304 Stainless Steel Warm Edge Spacer for Insulated Glass Window

Product Description

100% Stainless Steel Spacer Bars for Insulating Glass
1. Definition
100% stainless steel spacer bars are integral components specifically designed for use in insulating glass units (IGUs). They are slender, rigid structures made entirely from stainless steel, without any other metal alloys or non-metallic materials mixed in. These bars are placed between the two or more panes of glass that form the insulating glass, creating a precise and uniform gap between them. Their primary role is to maintain the structural integrity of the insulating glass while contributing to its thermal and acoustic insulation performance.
2. Material Characteristics
Being 100% stainless steel, these spacer bars boast exceptional material properties. Stainless steel is renowned for its high corrosion resistance, which is crucial as the spacer bars are exposed to varying environmental conditions, including moisture and humidity, within the insulating glass unit. This resistance prevents rusting and degradation over time, ensuring the long-term stability of the IGUs. Additionally, stainless steel offers excellent mechanical strength and rigidity. It can withstand the pressure exerted by the glass panes and external forces, maintaining the consistent gap between the panes even under changing temperatures and structural stresses. The material also has good temperature resistance, not easily deforming when exposed to extreme hot or cold conditions, which is vital for the performance of insulating glass used in different climates.
3. Structural Design
The structural design of 100% stainless steel spacer bars is tailored to the requirements of insulating glass. They are typically thin and long, with a uniform cross-sectional shape, such as rectangular or U-shaped. The U-shaped design is common as it allows for the placement of desiccants, which absorb any moisture that may enter the gap between the glass panes, preventing fogging and ensuring clear visibility. The bars are manufactured with precise dimensions to ensure a perfect fit between the glass panes, promoting even distribution of stress and maintaining the integrity of the seal around the edges of the insulating glass unit.
4. Available Models: 6-24A
The 6-24A is a key model in our range of 100% stainless steel spacer bars for insulating glass. Here, "6-24" refers to the range of the width of the spacer bar, which is from 6mm to 24mm. This width determines the size of the gap between the glass panes in the insulating glass unit. The "A" in the model designation typically indicates a standard type that is widely applicable to common insulating glass configurations.
This model range is designed to meet the diverse needs of different insulating glass applications. For example, a 6mm width spacer bar is suitable for smaller gap requirements, often used in scenarios where space is limited or where a more compact insulating glass unit is needed, such as in some small windows or display cases. On the other hand, a 24mm width spacer bar is ideal for creating a larger gap, which can enhance thermal insulation performance, making it suitable for areas with extreme temperature differences, like cold regions or buildings with high energy efficiency requirements.
5. Function in Insulating Glass
5.1 Maintaining Glass Spacing
The key function of these spacer bars is to keep the two or more glass panes in insulating glass at a fixed and uniform distance. This consistent gap is essential for the proper functioning of the insulating glass, as it allows for the creation of an air or gas-filled cavity that provides thermal insulation. Without the spacer bars, the glass panes would tend to move towards each other, reducing the effectiveness of the insulation.
5.2 Enhancing Structural Stability
By connecting and separating the glass panes, 100% stainless steel spacer bars enhance the overall structural stability of the insulating glass unit. They help to distribute the forces acting on the glass, such as wind loads and thermal expansion/contraction, evenly across the entire unit, reducing the risk of glass breakage or seal failure.
5.3 Supporting Desiccant Placement
As mentioned earlier, the U-shaped design of many stainless steel spacer bars provides a space for desiccants. These desiccants play a crucial role in absorbing moisture within the cavity, preventing condensation from forming on the inner surfaces of the glass panes, which would otherwise impair visibility and reduce the insulating properties of the glass.
5.4 Contributing to Thermal Insulation
While the primary thermal insulation comes from the air or gas in the cavity, the 100% stainless steel spacer bars also contribute to this aspect. Compared to some other spacer materials, stainless steel has a lower thermal conductivity than materials like aluminum. This means it reduces heat transfer through the edges of the insulating glass unit, minimizing thermal bridging and improving the overall energy efficiency of the IGUs.
6. Advantages in Insulating Glass Applications
6.1 Longevity and Durability
Thanks to the 100% stainless steel composition, these spacer bars have an exceptionally long service life. Their resistance to corrosion ensures that they do not deteriorate over time, even in humid or harsh environments. This durability helps to extend the lifespan of the entire insulating glass unit, reducing the need for replacement and maintenance.
6.2 Thermal Performance
As stainless steel has lower thermal conductivity compared to traditional aluminum spacers, 100% stainless steel spacer bars help to reduce heat loss through the edges of the insulating glass. This improves the overall thermal insulation of the window or door, leading to energy savings in heating and cooling systems. It also helps to prevent condensation on the inner glass surface near the edges, enhancing comfort and visibility.
6.3 Compatibility with Sealants
100% stainless steel spacer bars have good compatibility with various types of sealants used in insulating glass manufacturing. This ensures a strong and reliable bond between the spacer bar, the glass panes, and the sealant, creating an airtight and watertight seal. A proper seal is essential for preventing the ingress of moisture and air into the cavity, maintaining the insulating properties of the glass unit.
6.4 Environmental Friendliness
Stainless steel is a fully recyclable material, making 100% stainless steel spacer bars an environmentally friendly choice. At the end of their service life, they can be recycled and reused, reducing waste and the consumption of raw materials. This aligns with the growing trend towards sustainable construction and green building practices.
7. Installation Considerations
During the manufacturing of insulating glass units, the installation of 100% stainless steel spacer bars requires precision. The bars are cut to the required length and joined at the corners to form a frame that matches the size of the glass panes. The desiccant is placed inside the U-shaped channel of the spacer bars before assembly. The spacer frame is then bonded to the first glass pane using a primary sealant, and the second glass pane is attached with a secondary sealant, ensuring a secure and airtight connection. Care must be taken to ensure that the spacer bars are properly aligned and that the sealants are applied evenly to avoid any gaps or leaks. For the 6-24A model range, it's important to select the appropriate width based on the design requirements of the insulating glass unit to ensure optimal performance.
8. Applications
100% stainless steel spacer bars, including the 6-24A model range, are widely used in various types of insulating glass units, including those used in residential windows, commercial buildings, and automotive glass. They are particularly suitable for applications where high durability, excellent thermal performance, and resistance to corrosion are required, such as in coastal areas with high humidity, buildings in harsh climates, or structures where long-term performance is a priority. The 6-24A models, with their varying widths, can be applied in different scenarios from small, compact glass units to larger ones with higher insulation needs.

