XIWEI machine room-less elevator knows very well of environment protection ideas. It saves energy and reduces consumption. Passenger elevators saves the building area. It enhances the design freedom. It gives a full play of green human-centered concept. Compared with same level geared elevator, it saves 25% of electric energy and 10% of building area. XIWEI elevator breaks through a must of machine room. It provides limited space in modern building with infinite creativities.