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Product Overview
The sliding window is a classic product in the modern building window system. It is framed with high-strength profiles and achieves lateral sliding opening through a pulley track system, without occupying additional space indoors or outdoors. The product integrates core performance such as lightweight, high strength, sealing, insulation, soundproofing, and dustproofing. It combines practical value with decorative aesthetics and can be customized with single-track, double-track, or triple-track structures to fit various spaces such as homes, businesses, and offices. Its core advantages of "no space occupation when opening and flexible ventilation area" break the spatial limitations of traditional sliding windows. At the same time, through material and structure upgrades, it meets multiple needs for energy saving, safety, and durability, making it an ideal window solution for bedrooms, living rooms, balconies, shops, and other scenarios.
Core Construction and Material Selection
Overall Structure Design
The product adopts an integrated architecture of "frame system - glass combination - track pulley - sealing system - hardware accessories":
1. Frame System: The main frame uses 6063-T5 grade aluminum alloy profiles (or alternative break-resistant aluminum profiles), with a multi-chamber structure design (chamber quantity ≥ 3 chambers), enhancing structural strength and insulation performance; the window sash frame wall thickness is ≥ 1.4mm, the track profile wall thickness is ≥ 2.0mm, ensuring no deformation or loosening during long-term use; the frame joint areas use angle brackets + joint glue reinforcement technology, with verticality and levelness deviation ≤ 2mm/m, improving overall structural stability.
2. Glass System: Standardly equipped with double-layer insulating tempered glass (5 + 12A + 5mm), which breaks into blunt-angle particles, without the risk of splashing and injuring people; optional glass can include laminated tempered glass (PVB film thickness ≥ 0.76mm), Low-E insulating glass, triple-layer insulating glass (5 + 12A + 5 + 12A + 5mm), or frosted glass, respectively enhancing safety protection, energy insulation, sound insulation, or privacy protection functions; the glass and profile are sealed with butyl glue + polysulfide glue in two layers, with inert gas filling rate ≥ 90%, ensuring sealing and moisture-proof effect.
3. Track Pulley System: The core transmission component, determining the smoothness of window sash sliding and service life:
- Track: The upper and lower tracks are made by an aluminum alloy one-piece molding process, with surface treated by anodizing or spraying, wear-resistant and corrosion-resistant; single-track is suitable for single or double-sash sliding, double-track or triple-track supports multi-sash linkage or bidirectional sliding, the track is reserved with drainage channels and anti-backflow filters to avoid water accumulation and rusting;
- Pulley: Select nylon + stainless steel double-wheel structure (or customized copper wheels, titanium alloy wheels), single wheel can bear ≥ 20kg, sliding resistance ≤ 4N, with excellent wear resistance, service life ≥ 50,000 times; some high-end models are equipped with buffer pulleys, ensuring no collision noise when opening and closing, improving usage comfort.
4. Sealing System: Uses EPDM (triple rubber) high elasticity sealing strips, Shore hardness 50-60 degrees, with a wide temperature range of -40℃ to 120℃, excellent anti-aging and anti-tear performance; the window sash and window frame, window sash and track, window sash and window sash form multiple sealing structures to completely block air, moisture, and dust infiltration paths; track ends are equipped with anti-collision rubber blocks to reduce closing impact and enhance sealing effect.
5. Hardware Accessories: Including handles, locks, positioners, and anti-detachment devices:
- Handle: Made of zinc alloy or stainless steel, surface treated by electroplating and spraying, resistant to corrosion, convenient to operate;
- Lock: Equipped with multi-point linkage locks or magnetic locks, locking firmly, excellent anti-theft performance;
- Anti-detachment Device: Installed on the top of the window sash, preventing the window sash from falling off, especially suitable for high-rise residences, enhancing usage safety.
Key Material Standards
Component Material Requirements Execution Standards Aluminum alloy profiles of grade 6063-T5, with oxide film thickness of ≥ 10 μm and coating adhesion of ≥ 2 levels in accordance with GB/T 5237—2017
Glass: Tempered glass has impact resistance meeting GB 15763.2, and the dew point of insulating glass is ≤ -40℃ in accordance with GB/T 11944—2012
Sealing strips: EPDM (triple rubber) type, with tensile strength of ≥ 10 MPa and compression permanent deformation of ≤ 20% in accordance with GB/T 14683—2017
Sprocket/hardware: Made of stainless steel or zinc alloy, with salt spray test of ≥ 48 hours and sliding times of ≥ 50,000 times in accordance with GB/T 24601—2009
Sealing adhesive: Weather-resistant silicone adhesive, with tensile bonding strength of ≥ 1.5 MPa and aging resistance life of ≥ 15 years in accordance with GB/T 14683—2017 III. Core Performance Parameters
Basic performance indicators/Performance category Indicators
Wind pressure resistance Grade ≥ 3 (wind pressure value ≥ 1.0 kPa), customizable up to 5 (≥ 2.0 kPa)
Water tightness Grade ≥ 2 (leakage pressure ≥ 300 Pa), no visible leakage
Air tightness Grade ≥ 5 (air penetration per unit seam length ≤ 1.0 m³/(m·h))
Sound insulation Weighted sound insulation of double-pane insulating glass ≥ 30 dB, triple-pane ≥ 35 dB
Heat insulation Heat transfer coefficient K value of ordinary aluminum alloy frame ≤ 3.2 W/(㎡·K), break-through aluminum alloy frame ≤ 2.0 W/(㎡·K)
Safety performance Impact resistance ≥ 1 grade, anti-theft performance can be selected as A or B (compatible with anti-picking hardware)
Sliding lifespan Number of sliding times of the pulley ≥ 50,000 times, no obvious wear and jamming
Installation and maintenance specifications
Installation requirements
1. Before installation, check the opening size and window form specifications to ensure that the verticality and flatness deviation of the opening is ≤ 5mm, and the reserved installation gap is 15-20mm; the installation surface of the track needs to be flat and firm, with a levelness deviation of ≤ 1mm/m to avoid affecting the sliding of the window sash.
