STK-XJ Adhesive Insulation Joint

The on-site bonding insulation joint of steel rails is suitable for the automatic block track circuit separation section of continuous welded rail (CWR) lines, and is one of the key technologies for laying rail section on CWR lines. The product complies with the railway technical standard "Rail Bonding Insulation Joint" (TB/T2975-2018) and relevant regulations of CRCC (China Railways Test and Certification Center) product certification.

The STK-XJ on-site adhesive insulation joint comes in two specifications, STK-XJ50 and STK-XJ60, and is suitable for the construction, installation, and daily maintenance of new high-speed and conventional lines with a rail capacity of 50 kg/m and 60 kg/m. The product meets high standards and has wide applicability.

This product has been independently developed and produced since 2003, promoted for use on Chinese railway lines in 2008, and passed CRCC product certification in 2013. Up to now, this product has been continuously used in Chinese railways for nearly 20 years, with a total sales of nearly 90,000 units.

This product has been successfully applied on various railway lines in China and has withstood various environmental tests such as extreme cold, humid heat, sandstorms, and frozen soil.

1.Main technical indicators（STK-XJ60）

2. Product features

① High stiffness of the clamp

The clamp plate is made of 40Cr material, which strengthens the overall structure of the rail insulation joint.

② High bolt strength

The use of 12.9 grade M24 * 150 high-strength large hexagonal bolts has improved the safety factor of the joint.

③ Easy assembly

The groove shaped steel plate is made of 304 stainless steel, which does not require on-site polishing, is easy to install, and has good bonding effect.

④ Short curing time

The initial curing time at room temperature is less than 45 minutes, and the vehicle can be driven normally after the on-site bonding construction is completed.