cold storage sliding door electric control system
Built with industrial-grade components and a waterproof, low-temperature resistant structure, the system features adjustable speed, electronic limit positioning, fault self-diagnosis, and overcurrent/overheat protection. It supports button, remote control, infrared radar, and access linkage control, compatible with single/double-leaf sliding doors of various sizes. Easy to install, maintain, and retrofit, it is widely used in cold rooms, freezers, food processing warehouses, logistics centers, and pharmaceutical storage facilities.
Stable and Reliable Operation Performance
Stability is the most basic and critical feature of the cold storage sliding door electric control system. The system adopts industrial-grade electronic control components and circuit design, which can maintain normal and stable operation in a long-term low-temperature, high-humidity and even slightly corrosive cold storage environment. The internal circuit has undergone strict moisture-proof, anti-condensation and low-temperature resistance treatment, avoiding short-circuit, signal failure or control delay caused by environmental changes. The drive motor matched with the system has strong overload resistance and continuous working capacity, supporting high-frequency opening and closing operations without obvious heat generation or performance attenuation. Whether in the low-temperature cold storage at minus 18 degrees Celsius or the quick-freezing warehouse at minus 30 degrees Celsius, the control system can maintain a consistent response speed and action accuracy, ensuring that the cold storage sliding door is always in a controllable state, and there will be no door jamming, slow operation or sudden stop during use. At the same time, the system has strong anti-interference ability, and will not be affected by other electrical equipment in the cold storage area, maintaining stable signal transmission and efficient execution efficiency.
Safe and Comprehensive Protection Function
Safety protection runs through the whole design and application process of the cold storage sliding door electric control system, effectively avoiding potential risks such as personnel injury and equipment damage. The system is equipped with an obstacle detection and rebound protection device. When the door encounters people, goods or other obstacles during the closing process, it can immediately stop closing and automatically rebound to the fully open state, preventing collision and pinching accidents. In addition, the system has an emergency stop function, equipped with an obvious emergency stop button, which can be manually triggered at any time in special circumstances to immediately cut off the power and stop the door action, ensuring the safety of on-site operators. For the special environment of cold storage, the system also has power-off protection and manual override function. In case of sudden power failure, the electric control system will automatically unlock, allowing the staff to open or close the sliding door manually, avoiding the problem of people being trapped or goods being unable to be transported due to power failure. The control panel and wiring part of the system adopt insulated and anti-electric shock design, which meets the safety standards of industrial electrical equipment and eliminates potential dangers such as electric leakage.
Intelligent and Efficient Control Mode
The cold storage sliding door electric control system integrates intelligent control technology, realizing diversified, convenient and efficient door opening and closing methods. The system supports multiple control methods, including button control, remote control, radar induction, photoelectric induction and interlock control with forklift or conveyor system, which can be selected and set according to the actual use needs of the cold storage. The automatic induction mode can sense the approach of personnel or transport vehicles in advance, automatically complete the door opening action, and automatically close after the personnel and vehicles pass, reducing the manual operation process and greatly improving the efficiency of cargo handling and personnel access. The system can also set the door opening time, delay closing time and operation speed, and adjust the parameters according to the flow of people and logistics frequency of the cold storage to balance operation efficiency and cold energy preservation.
Energy-Saving and Environmentally Friendly Application Advantages
In the operation of cold storage, the loss of cold energy is mostly caused by the long opening time of the door or the poor sealing after closing. The electric control system effectively reduces the energy consumption of the cold storage through precise control. The system can accurately control the opening and closing stroke and speed of the sliding door, minimize the air circulation time between the inside and outside of the cold storage, reduce the loss of cold air and the entry of external hot and humid air, and thus reduce the operating load of the cold storage refrigeration unit. The intelligent delay closing function can avoid the problem of cold energy waste caused by the door being open for a long time due to human negligence.
· PrFood processing workshops
· Cold stores and freezer rooms
· Cold chain logistics centres and distribution warehouses
· Pharmaceutical factories and cleanrooms
· Biological laboratories and sample repositories
· Flower preservation chambers
· Low-temperature storage for
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Product Type |
cold storage sliding door electric control system |
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| Power Supply |
AC 220V/50Hz 110V/50Hz(Customizable) |
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| Motor Power |
250W / 400W Brushless DC |
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| Door Weight Capacity |
Up to 800kg |
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| Operating Temp | -25°C to +45°C | ||
| Opening Speed | 25-40 cm/s (Adjustable) | ||
| Protection Class | IP55 (Dust & Water Resistant) | ||
| Control Type |
PLC + Frequency Inverter |
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| Motor Type |
Servo Motor / High-Torque AC |
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| Activation Options |
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| Safety System |
Infrared Photocell + Safety Edge |
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| Heating Element |
Integrated Control Box Heater |
FAQ
1. What is a cold storage sliding door electric control system?
It is an automation kit designed to convert manual cold storage sliding doors into automatic ones. It typically consists of a motor, a control box (PLC/Inverter), a drive track or belt, and various activation sensors.
2. Can your system be retrofitted onto existing manual doors?
Yes, our systems are designed to be universal. They can be installed on most existing manual sliding doors, provided the door track and wheels are in good condition.
