The double-door full-height turnstile is an advanced version of the full-height turnstile, integrating two core advantages: a double-door interlocked safety transition chamber and dual-channel parallel control. While retaining the 1.8-2.2 meter fully enclosed physical barrier of the traditional full-height turnstile, it further enhances security and passage efficiency, making it the preferred passage management equipment for high-traffic, high-security locations.

I. Core Definition and Structural Features

The double-door full-height gate consists of two independent full-height rotating barrier systems, forming a “front and rear double-door” structure through precise linkage control:

• Double-door interlocking design: The front and rear doors form a closed transition space. The second door is only allowed to open after the first door is completely closed, completely preventing tailgating, backflush, and forced entry.
• Barrier configuration: Each door is equipped with 3/4/5 stainless steel barrier bars (commonly 4 bars in a cross shape, 90° rotation), with a diameter of 50-80mm and a length consistent with the door height.
• Overall specifications: Standard height 1.8-2.2 meters, double-passage width approximately 1400-1600mm, single-passage width 550-600mm, suitable for normal human passage dimensions.
• Material and process: 304/316 stainless steel frame and barrier bars, brushed surface treatment, corrosion-resistant and impact-resistant (can withstand 500N). (Impact force above)
• Core Components: Dual-mechanism system, interlock control module, identity recognition device (card reader/facial recognition), direction indicator, LED status lights, infrared sensor, emergency unlocking mechanism

II. Working Principle (Dual-Door Interlock Process)

1. Pre-verification Stage: Pedestrians complete identity verification at the first door (card swipe/facial recognition, etc.)
2. First Door Opening: After successful system verification, the first door rotates 90°/120°, allowing pedestrians to enter the transition cabin.
3. Door Reset and Locking: After pedestrians enter, the first door automatically resets and locks, forming a closed transition space.
4. Second Door Authorization: After the system detects that the first door is fully closed, it automatically authorizes the second door to unlock.
5. Second Door Opening: The second door rotates to open, and automatically resets and locks after pedestrians pass, completing the single-person passage process.
6. Abnormal Handling:
   * Tail-following into the transition cabin: The system immediately locks both doors and sounds an alarm.
   * Power Failure: Both doors automatically unlock to ensure emergency evacuation.
   * Anti-pinch Protection: Automatically stops rotation and reverses to reset upon encountering resistance.

III. Core Functions and Advantages (Dual-Door Exclusive Features)

Functional Features                                                        Detailed Description

Dual-Door Interlock for Ultimate Protection:  The transition cabin design creates a “safety buffer zone,” completely eliminating tailgating, climbing, crawling, and reverse passage, achieving a security level far exceeding that of a single-door full-height gate.

Dual-Channel Parallel Control:Two independent systems can be configured with separate passage rules (e.g., entry from one side and exit from the other), increasing passage efficiency by 50%-100%, suitable for high-traffic areas.

Intelligent Linkage Control:Supports seamless integration with video surveillance, alarm systems, and visitor management systems, enabling “identity verification” and real-time alerts for abnormal behavior.

Multiple Safety Guarantees:Four safety mechanisms—anti-pinch, anti-collision, anti-reverse, and anti-tailgating—combined with LED status indicators and buzzer prompts, ensure safe passage.

Flexible Operating Modes:Multiple combination modes can be set, including two-way card reading, one-way card reading + one-way free passage, and two-way prohibition, to meet different scenario needs.

Strong Environmental Adaptability:Waterproof and dustproof rating IP54 and above, allowing stable operation in various harsh indoor and outdoor environments (high temperature, low temperature, humidity, dust).

Self-Detection and Maintenance:Built-in fault diagnosis system monitors the door status in real time, providing alarm prompts for easy and rapid fault location and troubleshooting.