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On June 27, LandVac Titanium Vacuum Insulated Glass Co., Ltd. held the “One-Step Composite Metal Sealing Vacuum Insulated Glass Technology Release Conference” in Luoyang. During the event, it was officially announced that the technical achievement evaluation organized by the China Building Materials Federation concluded: LandVac’s composite metal sealing vacuum insulated glass new product has reached an internationally advanced level, and the development and application of the manufacturing technology for one-step composite metal sealing vacuum insulated glass have reached an internationally advanced level, with the preparation process technology for one-step composite metal sealing vacuum insulated glass being recognized as reaching an internationally leading level. This is the first technical achievement in the domestic vacuum glass field to be evaluated in all dimensions by a national-level authoritative industry organisation, with its core technology recognised as internationally leading. Comprehensive media outlets including People’s Daily, China Industrial News, Consumer Daily, and Luoyang Daily, as well as professional industry media such as China Building Materials News, Glass Industry Network, Chinaglass.com, and Xingglass.com, attended to witness this event.
As the most credible national industry organisation in the building materials sector, the China Building Materials Federation holds core functions such as industry scientific and technological achievement evaluation, standard system construction, industrial strategic planning, and recommendation for national-level scientific and technological awards. It is also the official representative organisation for China's participation in the formulation of international building materials standards. This evaluation was led by its expert committee, with industry authoritative experts from organisations including the Chinese Ceramic Society, Zhejiang University, China Building Materials Academy of Glass & New Materials, China Building Glass & Industrial Glass Association, CTC (China Building Materials Test & Certification Group), and China CSG Holding Co., Ltd. participating. The evaluation conclusion serves as a core benchmark for measuring technological innovation in the building materials field and as a critical basis for the adoption of technical qualifications in major engineering projects and the declaration of national-level scientific and technological awards.
As a leading enterprise in the vacuum glass field, LandVac has been deeply engaged in the industry for twenty years. By achieving independent innovation in multiple “bottleneck” technologies, it has solved long-standing technical difficulties in traditional vacuum glass products regarding edge-sealing reliability, wind load resistance, and production inspection efficiency, pushing China’s vacuum glass industry into a new stage of independent control and high-quality development.
Flexible Metal Sealing Technology: Targets and solves the pain points where vacuum glass is easily damaged by wind pressure and temperature differences, significantly improving the product’s deformation resistance and long-term safety.
Online U-Value Inspection Technology: Abandons the traditional sampling inspection mode to achieve 100% online full inspection of product U-values, strictly controlling quality and ensuring performance consistency across batches.
Pumpless Technology: Eliminates the traditional pre-reserved vacuum hole design, removing aesthetic defects, insufficient gas extraction, performance fluctuations, and leakage risks, comprehensively upgrading overall product quality and reliability.
Vacuum Glass Composite Technology: Innovatively developed the PVB/SGP interlayer metal sealing composite process, overcoming technical difficulties in structure and strength, and clearing the barriers for engineering application with standardized solutions.
Large-Format Vacuum Glass Preparation Technology: Breaks through the production difficulties of ultra-large boards of 4200mm × 2400mm and thick boards of 10mm + 10mm, solving industry problems such as low extraction efficiency, thermal expansion and contraction damage during edge sealing, uneven performance, and insufficient durability in large-sized products.
The value of process innovation must ultimately be realized through production lines. LandVac has not stopped at technical breakthroughs in the laboratory but has focused on intelligent manufacturing—autonomously building the world’s first intelligent vacuum glass production line. As a landmark achievement of LandVac’s decades of deep cultivation in energy-saving glass technology and overcoming multiple “bottleneck” processes, this production line deeply integrates IoT, digital twins, and other digital technologies. It has opened up an unmanned production chain covering the entire process from glass cutting, precision grinding, and intelligent tempering, overcoming the global core technical difficulty of industrializing tempered vacuum glass, and transforming laboratory-level innovation into stable and reliable large-scale manufacturing capacity.
Compared with traditional production lines, this intelligent production line can significantly compress production cycles and reduce costs. Relying on the supporting MES digital management system, every piece of glass that rolls off the line generates an exclusive “digital ID” through laser marking, achieving full-lifecycle traceable management from raw material warehousing, production and processing, quality inspection, to outbound delivery and after-sales tracing. It is worth mentioning that this production line possesses high-adaptability flexible production capabilities and can mass-produce high-end categories such as 2.4×4.2-meter ultra-large specifications of LandVac Titanium Vacuum Insulated Glass and vacuum composite special glass, filling the industry's gap in large-format high-end vacuum glass mass production and allowing “Intelligent Manufacturing in China” to truly stand at the forefront of the world in the vacuum glass field.
