Energy-saving and Energy Regeneration Technology Comfortable Commercial Glass Escalator series Commercial escalator, support 30degree and 35degree inclined angle. It has safety glass balustrade and this can save many space. It is very popular for indoor condition in current market. There are three most important parts of this kind of elevator: Geared escalator traction machine, Truss, control cabinet, step system. Certainly, brake & speed control system and safety spare parts are also necessary.