The five core features of system doors and windows are: systematic design, high thermal insulation profiles, standard material formula, high-quality hardware system, and strict production technology

Europe is the birthplace of system doors and windows, and it has been nearly 20 years since it entered the Chinese market. Domestic door and window companies have gradually mastered the technology and principles of system doors and windows through research and study. The performance and quality of ordinary doors and windows have been improved to a certain extent, but due to market distribution and price restrictions, ordinary doors and windows have not reached the configuration and performance of European system doors and windows. Compared with glass curtain walls, there are many types of main materials, hardware, accessories, rubber strips, components, etc. There are dozens of types of materials for a complete door and window, and there is a lot of room for optional and reduction. This is also the reason why the price of the same type of window varies greatly. The following structural details are given as an example.

Through the study of European systems, it was found that the corner connection of system doors and windows uses a special cast aluminum corner with a hollow stainless steel pin + glue injection. This corner connection process includes two special technologies: one is the expansion tension fixing technology, and the other is the glue injection sealing technology. Each cast aluminum corner is composed of two halves of cast aluminum parts. When the stainless steel hollow pin is driven in, the two halves of the cast aluminum parts will automatically expand. In addition, the matching tolerance of the corner pin hole and the profile pin hole will tighten and fix the two 45-degree spliced profiles firmly. After the fixation is completed, the next step is to inject glue into the corner through the glue injection hole of the pin. After the glue injection is completed, the 45-degree splicing of the profile is completely sealed with glue from the inside of the cavity. The gap between the corner and the profile cavity is also completely sealed.

Ordinary aluminum alloy doors and windows generally do not treat this part, or only symbolically apply some glass sealant at the joint, which can be said to have basically no sealing effect. System doors and windows take special measures at this part, installing a stainless steel or aluminum alloy clip with a groove, which on the one hand strengthens the connection at the thin wall and avoids the seam at the joint; on the other hand, by injecting glue between the stainless steel clip and the profile, the sealing of the joint is completely guaranteed.

There are many differences like this, from which we can see the difference between system doors and windows and ordinary doors and windows in materials, processes, performance and price.

So what is the difference between system doors and windows and ordinary doors and windows?

System doors and windows have their own independent technical department, which will conduct strict tests and inspections on the various components of system doors and windows, so the various components are well matched and not prone to failure, which is what we often call good stability. Ordinary doors and windows are assembled by ordering different components according to their own needs, but there will be some problems during use, and the stability is relatively poor. After 2 to 3 years of research and development of system doors and windows, the materials, performance and quality of the entire doors and windows are fully tested, and mature products are launched after the expected goals are achieved. Ordinary doors and windows are door and window products temporarily integrated for a single project, and they are often not fully tested.

The components of system doors and windows are fixed according to different performances, and the room for selection is relatively small compared to ordinary doors and windows, so the flexibility is small. Ordinary doors and windows can flexibly configure their own components according to their own needs. System doors and windows are serialized and standardized products. The notch structure and material supply are highly exclusive and incompatible. The series can only be selected according to the needs of the project, and generally no research and development will be carried out on individual projects. Ordinary door and window materials can be selected from domestic and foreign manufacturers, and temporary molds can also be opened, which is highly flexible.

While providing products, system doors and windows also provide design software, design manuals, procurement manuals, processing manuals, professional special equipment and technical service support, which is a complete industrial chain. The quality of ordinary doors and windows depends on the level of designers and the processing and installation capabilities of door and window companies.