WTJ5080JKT passenger stairs are modified with the second class chassis. The product is equipped with advanced electrical control system, and the platform has two sets of safety devices for docking aircraft and height display circuit. The product is beautiful in appearance, convenient in operation, safe and reliable in use. The product ladder lifting platform height is set to 2400mm ~ 4900mm, and has a fine-tuning function to adjust the height error between the passenger ladder platform and the aircraft door, which is suitable for the use of A300, A310, A320, A330, A340, B737, B747, B757, B767, B777 and other models