Motor Applications in Intelligent Turnstile Gates

1. Component Overview

Intelligent turnstiles are key components of modern entrance control systems, integrating electromechanical design, control logic, and sensor technologies. Core components include:

Chassis Structure: Made from stainless steel or aluminum alloy with tripod arms, offering excellent impact resistance and corrosion protection for stable operation under high-frequency usage.

Recognition & Control Module: Integrates facial recognition, QR code scanning, and IC/ID card readers to support multiple authentication methods, improving efficiency and security.

Drive System: The core includes motors and transmission units that control the arm's start, stop, and direction. Motor performance directly affects the fluidity, precision, and reliability of gate actions.

Sensing & Detection: Embedded IR sensors, position detectors, and overpass sensors monitor user passage and provide anti-pinch and anti-tailgating safety features.

Power & Safety System: Equipped with UPS, emergency stop, and overvoltage protection to ensure continued operation and safety under faults or power loss.

2. Working Principle

The turnstile operates through close coordination between motor drive and multi-layered control logic.

When a user approaches, the recognition system activates facial, QR, or card-based verification. Once authenticated, the controller sends a signal to the motor, which begins rotation and engages the linkage mechanism to slowly open the tripod arms, creating a passable path.

During passage, infrared sensors track the person’s location, dynamically adjusting the rotation angle and speed to prevent contact or pinching.

Once the user exits, the control system detects the clearance and commands the motor to reset the arms. If authentication fails or an unauthorized attempt occurs, the motor locks the arms or triggers an alarm to block entry.

Throughout, the motor must deliver high responsiveness, positioning precision, and stable torque output to ensure reliable and efficient operation.

3. Role of Motors in the System

Motors are not only the direct source of power for rotating arms but also play key roles in precise control, safety enforcement, and real-time response:

Core Driver of Movement: Motors control forward/reverse rotation, timing, and arm movement precision—ensuring smooth, natural transitions during user access.

Agile Dynamic Response: High-quality brushless DC motors support rapid start/stop and flexible braking, adapting to real-time sensor input to enhance user experience.

Torque Management: Features such as soft start and torque limiting prevent abrupt motion or injury, while offering auto-lock in case of forced access or misuse.

Durability & Low Maintenance: Designed with wear-resistant components and thermal management for long-term stable use under frequent duty cycles.

Integrated Smart Control: Motors with encoders and communication modules support real-time data exchange with controllers for remote monitoring and coordinated control.

4. Custom Motor Solutions

Given the high-frequency use, quick response, and safety demands of turnstile gates, we offer specialized motor drive solutions that ensure performance, low noise, and system stability:

For example, the GPG-BL50 BLDC motor offers a compact size, high torque output, and quiet operation—widely used in multi-lane, high-speed turnstiles to ensure smooth transitions and increased throughput.

The GPG-PM42 permanent magnet synchronous motor excels in precise positioning and anti-interference, ideal for high-security use requiring accurate start/stop control.

Our systems support closed-loop controllers and high-resolution Hall or magnetic encoders, enabling real-time speed feedback and automatic position calibration—improving reliability and emergency readiness.

Customized options are available for voltage ratings, mounting interfaces, and ingress protection (IP65), suitable for metro stations, office buildings, and industrial campuses.