The main parameters about our standardElectricalinward gliding bus door for city bus Operation Temperature-40°C - 80°COperation Pressure90-125 psiOperation VoltageDC12V or DC24VLife Cycle250,000Door closing or opening time3-5 secondsStyleSingle or Double Slide Glide 1.Auto-operation, Emergency release, Sensitive edge 2.we have past ISO 9001-2000 certifications and ISO/TS16949:2000 certifications 3.we still have eletrical swing in bus door at your choice. Here is the picture of city bus door actuator. Ivy Machinery, the leading bus door system/mechanism manufacturer in China, we can provide the optimum door system/mechanism for city bus.