As a new generation of super vacuum glass with higher strength, lower heat transfer, longer service life, and excellent appearance and performance, LandVac Titanium Vacuum Insulated Glass has successively passed rigorous domestic and international testing systems, including China’s CTC (CCC) certification, China Green Building Material Product Certification, US SGCC certification, US ATI wind load testing, Australia’s CSI safety glass certification, Germany’s IFT testing, and France’s CSTB testing. Meanwhile, the advancement of CE and EPD certifications for the European market has also made significant stage progress, with the global compliance certification network becoming increasingly perfect, laying a solid foundation for the product’s global voyage. Field data shows that its limit U-value is as low as $0.3W/(m^2·K)$, with heat insulation capacity reaching 2 to 4 times that of conventional hollow glass. The weighted sound insulation reaches as high as 39dB, providing a significant suppression effect on low-to-medium frequency noises with strong penetrating power such as traffic noise and construction noise, allowing for both tranquility and energy saving. From thermal transmittance to acoustic performance, LandVac Titanium Vacuum Insulated Glass, with its comprehensively leading indicators, firmly occupies a place of international top-tier quality, providing reliable and efficient solutions for building curtain walls and special scenarios.
The German Centre for Applied Energy Research (CAE), in conjunction with the Technical University of Darmstadt and other top international institutions, conducted a comprehensive and systematic evaluation of LandVac Titanium Vacuum Insulated Glass. In the thermal-mechanical load resistance capacity test, simulating extreme sunshine conditions in Southern Europe in summer (approx. 960W/m² constant radiation), LandVac Titanium Vacuum Insulated Glass endured 178 temperature cycles over a 20-day measurement period. Each cycle was under extreme working conditions significantly higher than 80℃, and its thermal insulation performance remained stable throughout, verifying its excellent thermal durability with reliable performance in extreme environments. At the same time, the research team also conducted a comprehensive calculation of vacuum composite hollow glass versus commercially available triple-pane double-chamber hollow glass. The results show that compared to triple-pane double-chamber argon-filled glass, the project’s use of LandVac Titanium Vacuum Insulated Glass reduced fossil fuel (natural gas) consumption for building heating by up to 16%, with an annual comprehensive energy-saving rate of 15.2%. It can significantly reduce building heating energy consumption and carbon emissions under European climate conditions.
Meanwhile, in a 12-month field measurement and verification project carried out at the headquarters of the Electrical and Mechanical Services Department (EMSD) in Hong Kong, LandVac Titanium Vacuum Insulated Glass was comprehensively compared with traditional glass windows. During the hottest time of the day, the inner surface temperature of the system installed with LandVac Titanium Vacuum Insulated Glass was on average 7.74℃ lower than that of traditional glass, effectively reducing heat transfer to the interior; the indoor air temperature behind the glass was 1.7℃ lower than that of existing glass, directly improving indoor thermal comfort. Building energy consumption prototype simulations based on the test specifications show that under Hong Kong's climate conditions, adopting LandVac Titanium Vacuum Insulated Glass can reduce building cooling load by 24% and total building energy consumption by 11%.
Whether in the bitter winters of Germany or the humid, scorching summers of Hong Kong, LandVac Titanium Vacuum Insulated Glass has proven with its real-world performance across different latitudes and climate zones that its energy-saving benefits are not “one policy for one location,” but a universal solution with broad applicability.
From high-end home appliances to zero-carbon buildings, from building-integrated photovoltaics to art decoration, LandVac Titanium Vacuum Insulated Glass uses a diversified product matrix to fully meet the rigorous requirements for insulation, heat shielding, and noise reduction in different scenarios. With strong technical strength and stable product quality, it has won the North American BD+C Top Product Award for two consecutive years and the 2025 R&D 100 Award, writing the world's “Made in China” with hard-core technology.
To date, LandVac Titanium Vacuum Insulated Glass has been applied in over 1,200 ultra-low energy consumption buildings, high-end villas, and high-end home appliance projects, covering more than 120 countries and regions worldwide, including the UK, the US, the Netherlands, and Hong Kong, China. From the academic halls of Harvard University and Cambridge University to the luxury landmarks of the Hilton Hotel in Switzerland; from the industrial benchmarks of the JAC A5 factory to the authoritative choices of the Beijing Institute of Architectural Design and the National Energy Administration; from the cultural guardianship of the Erlitou Xia Capital Ruins Museum to the classic renewal of century-old castles in Paris—every coordinate is LandVac’s firm commitment to quality and a sustainable future.
“Breaking Through · The Fifth Generation” is not the end, but a new starting point. The successful holding of this new technology and new product evaluation meeting marks that LandVac’s one-step composite metal sealing vacuum insulated glass has reached an internationally advanced level in all aspects, including technical maturity, product performance, production capacity, and market application. Taking this certification as an opportunity, LandVac will continue to delve into the core technologies of vacuum glass and work with global partners to jointly promote the transformation and upgrading of the building industry towards a green, low-carbon, and high-quality direction, allowing Chinese wisdom to empower a sustainable future.
