Early escalators with wooden rungs into. Since the fire broke out after the London underground railway station in 1987, the escalator installation, most still use the original wooden rungs are into metal. Modern escalators rung with metal, each rung of the following section is triangular bracket. The bottom bracket is level two axes, Binzhou municipal foreshore escalator shaft has round. Two wheels on each side on a different track walk, by changing the distance between the tracks, so that the rung remains level. The main parameters and parts of the escalator 1. The main parameters (1) rated speed (Y /): Cascade speed under no-load conditions (m / s). Typically 0.5m / s, 0.65m / s and 0.75m / s. (2) tilt angle (α): the maximum angle with the horizontal plane running cascade configuration, wholesale escalators, typically 30 ° or 35 °. (3) lifting height (H): vertical on the basis and starting point of the escalator under the height difference (m). (4) Step width (B): Cascade nominal width (mm). (5) rung horizontal section (L): the level of imports from the escalator at running (mm). When v = 0.50m / s, L≥800mm; when v≤0.65m / s when, L≥1200mml when v≤0.75m / s when, L≥1600mm. Escalator supply, Noah Witt elevator (Online) Binzhou City municipal coast 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.