There is no strict speed classification for elevators. China is customarily classified according to the following methods.
Low-speed elevators often refer to elevators with a speed lower than 1.00m/s.
Medium-speed elevator, often refers to elevators with a speed of 2.00 to 5.00m/s.
High-speed elevator, often refers to the elevator with a speed greater than 5.00-10.00m/s.
Ultra-high-speed elevators, elevators with a speed exceeding 10.00m/s.