Frogs
Are the structure of the turnout in which two rails intersect to provide support to the wheels to cross another track.
We manufacture frogs to specifications for the following applications; heavy haul, high speed transit and industrial needs.
The most common are:
- Solid Manganese Steel Frog
- Selfguarded Manganese Steel Frog (flange frog)
- Railbound Manganese Steel Frog
- Bolted Rigid Frog
Bolted Rigid Frog
A frog built essentially of rolled rails, with fillers between the rails held together with bolts. These kind of forgs are widely used from Class I to small mining turnouts. Rigid Bolted Frogs vary tremendously in sizes and rail sectionsn they can be used for Class I used to mining purposes.
Railbound Manganese Steel Frog
This frog consists of a manganese steel body casting fitted into and between rolled rails and held together with bolts. It is mostly used on main lines where traffic is very intense and very heavy.
Selfguarded Manganese Stel Frog (Flange Frog)
This frog is provided with guides or flanges above its running surface, which contact the tread rims of wheels fro the purpose of safely guiding their flanges past the point of the frog. This frog consists of a manganese casting and due to its peculiar design it eliminates the use of guardrails. Its use is recommended for yards and low traffic spurs where speeds do not exceed 48 km per hour.
Solid Manganese Steel Frog
A solid manganese steel frog consists of a single manganese steel casting. This frog is designed to receive connecting rails therefore special bolts should be applied. It is mostly used on main lines with medium traffic.