Turnouts for Narrow Gauge Railways
A turnout, also known as a railway switch or rail switch, is a key track component that lets rail vehicles move from one track to another. It plays an important role in industrial rail systems. Turnouts guide trains or mine cars onto different tracks and keep rail traffic moving smoothly.
In mining railways, turnouts are commonly installed at track intersections, loading areas, mine shaft entrances, and material transport routes. Mining rail systems often use narrow gauge tracks, so turnouts need a compact structure and strong construction. They must handle frequent switching and operate reliably in harsh mining environments.
Main Components of a Turnout
A turnout is made up of several key components that guide rail vehicles safely from one track to another. Each part works together to ensure smooth switching and stable rail movement. In mining railways, these components must handle heavy loads, frequent use, and tough working conditions.
Switch Rails
Switch rails are the movable rails in a turnout. They shift sideways to guide the wheelset toward the selected track.
When the switch rail presses against one stock rail, it opens the route for that track while closing the other. In mining systems, switch rails must move smoothly and maintain tight contact to keep mine cars running safely.
Stock Rails
Stock rails are the fixed rails that sit next to the switch rails. They provide a stable surface for the switch rails to close against during switching.
In a turnout, the accuracy between the stock rail and switch rail is critical. Proper alignment ensures smooth wheel guidance and reduces wear during repeated switching operations.
Frog (Crossing)
The frog, sometimes called a crossing, is the point where two rails intersect. It allows the wheel flange to pass through the track crossing without derailment.
In mining railways, frogs must handle heavy axle loads and frequent traffic. Strong materials and precise machining help extend the service life of the turnout.
Guard Rails
Guard rails, also known as check rails, guide the wheelset as it passes through the frog area. They keep the wheel flange in the correct position and prevent it from striking the frog point.
Guard rails play an important role in maintaining safe operation, especially in narrow gauge tracks where wheel guidance must remain precise.
Fastening System
The fastening system secures all turnout components to the sleepers or base structure. It includes clips, bolts, base plates, and other rail fixing elements.
A reliable fastening system keeps the turnout stable under vibration, heavy loads, and repeated switching. This is especially important in mining railways, where operating conditions are often harsh.
Types of Turnouts for Mining Railways
Single Turnout (DK)
The most common design used in mining railways. It allows rail vehicles to switch from one track to another in a single direction (left or right).
Symmetrical Turnout (DC)
Both routes diverge evenly from the centerline, with no distinction between straight and diverging paths. It is often used in underground mines and confined spaces due to its compact layout.
Crossover Turnout (DX)
Used to connect two parallel tracks, enabling vehicles to switch between tracks. It usually consists of two single turnouts and connecting rails, and is widely used in mining yards and underground stations.
Three-way Turnout (DS)
A special compact turnout that splits one main track into three routes. It is widely used in underground mines where space is extremely limited.
Maintenance of Railway Turnout
Proper maintenance is essential to ensure the long-term performance of turnout systems.
Routine maintenance usually includes:
- checking fastening components for tightness
- inspecting switch rail movement
- cleaning debris from the frog area
- lubricating moving parts
- verifying alignment of guard rails
Regular inspection helps prevent excessive wear and ensures smooth switching performance.
Why Choose Glory Track Turnouts?
Industry Experience
Glory Track has extensive experience supplying rail components and turnout systems for industrial railways and mining projects.
Custom Engineering Support
Turnouts can be manufactured according to specific rail profiles, track gauges, and layout requirements.
Reliable Manufacturing Quality
Strict production and inspection processes ensure stable performance in demanding operating environments.
Request a Quote for Turnout
Glory Track provides customized turnout solutions for narrow gauge rail systems, tunnel transport lines, and industrial rail networks.
Contact our team today to discuss your project requirements and receive a tailored quotation.