Split truss generally consists of three parts, Mengcun Hui Autonomous County escalator, namely on the platform, the central truss and the lower platform. Wherein the upper and lower platforms are relatively standard, but due to different rated speed cascade involving different horizontal sections, escalators investment, affecting the length of the straight line on the platform and the lower platform. Intermediate truss length varies depending on the lifting height. To ensure that the escalator is in good working condition, truss must have sufficient rigidity, which allows deflection is generally on the escalator at little distance between the support 1 ‰. When necessary, the escalator truss intermediate support should be set, which not only play a supportive role, and can adjust itself with the truss expansion and contraction. Drive: drive device consists of a drive sprocket, sprocket rung, handrail driving sprocket wheel or ratchet spindle and brake components. The device obtains power from the driver, the drive chain for driving the steps and handrail in order to achieve the main motion escalator, and in an emergency brake, to prevent passengers from sliding and falling, to ensure the safety of passengers. The device is mounted on the platform (upper truss) in escalator production, Noah Witt elevator (certified), Mengcun Hui Autonomous County escalator provided by the Texas Noah Witt Elevator Company. Texas Noah Witt Elevator Co. (www.dznywt.com) (www.dznywt.com) is an industry leader in Shandong Dezhou, machinery and industrial products, cooperation projects over the years, the company is implementing the scientific management, innovation and development, honesty and trustworthiness policy, and satisfy customer needs. Noah Witt Elevator leadership with the staff warmly welcome all inquiries negotiations to create Noah Witt elevator a better future.