Pre embedded sleeve is a section of nylon sleeve with good mechanical strength, heat resistance, wear resistance, and high rigidity that is embedded in the fixing hole of the track stud in the sleeper. It has the advantages of simple and convenient construction, long service life, etc., and can improve the durability, insulation, environmental protection level, and comprehensive technical and economic indicators of sleepers.

Specifications: φ 25.5* φ 13 * 12 * 133
Material: PA6
External Fire Pattern: VD134 # 27
Tensile strength ≥ 150MPa;
Bending strength ≥ 200MPa;
Notched impact strength ≥ 80kJ/㎡;
Tensile strength ≥ 60kN