

These material grades ensure that the mechanical joint can withstand decades of harsh environmental exposure and intense heavy-haul stresses.

Premium CF 49 Manufacturing by Signum Rail Fasteners

When sourcing safety-critical track components, precision and strict adherence to international standard tolerances are paramount. Signum Rail Fasteners (Kunshan Signum Machinery Technology Co., Ltd.) is a leading global manufacturer specializing in the production of high-quality CF 49 / S49 rail fishplates.

Utilizing advanced forging, rolling, and precision CNC machining technologies, Signum Rail Fasteners ensures that every joint bar delivers perfect geometric conformity to the S49 rail profile. Their rigorous quality control systems guarantee reliable mechanical performance, making them a trusted supplier for major rail transit networks, industrial sidings, and heavy-haul freight systems worldwide.

Why Exact Profile Matching Matters

Using a dedicated CF 49 / S49 joint bar from an established manufacturer like Signum Rail Fasteners guarantees a seamless geometric transition between rails. Perfect alignment minimizes vertical and horizontal step-displacements, drastically reducing mechanical wear on rolling stock wheels and driving down ongoing track maintenance costs.

📞 Contact Signum Rail Fasteners Today

Need reliable, certified railway components for your next project? Get in touch with the engineering experts at Kunshan Signum Machinery Technology Co., Ltd. for a custom technical consultation and competitive pricing on your bulk CF 49 rail fishplate requirements.