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This metal sheet rolling shutter door (Metal Sheet) belongs to the category of Australian Style rolling shutter doors, also known as Aluzinc rolling shutter doors. Its material is steel plate, and the surface is coated with aluminum and zinc, which is the same as ordinary metal plate. The metal plate material is a flat plate, which can be bent according to the installation needs. Compared with the ordinary Standard Type rolling shutter door, the Australian style rolling shutter door has a more beautiful and unique appearance.
We can see that its column is larger than the ordinary column (the ordinary column size is about 55 cm, while the column size of the Australian style rolling shutter door is 105.5 cm). The fittings of each component, starting from the column, we use 6063T5 grade aluminum alloy material, the width is 10 cm, the protruding part is 5.5 cm, the surface is treated with powder coating, and there are white and black options.
Metal plate
In fact, the metal plate or aluminum-zinc alloy plate is steel that has been treated by the factory production process. It needs to go through the process of aluminum coating and zinc coating (ie galvanizing). The thickness is carried out according to the factory specified standard. After the coating is completed, it is then colored. The strength grade of the steel is G300, not G550 for making roofs.
If the G550 is used to make the rolling shutter door (it may be difficult to curl or it is not easy to return to its original state after curling, and the use effect is not good), the splicing method of DSC company only uses 8 peaks for splicing, and will not choose too many peaks for splicing. In this way, the color alternation effect of splicing is beautiful, because we always give priority to intensity (the more splicing, the lower the intensity), and every 70 cm (8 peaks) can be changed once.
Comparison of ordinary columns with aluminum alloy columns
You can also choose colors (green, white, cream, brown, orange, blue, etc.) and regular vertical vents. The vents are located in the four rows of the keyhole and the mailbox position, which can be selected according to your needs. Due to the angular shape of the crests, the handle accessory is not necessary, unlike the Standard Type.
Aluminum-Zinc Alloy Sheet
Next, let's take a look at the door panel of the rolling shutter door. The crest shape of the Australian-style rolling shutter door is rectangular, and it is spliced by the Seaming Machine. The splicing is tight and seamless, and the surface is smooth. The thickness of the door panel is 0.47 - 0.5mm. The Australian style also has a feature in terms of material, that is, it is made of pure aluminum alloy, while the Standard Type usually uses only steel or stainless steel (the standard type has only one aluminum alloy material with a size of 1.8mm).
Blue aluminum-zinc alloy plate rolling shutter door
Let's take a look at the next observation point, that is, the bottom base is made of aluminum alloy, and is equipped with dustproof and waterproof rubber strips to prevent dust and water from entering the interior of the building. These two parts will be exposed to rain, so they may rust in the first year. DSC's Australian-style rolling shutter doors invest more in quality and are better than other manufacturers. Most other manufacturers use steel columns, and some manufacturers even use steel bottom bases to reduce costs (in places, it is often seen that unauthentic Australian-style materials are used).
We can go to shops or commercial buildings to check on the spot, and we will find that where the columns and bottom bases are made of steel, rust will inevitably occur.
Plate metal rolling shutter door bottom base
Dusitshutter company's Australian style rolling shutter door has adopted new design and innovation to make its quality better than ordinary standards. A shaft with a diameter of 1.5 inches and a thickness of 2 mm is used, and a high-quality steel bearing wheel is used instead of the plastic wheel used before.
The plastic wheel has problems in bearing force and needs to be replaced later because the service life of plastic is shorter than that of steel (experience in replacing plastic wheels for customers, because high temperature can make plastic brittle and crack). The spring of the Australian style rolling shutter door has been carefully designed and calculated, and there is a foam or rubber liner under the spring to prevent the spring from colliding with the shaft tube to produce noise, because the collision of hard objects can produce noise.
