IP 400 CX buffer meets the requirements of the EN 15551 standard, the UIC 526-1, UIC 573 leaflets and the RID regulations concerning transport of hazardous materials. The main advantage of this solution is the possibility of assembling the buffer without the interference with the wagon’s buffer beam. Type IP 400 CX buffers feature category C shock absorbers, and the crash energy is absorbed by expanding the buffer sleeves. Owing to the unique design, the buffer’s elastic area can continue functioning even after a collision. The buffer has good working parameters and operational reliability within the temperature range from -40°C to +50°C. The has the EBA and TSI certificates.