Elevator Glass

Elevator glass can be divided into several types based on material, structure, and function. The following are the main categories and characteristics:

I. Classification by Material and Process

***‌Tempered Glass‌

Through high-temperature quenching, it is 3-5 times stronger than ordinary glass. It shatters into granular pieces, reducing the risk of cuts. However, it has a spontaneous explosion rate of approximately 3‰, requiring lamination to improve safety.

***‌Laminated Glass‌

Constructed of two pieces of tempered glass sandwiched between a PVB film, it offers strong impact resistance. Shattered fragments adhere to the film. Common specifications include 5+5 or 6+6 laminated glass, suitable for observation elevators and high-rise buildings.

***Heat Soak Tempered Glass‌

Through secondary heat treatment to eliminate internal stress, it has a lower spontaneous explosion rate than ordinary tempered glass.

II. Classification by Functional Characteristics

***‌Fire-Resistant Glass‌

Meets building design fire protection regulations and meets fire resistance standards. It is commonly used in elevator shafts.

***Ultra clear glass

With a light transmittance exceeding 90%, low impurities, and a self-explosion rate of only 0.1% to 0.3% (0.1% to 0.3%), it is suitable for high-end villa elevators.

***Low-reflective glass

Reduces light pollution and is commonly found on commercial building exterior elevators.

III. Special Design Types

***All-glass Cabin

Adopts a laminated and tempered glass design for both aesthetics and safety, can be flat or curve glass elevators lifts.

***Metal-glass Composite Door

Combining a metal frame and glass, it offers high strength and decorative appeal, making it suitable for commercial elevators.

IV. Advantages

***High Safety

Using multiple layers of laminated tempered glass, it is 5-10 times stronger than ordinary glass. Shattered fragments adhere to the laminated layer, preventing flying injuries. Tempered glass also offers excellent thermal stability, withstanding temperatures ranging from 200°C to 300°C.

***Aesthetics and Transparency

High transparency creates a sense of openness and brightness, enhancing the overall quality and modern feel. It is particularly suitable for high-end residential and commercial spaces. Glass is a simple and stylish material that meets modern aesthetic needs.

***‌Functionality Extension‌

Laminated glass offers sound insulation and UV protection, enhancing passenger comfort and protecting interior items. Some glass types, such as insulating glass, also offer enhanced thermal insulation.

V. Disadvantages

***‌Environmental Impact and Cost‌

Tempered glass is complex to recycle and is less environmentally friendly than recyclable materials like aluminum-plastic panels. Manufacturing and installation costs are high, especially since all-glass elevator designs require sophisticated craftsmanship.

***‌Light Pollution and Privacy Issues‌

Glass curtain walls can cause light pollution due to sunlight refraction, and elevator operation can affect the lighting and privacy of surrounding residents. This can be mitigated through coating or frosting.

***‌Maintenance Limitations‌

Microscopic stress cracks may develop after long-term use, requiring regular inspection and maintenance in extreme temperature fluctuations. Frequent cleaning is required, and the surface is susceptible to fingerprints and water stains.

VI. Applicable Applications

***Preferred in high-end residential buildings, commercial sightseeing elevators, villa elevators, and other locations where aesthetics and safety are paramount.