A doorway is six meters wide. What is the cheapest way to make a pair of doors and how to do it?

I have been working in production and maintenance in this industry for nearly five years, and I have indeed seen a lot of scam products. Common causes of electric leakage:

First: The quality of the wires is not good, and they are exposed to wind and sun for a long time. Some colloids with low flexibility are easy to age, and they will be recycled with the extension of the door body for a long time, cracking and leaking. . There is also not good pure copper wire inside.

Second: Configuration of the drive head system. There are many manufacturers of motors, controllers, displays, etc., and purchasing good products from them is relatively expensive. I have seen motor leakage during maintenance before.

Third: The master works. Anyone who has bought a telescopic door knows a little bit about it, so I won’t go into details. Take a look at the picture below:

Picture 1, this door is relatively long and has anti-climbing and anti-collision functions.

Picture 2, when the wires enter the inside of the machine head, there is a piece of anti-wear black glue to protect the wires, which is much safer than just drilling a hole and leading the wires in.

Picture 3: No matter how many wires there are inside the machine head, we still need to arrange them neatly using wire troughs. After putting so much thought into these details, the ultimate beneficiary is the customers who use our products.

Taking into account all costs (labor, materials, configuration, promotion, etc.), good things will never be cheap. If they are ridiculously cheap, there must be something fishy about them. I hope that my long-term practical work experience can help everyone buy a good telescopic door.