Multi-section ladders with a climb of 24 feet or more require rest points. These are meant to protect climbers as they ascend. Previously, a fixed ladder with a cage required a landing platform at a maximum interval of 30 feet.
① The landing platform length should be 200-1200mm ② The rung width is 400mm
③ The frist rise of ladder should be 100-400mm ④ The width of landing exit is 650mm
⑤ The rise of rung is 250mm ⑥ The depth of wall bracket is 250mm
⑦ The diameter of cage hoop is 700mm ⑧ The allowed distance between land and cage is 2000-3000mm
⑨ The space between every two cage stiles is 270mm ⑩ The least allowed hight of every two cage hoops is 1500mm
Establishment of the company
Production experience (years)