1. Three-roller turnstile: The three-roller turnstile is usually composed of three rotating gate arms, which are similar in shape to three cylinders connected. They are usually installed on both sides of the aisle and can be rotated open or closed at the same time to control the passage of people. In appearance, the three-roller turnstile is relatively compact, and the brake arm is generally shorter.
2. Wing gate: The wing gate is usually composed of two gate wings, which are similar in shape to the word "door". The gates are usually placed horizontally and open when a person passes. Externally, the wing gate has a long wing and can provide a large passage width.
3. Swing gate: The swing gate is usually composed of one or more brake arms, and the shape is similar to a vertical swinging rod. The swing gate arm can swing horizontally and vertically to control the passage of personnel. Externally, the swing gate has a longer arm and can provide a large channel width.
4. Speed gate: The speed gate is usually composed of one or more door wings, which are shaped like a vertically moving door. The door wings can be moved up and down to control the passage of personnel. Externally, the speed gate has a large wing that provides a wide aisle width.
Please note that there may be differences in appearance between different brands and models of turnstiles, and the above description is for general purposes only. If a more specific distinction is required, it is advisable to refer to the turnstile manufacturer's product documentation or contact a professional for consultation.