Ruihe - Model IIIa -Prestressed Mainline Sleeper

Generally,IIIa sleeper is suitable for ballasted track with standard rail gauge of 1435 mm. It`s used for radius ≥300 m of curve track and direct track ,and applies to steel rails of 60 Kg/m or 75 Kg/m. The fastener matched is Type II elastic strip. The maximum axle load is 25 t.