Product Overview
The Automatic Sliding Gate Opener Kit with 20ft Gear Rack & Infrared Protection is a complete, ready-to-install gate automation solution from Hangzhou Lijia Motor Co., Ltd. (Lijia Motor), designed for residential driveways, commercial entrances, and industrial access points. This all-in-one kit combines a high-torque brushless DC motor, a 20-foot steel gear rack, and an infrared safety sensor system to deliver intelligent, safe, and reliable gate operation for sliding gates weighing up to 800 kg.
Hangzhou Lijia Motor Co., Ltd. is a professional manufacturer with over 20 years of experience in the design and production of door opening machines and access control systems. The company specializes in garage door openers, sliding gate openers, swing gate operators, and AC/DC motor controllers. With more than 90% of its products exported to over 25 countries, Lijia Motor has established a global reputation for quality, reliability, and technological innovation. The company holds ISO9001:2015, CCC, CE, and SGS certifications, and its products have been recognized as "Zhejiang Market Cross-Century Excellent Brand" and "Zhejiang Province Excellent Science and Technology Products."
The Automatic Sliding Gate Opener Kit represents the culmination of this expertise, offering a comprehensive solution that addresses every aspect of gate automation-from mechanical drive to intelligent control to safety protection.
Complete Kit Contents
This kit is not merely a gate motor; it is a complete, turnkey automation system that includes everything needed for professional-grade installation:
| Component | Description |
|---|---|
| Gate Motor Unit | High-torque DC brushless motor with built-in control board |
| 20ft Gear Rack | Steel gear rack in modular sections with mounting hardware |
| Infrared Sensor Set | Photocell safety beam system with installation accessories |
| Remote Controls | Two rolling-code transmitters (4-button configuration) |
| Limit Magnets | Magnetic limit switches for open/close position detection |
| Mounting Hardware | Universal adjustable brackets, base plate, and fasteners |
| Control Box | Built-in control panel with programming buttons and terminals |
| Manual Release Key | Emergency manual operation mechanism |
| Installation Guide | Illustrated step-by-step manual |
This comprehensive packaging eliminates the need for separate purchases and ensures that all components are designed to work together seamlessly, reducing installation time and compatibility concerns.
Core Features and Benefits
Intelligent Control System
The heart of the gate opener is its microcomputer-controlled digital system, which provides a level of intelligence that sets it apart from conventional gate motors .
Automatic Control Process Setting: The control board automatically identifies gate operating status and optimizes parameters based on preset opening/closing speeds and hold-open times. Once installed and commissioned, the gate opener maintains optimal performance over extended periods without requiring frequent manual intervention .
Rolling Code Remote Technology: The included remote controls utilize rolling code technology, generating a unique code for each operation. This effectively prevents signal copying and code theft risks, ensuring home and property security .
Auto-Close Timer: A programmable auto-close function allows the gate to close automatically after a preset delay (15, 30, or 60 seconds), preventing accidental neglect and enhancing security .
Pedestrian Mode: A partial-opening mode allows the gate to open just enough for a person to pass through, improving convenience and energy efficiency for foot traffic.
Multi-Function Control Options: In addition to the standard remote control, the system supports optional accessories including keypad locks, Bluetooth APP control, Wi-Fi modules for smartphone operation, and fingerprint recognition modules. Dry contact interfaces allow for integration with external buttons, card readers, or building management systems .
Robust Mechanical Design
The mechanical integrity of the gate opener ensures reliable, long-term operation even under demanding conditions.
High-Torque Brushless DC Motor: The kit utilizes a high-efficiency 24V DC brushless motor that offers three key advantages over traditional AC motors: long service life (designed for over 10,000 complete open/close cycles), high torque output, and low noise operation. The absence of carbon brushes eliminates wear issues, significantly extending motor lifespan while operating at noise levels of ≤56 dB-ideal for residential environments where quiet operation is essential .
Gear Rack and Pinion Drive: Unlike chain or belt drives, the gear rack and pinion system provides positive engagement with no slip, excellent synchronization, and high thrust force. The 20-foot steel gear rack features high-frequency quenched tooth surfaces for exceptional wear resistance and durability. This drive system is particularly suitable for long-travel, heavy-load sliding gate applications .
Weather-Resistant Construction: The motor housing is rated IP44, providing protection against splashing water and dust ingress. The control board features conformal coating to prevent short circuits in high-humidity environments. The system operates reliably across a temperature range of -20°C to +50°C, suitable for most climates .
Manual Release Mechanism: A standard manual release key is included for emergency situations. In the event of a power failure or system malfunction, the user can insert the key and rotate it 90 degrees to disengage the motor from the gate drive, allowing manual push/pull operation to ensure access is never blocked .
Comprehensive Safety Protection
Safety is paramount in any automatic gate system. This kit incorporates multiple layers of protection to safeguard people, property, and vehicles.
Infrared Photocell Protection: The included infrared sensor set creates an invisible safety beam across the gate opening. If an obstacle-a person, pet, or vehicle-breaks the beam during gate closing, the gate immediately reverses to the open position, effectively preventing entrapment and collision .
Anti-Crush Sensor Technology: During gate operation, built-in sensors continuously monitor resistance changes. If an obstacle is detected or the gate encounters unexpected resistance, the system instantly triggers a reversal or stop command. Even if someone forcibly pushes or pulls the gate, the control system maintains program integrity, ensuring operational safety .
