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Aluminium Spacer Bar for Double Glass
When installing double-glazed windows, aluminum spacer bars are an absolutely crucial and indispensable component. They are not merely a simple material separating two panes of glass; they are key to maintaining the structural stability, long-term sealing, and thermal and sound insulation of the entire window/door.
Features
Renqiu City Xinjian Metal Products Co., Ltd. is one of the most reliable manufacturers and suppliers of aluminium spacer bar for double glass in China. With a professional production team, we are able to meet the needs of the majority of our customers. Welcome to wholesale customized aluminium spacer bar for double glass from our factory. Also, free sample is available.
Many overseas window and door factories and project purchasers frequently encounter problems such as fogging, air leaks, and shortened lifespans in double-glazed windows, largely due to the use of inferior spacer bars, rather than a quality issue with the glass itself. Because of their stability, durability, and wide adaptability, aluminum spacer bars have always been the most common and widely accepted standard material in double-glazed window projects worldwide.
Simply put, it's the "skeleton" of the double-glazed window. The two panes of glass cannot be directly glued together; it's the spacer that holds them apart, creating an air layer in between. At the same time, it's filled with desiccant to absorb moisture from the glass cavity. If this skeleton breaks or the seal is compromised, your window will become "frosted glass," impossible to clean properly.
To meet the diverse procurement needs of overseas clients at different levels, aluminum alloy spacers have been developed into several commonly used categories, covering orders across all scenarios. The original color aluminum alloy spacers offer the best value for money and are suitable for large-volume, routine engineering orders; the matte roller-coated version has a non-reflective, high-end look, matching the minimalist architectural style of Europe and America, and is suitable for high-end home decoration and premium curtain wall projects; the embossed version has higher structural strength, higher processing tolerance, and is wear-resistant and not easily deformed; the pre-applied butyl tape version eliminates the need for manual gluing, significantly improving production efficiency and perfectly suited for overseas processing plants with high labor costs.
Aluminium Spacer Bar for Double Glass - Complete Specifications (Common for Export, International Standards)
1. Standard Insulating Glass Sizes (Mainstream for Market/Export)
Standard sizes fully covered: 6A, 9A, 12A, 15A, 18A, 20A, 24A, adaptable to the universal cavity thickness of double-glazed windows worldwide. 6A/9A are mostly used for ordinary residential doors and windows, while 12A/15A are the most commonly used sizes for engineering and export orders. Larger sizes 20A/24A are suitable for high-end curtain walls and projects with high sound and heat insulation requirements. Custom sizes are also supported to meet the needs of irregularly shaped glass and special projects.
2. Standard Wall Thickness
Industry-standard compliant wall thickness: 0.22mm–0.30mm. Regular mass-production models consistently use 0.22–0.25mm, offering high cost-effectiveness and suitability for bulk exports. High-end, bendable, and high-frequency weldable models preferentially use 0.30mm wall thickness for greater rigidity, preventing cracking and deformation during bending, resulting in lower processing scrap rates and suitability for high-standard overseas projects.
3. Basic Material Specifications
Uniformly uses 3003 high-purity virgin aluminum alloy. Aluminum Spacer Bar For Double Glass differs from recycled aluminum, offering pure material, oxidation resistance, and corrosion resistance, suitable for different climates worldwide, and meeting export standards for weather resistance.
4. General Process Specifications
Divided into corner splicing models (for regular cost-effective orders) and high-frequency seamless bending models (the mainstay for high-end exports, with no splicing gaps at the four corners); the internal vents are uniform, burr-free, and unblocked, suitable for molecular sieve desiccants and standardized double-sealing technology for insulating glass.
5. Finished Product Styles and Specifications Covering four main styles
Original color, frosted roller coating, embossed, and pre-applied butyl tape, all sizes are universal and can be customized to suit different overseas home decoration, commercial projects, and mass production scenarios.
In our definition, the aluminum alloy spacer bar for double-glazed windows is a highly practical and virtually flawless basic necessity. With mature technology, stable quality, and a wide variety of styles, it meets the basic needs of ordinary residential decoration as well as the stringent standards of high-end overseas commercial curtain walls and large-scale building projects. For foreign trade buyers and insulated glass processing plants, the Aluminium Spacer Bar for Double Glass offers stable quality control, low loss, minimal after-sales service, and high cost-effectiveness, making it the most reliable and worthwhile core profile for long-term cooperation in double-glazed glass production.
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