 The stainless steel warm edge spacer is made of a unique metal material, which is a high-performance glass spacer product, aiming at improving the glass edge and overall performance. The company adopts mori (Japan Mori Seiji) equipment, the wall thickness of the raw stainless steel material is 0.15mm, the thermal conductivity is about 0.4-0.5w/mk, and the thermal insulation performance is closer to the composite warm edge spacer strip, which can effectively reduce the equivalent thermal conductivity of the glass; the laser spot welding technology is adopted, the stress is relatively small, the friction of sharp objects on the molecular sieve is reduced, the permeability is high, and molecular sieve will not be caused Leakage of screen powder.
 
Performance advantages:
1. Excellent fire resistance, melting point of stainless steel at 1500 ° C
2. Flexible and easy to bend, can make any shape
3. Good adhesive compatibility does not react with glass coating
4. High retention rate of argon gas can effectively improve the performance of insulating glass and prolong its service life
 





It can be satisfied with any bending angle required during the processing,such as: rectangle, arc etc.
 
The advantage of edge of the warm edge of the bar Warm edge spacer fiberglass composite 16A :
fire retardant, anti-condensation, anti-ultraviolet performance
 
low thermal conductivity achievements of excellent insulation performance
 
efficient noise and noise reduction performance
 
beautiful visual effects
 
green energy saving




 
Feature of warm edge spacer  Warm edge spacer  :
 
Hot cold extrusion   
Energy saving and environmental
Strong sealing property    
Comfortable and beautiful
 
The specification of warm edge spacer bar:
 

Model	width/mm	height/mm	length /m	packing
6A	5.5	6.8	5	CTN
9A	8.5	6.8	5	CTN
12A	11.5	6.8	5	CTN
14A	13.5	6.8	5	CTN
15A	14.5	6.8	5	CTN
16A	15.5	6.8	5	CTN
18A	17.5	6.8	5	CTN
19A	18.5	6.8	5	CTN
20A	19.5	6.8	5	CTN
24A	23.5	6.8	5	CTN
27A	16.5	6.8	5	CTN

 

 
Through the advanced constant temperature heating process, the high-end composite material and stainless steel are processed at the same time, and then cooling the condensation to make the two materials seamless butt, finally in order to form a tight sealing structure of the integral section.
 
Why choose akefa warm edge spacer? 
We guarantee partners approach, when it comes to co-operation. We stick to the rule that both sides should mutually benefit from such co-operation. We are an independent manufacturer and never compete with our customers. We are for You.
We offer top quality products and we are open to creation of new products in order to successfully meet the market demand.
We are open to various forms of co-operation. You may aspire to become our technical and commercial advisor or business partner. You are most welcome to co-operate with us.