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Quick opening and closing

Running speed comparation:

Sectional door: 0.3m/s; 

Traditonal roller shutter door: 0.06-0.08m/s;

So, sectional doors are four times the speed of a traditional roller shutter door.  It opens and closed much faster. This bring several big benefits for warehouse with loading docks or bays:

• Improve work efficiency:  Workers or forklifts will no need wait long time in front of the door. The material handling speed is higher by at least 3 times than traditional roll up doors; 

• Keep clean and hygiene: The fast running reduces the open time to only seconds in a cycle of passing the door. Thus much less outside air and dust will enter the warehouse; 

• Keep temperature inside warehouse: Heat loss is reduced obviously by reducing open and closing time.

High frequency working

In many warehouses, it is quite busy for loading and unloading in 24 hours. Lorries come and leave many time is one hour. In such heavy traffic warehouse, overhead sectional doors in the loading docks can meet the requirement of high frequency opening and closing. 

There is torsion spring balance system around top drive rod. After spring tightened, it can balance the weight of the door and reduce the load weight of motor. So its drive motor is always in a light-load working state. This is the reason why such overhead sectional doors can work continually in high frequency. No need worry its motor will overload and get burnt.  

Max work frequency: 800 open-close cycles per day. 

 Flexible design to fit all project sites

The loading bay overhead sectional door can climb up in different ways to fit specific site situation of warehouse loading dock.   

Standard lift: For limited top space, the door will turn to the ceiling directly;

High lift:  The door can climb up the wall for some distance and then turn to the ceiling; 

Vertical lift: If the ceiling is high enough, the best way is to climb up complete to the top.