Hydraulic Rail Tensioner / Stretching Machine

The YLS-900 Hydraulic Rail Tensor is a high-capacity apparatus critical for Continuous Welded Rail (CWR) operations, specifically for stress relief and the laying of new long-welded rails. The primary function is to forcibly stretch the rail to the required length at a temperature below the locked rail temperature, ensuring the rail achieves a true stress-free state before being re-locked. This process is essential for preventing thermal buckling and ensuring track stability. The YLS-900 delivers a massive maximum pulling force of 900 kNand is compatible with heavy rail profiles up to 75 kg/m. Its precise hydraulic control, often powered by a Honda GXV160 internal combustion pump, offers safe, smooth, and measurable operation, surpassing the limitations of older mechanical methods.