One-armed rotary endoscopy ceiling-mounted pendant (YDT-QJ-1) is an essential part of modern laminar flow operating room. This unit not only have high load capacity to carry other equipment but also provide space for numerous service outlets, e.g. medical gas, vucuum, electrical power and communication ports. Furthermore, configured with pneumatic braking, so that can be rotated without drifting. This pendant create a safer and more flexible environment for patients and staff.