Electric Lock Function: The gate opener features a unique electric lock control function, allowing access restriction as needed. In home mode or during nighttime hours, the electric lock automatically engages to prevent unauthorized external opening; when frequent access is required, it can be switched to free passage mode .
Thermal Protection: The motor winding incorporates thermal protection to prevent overheating during extended operation or unusual load conditions, automatically shutting down the motor until safe operating temperatures are restored .
Backup Power Capability: An optional battery pack is available for continued operation during power outages. When external power fails, the system automatically switches to backup power to maintain gate function, supporting multiple complete open/close cycles and preventing situations where vehicles or people become trapped .
Technical Specifications
| Parameter | Specification |
|---|---|
| Model | D-800B (standard kit configuration) |
| Power Supply | AC 230V 50Hz / AC 120V 60Hz (with transformer to 24V DC) |
| Motor Type | Brushless DC motor |
| Output Torque | 22 N·m |
| Max Gate Weight | 800 kg |
| Gate Speed | 12 m/min |
| Limit Switch | Magnetic (NC/NO) |
| Noise Level | ≤56 dB |
| Operating Temperature | -20°C to +50°C |
| Protection Class | IP44 |
| Certification | CCC, CE |
| Gear Rack Length | 20 ft (6.1 m) |
| Infrared Sensor | Included |
Note: Lijia Motor offers a range of models with varying specifications. Higher-capacity models (D-1000B through DO-2000B) are available for gates weighing 1000 kg to 2000 kg, with correspondingly higher torque ratings and AC 380V power options .
Installation and Setup
This kit is designed for straightforward DIY installation, requiring no welding or specialized tools .
Step 1: Prepare the Gate and Site: Ensure the gate slides freely along its track and that the installation area is level. Measure and mark the mounting position for the motor base plate.
Step 2: Install the Base Plate: Place the motor base plate on the ground and level it. Use a hammer drill to create holes, insert expansion bolts, and tighten. No concrete pouring is required, significantly reducing construction time .
Step 3: Mount the Gear Rack: Secure the 20-foot gear rack sections to the side of the gate at the appropriate height so they engage with the motor pinion. The kit includes self-tapping screws or weldable brackets; users can choose the method based on gate material (steel, aluminum, wood). The rack length should cover the full travel of the gate .
Step 4: Mount the Motor and Connect Wiring: Slide the motor onto the base plate, ensuring the gear engages correctly with the rack (gap of approximately 1-2 mm). Connect motor wires and limit magnet signal wires to the corresponding ports on the control board. The board has clear labels such as "MOTOR+", "MOTOR-", "OPEN LIMIT", "CLOSE LIMIT" .
Step 5: Connect Power and Pair Remote: Connect power supply (220V AC or optional battery backup). Pair the remote control using the learning button on the board .
Step 6: Set Limits and Adjust Parameters: Manually push the gate to fully open and fully closed positions, then attach limit magnets to the gate at the corresponding detection points so the motor stops automatically. Adjust the potentiometers on the control board to set appropriate "opening/closing force" and "slow stop distance," ensuring sensitive reversal upon encountering obstacles (anti-crush function) .
The entire process requires no programming or complex multimeter measurements-simply follow the illustrated guide.
Typical Applications
The Automatic Sliding Gate Opener Kit with 20ft Gear Rack is suitable for a wide range of access control scenarios:
Residential Applications: Villa courtyard entrances, private driveway gates, and garage access points for single-family homes.
Commercial Entrances: Office building gates, parking lot entrances, retail store loading areas, and commercial property access points.
Industrial and Agricultural: Factory entrances, warehouse access gates, farm and ranch property gates, and remote facility access control.
Community and Institutional: Gated community entrances, school and hospital parking areas, and municipal facility access points.
The 800 kg capacity and 20-foot rack length make this kit particularly well-suited for standard residential and light commercial sliding gates with spans up to approximately 6 meters.
Why Choose Lijia Motor's Sliding Gate Opener Kit?
Selecting this product means choosing a solution backed by more than two decades of specialized manufacturing expertise:
Complete Turnkey Solution: Everything needed for installation is included-motor, 20ft gear rack, infrared sensor, remotes, and mounting hardware-eliminating the hassle of sourcing separate components.
Advanced DC Brushless Technology: The brushless motor offers superior longevity, energy efficiency (approximately 30% more efficient than AC motors), and quiet operation compared to conventional alternatives .
Comprehensive Safety System: Infrared photocells, anti-crush sensors, thermal protection, and electric locking provide multiple layers of defense against accidents and unauthorized access.
Proven Quality Certifications: Products are certified under ISO9001:2015, CCC, CE, and SGS, with rigorous load testing, durability testing, and safety function verification before shipment .
Global Export Experience: With more than 90% of products exported to over 25 countries, Lijia Motor has the logistics infrastructure and after-sales support capabilities to serve international customers reliably.
OEM/ODM Capability: The company offers comprehensive customization services, including custom branding, packaging, colors, and materials to meet specific customer requirements.
Backup Power Ready: The system supports optional battery backup, ensuring gate operation continues during power outages-a critical feature for security and convenience.
For homeowners, property managers, and installers seeking a reliable, safe, and feature-rich sliding gate automation solution, the Automatic Sliding Gate Opener Kit with 20ft Gear Rack & Infrared Protection from Hangzhou Lijia Motor Co., Ltd. represents an excellent investment in convenience, security, and long-term dependability.
