RACK AND PINION MATERIALS HOIST. MEDIUM SERIES The base is equipped with level screws and a safety enclosure. The cabin is equipped with two folding doors for loading and one ramp door for unloading, all of them can be dismantled and interchanged. The sections, cabin, enclosure, etc. are all galvanised in hot-dip steel. Over-speed emergency brake installed on an independent pinion. The mast sections and many of the components are compatible with our work platforms PW-18/35.