3. What types of cold storage doors is this system compatible with?
It is compatible with light, medium, and heavy-duty horizontal sliding doors used in chillers, freezers, blast freezers, and controlled atmosphere rooms.
4. What is the difference between a standard motor and an inverter (VFD) system?
A standard motor operates at a fixed speed. An inverter (VFD) system allows for variable speeds (soft start and soft stop), which protects the door mechanics and allows for faster opening times to save energy.
5. Do you offer systems for stainless steel or food-grade environments?
Yes, we offer motor kits with IP65-rated stainless steel control boxes and corrosion-resistant components suitable for food processing and pharmaceutical applications.
6. What is the input voltage requirement?
Our standard units are single-phase 220V/50Hz. However, we can customize motors for 110V/60Hz or 3-phase 380V depending on industrial requirements.
7. What is the maximum door weight your motor can handle?
We have different models ranging from light-duty (up to 200kg) to heavy-industrial (up to 800kg or 1000kg).
8. What is the operating temperature range?
Standard models operate between -20°C to +45°C. For blast freezers, we offer a low-temperature series capable of operating down to -45°C with integrated heating elements.
9. What is the opening and closing speed?
Speeds typically range from 20cm/s to 50cm/s. Systems equipped with a frequency inverter can be adjusted to run faster (up to 60cm/s) to minimize air loss.
10. Does the motor use a belt drive or a rack and pinion?
We offer both. Rack and pinion is better for heavy, industrial doors, while synchronous belt drives are quieter and smoother for smaller to medium-sized doors.
11. What is the IP rating of the control box?
Our standard control boxes are rated IP54 or IP65, protecting against dust ingress and low-pressure water jets (wash-down safe).
12. Does the system support "Drop Down" (hermetic) rail systems?
Yes, our motors have a specialized "closing force" setting that pushes the door firmly at the end of the cycle to engage drop-down rails and ensure a hermetic seal.
13. Can I install the motor on either the left or right side?
Yes, the system is reversible. The opening direction (left or right) can be easily set via the DIP switches or the digital controller menu.
14. How much space is required above the door for installation?
Generally, you need at least 150mm to 200mm of clearance above the door track to mount the motor and drive mechanism.
15. Do you provide wiring diagrams?
Yes, every unit comes with a detailed English installation manual and wiring diagram. We also offer video support for technicians.
16. Is the limit switch mechanical or digital?
We use encoder-based digital limit setting for our advanced models (no physical limit switches to adjust). Economy models may use magnetic or mechanical limit switches.
17. What happens if the door hits an obstacle while closing?
The system features an automatic reverse function. If the motor detects resistance (like a forklift or person), it will stop and reverse to the open position immediately.
18. Does the system function during a power outage?
In the event of power failure, the electric clutch disengages (or can be manually disengaged), allowing the door to be opened and closed manually with very little effort.
19. Is there an "emergency stop" feature?
Yes, the control box usually includes a large Red Emergency Stop button. Additionally, safety edges can be installed on the door leaf.
20. Can I set an automatic closing timer?
Yes, you can program the door to automatically close after a set time (e.g., 10 seconds, 30 seconds) to prevent employees from leaving the freezer open accidentally.
21. What is the "Half-Open" or "Pedestrian" mode?
This feature allows the door to open only partially for personnel entry, minimizing cold air loss compared to fully opening for a forklift.
22. What types of switches can trigger the door?
The system supports push buttons, pull cords (ceiling switches), remote controls, radar sensors, magnetic induction loops, and facial recognition terminals.
23. Can I use a remote control?
Yes, most of our controllers have a built-in receiver module that supports wireless remote controls up to a range of 50-100 meters.
24. Can this system interface with an Air Curtain?
Yes, the control box has a relay output specifically for air curtains. It turns the air curtain on when the door opens and off when it closes.
25. Does it support Interlocking (Airlock) function?
Yes, for facilities with anterooms, two doors can be interlocked so that Door B cannot open until Door A is fully closed.
26. Do I need a safety edge sensor?
While the motor has built-in resistance detection, we highly recommend installing a rubber safety edge (air wave or electric) for maximum safety compliance.
27. How do I troubleshoot errors?
The advanced control box features an LED display that shows error codes (e.g., E1 for motor error, E2 for sensor blockage), making troubleshooting easy.
28. Does the motor require lubrication?
Most of our motors use sealed bearings and are maintenance-free. However, the drive chain or rack should be greased periodically, especially in humid environments.
29. Why is my door moving slowly?
This could be due to ice build-up on the track, worn-out roller wheels, or the speed setting on the inverter needs adjustment.
30. What happens if the door freezes shut?
Our motors have a high starting torque to break minor frost seals. For severe icing, we recommend installing frame heating cables to prevent the door from sticking.
31. What is the warranty period?
We typically offer a 12-month to 24-month warranty on the motor and control board, depending on the model purchased.
32. Do you sell spare parts separately?
Yes, we stock replacement control boards, remotes, belts, and motors for quick shipment.
33. Can you customize the logo on the control box?
Yes, we offer OEM services and can print your company logo on the control panel for bulk orders.
34. What is the lead time for 50 sets?
Standard production time is usually 10-15 days for orders under 100 sets.
35. How is the product packaged for export?
The kits are packed in reinforced carton boxes with foam padding. For larger shipments, we use wooden pallets to prevent damage during sea freight.