2. Frame fixation uses expansion bolts or chemical anchor bolts, with a spacing of ≤ 600mm, ensuring a firm connection with the wall; the frame and the wall are filled with polyurethane foam, and the outside is applied with weatherproof sealant to ensure waterproof and sealing.
3. The installation position of hardware accessories and pulley track is accurate, and they are firmly fixed; after the window sash is installed, the horizontal and vertical positions need to be adjusted to ensure uniform gaps between the window sashes and smooth sliding, and a tight closure; the anti-detachment device needs to be installed in place to avoid the risk of window sash detachment.
4. Electric sliding windows need to be correctly connected to the power supply, debug the motor operation and remote control function to ensure coordinated movement; after installation, an opening and closing test needs to be conducted to check for no jamming, leakage, or abnormal noise before acceptance.
Daily maintenance
1. Avoid sharp objects hitting or scratching the profiles and glass, and prohibit drilling holes or cutting grooves on the window form (to avoid damaging the structure and sealing performance);
2. Clean the surface of the profiles, glass, and track regularly (every half year), use a damp cloth to wipe, avoid using strong acid and alkali cleaning agents; if there are any debris (such as dust, hair, small stones) inside the track, it needs to be cleaned in time to ensure smooth sliding of the window sash.
3. Hardware accessories and pulleys need to be regularly (every year) lubricated with oil to keep the opening flexible; if there is looseness or jamming, it needs to be tightened or replaced; if the sealing rubber strip shows aging, cracking, or detachment, it needs to be replaced in time.
4. Avoid keeping the window sash in a half-open state for a long time, especially for high-rise residences, to prevent damage to the window sash components caused by strong winds and heavy rain; when not in use for a long time, it is recommended to close the window sash and lock it, and take protective measures.
5. Electric sliding windows need to be regularly checked for the motor, wiring, and remote control device to keep dry and clean, avoiding moisture-induced short circuits; open and close the window several times per month to ensure the motor operates normally.
Specification and size range
- Single pane size: Width 600mm - 1200mm, Height 800mm - 2100mm;
- Total width range: Single rail sliding window total width 1200mm - 3600mm, double rail/triple rail total width up to 6000mm;
- Single pane weight: ≤ 60kg (compatible with conventional pulleys), overweight window panes can be upgraded to heavy-duty pulley systems;
- Track type: Lower track (height ≥ 20mm), Upper track (height ≥ 60mm), Ultra-thin lower track (height ≤ 10mm);
- Surface color: Supports powder coating (conventional colors: white, gray, brown), fluorocarbon coating (custom colors), wood grain transfer (wood imitation texture), etc. surface treatment processes.
Scope of Application
- Civil Buildings: bedrooms, living rooms, study rooms, balconies, kitchens and other areas of villas, garden-style residences, and high-rise apartments;
- Commercial Buildings: office areas, guest rooms, public areas of office buildings, shopping malls, hotels, and restaurants;
- Office Buildings: office buildings, meeting rooms, corridors and other areas with requirements for ventilation and space utilization;
- Special Scenarios: coastal areas (wind pressure resistance, corrosion resistance requirements), noise pollution areas (high sound insulation requirements), energy-saving buildings (low K value requirements), etc.
Product Core Advantages
1. High Space Utilization: The horizontal sliding opening design allows the window sash to open without occupying indoor or outdoor space, especially suitable for small-sized houses, narrow window sills, or locations close to furniture; the dual-track/triple-track structure enables multi-sash linkage, with flexible ventilation area adjustment, and the maximum ventilation width can reach 50% to 75% of the door opening width.
2. Safe and Durable: The aluminum alloy profiles are treated with oxidation and spraying processes, featuring excellent corrosion resistance and UV resistance, and do not rust or fade. The service life is ≥ 20 years; the triple-layer protection of tempered glass + anti-detachment device + anti-collision rubber blocks ensures safe use; the precise cooperation between the pulleys and the tracks ensures smooth sliding, minimal wear, and strong durability.
3. Excellent Sealing and Insulation: The three-component EPDM sealing strip is combined with insulating glass, and multiple sealing structures are used to effectively prevent air infiltration and heat conduction. It provides winter insulation and summer heat insulation, reducing energy consumption for air conditioning and heating; it also has good sound insulation and dust-proof effects, capable of isolating external noise and dust, creating a quiet and tidy indoor environment.
4. Strong Decorative Properties: Supports various colors and surface treatment processes, matching different decoration styles such as Chinese style, European style, and modern style; the profile lines are simple and smooth, with a large glass area, providing sufficient lighting, enhancing the transparency of the space; customizable single-sash, double-sash, or multi-sash structures can be provided to adapt to different space layouts.
5. Convenient Operation: The pulley track system is ingeniously designed, with low resistance for window sash sliding, easy opening and closing, and effortless operation even for the elderly and children; some products can be equipped with an electric transmission system to achieve remote opening and closing, suitable for large-sized, heavy window sashes, or high-altitude installation scenarios.
6. Wide Adaptability: Customizable in size, color, glass type, and opening method to adapt to various scenarios such as residences, commercial spaces, offices, and hotels; it can be used as indoor windows (such as bedrooms, study rooms) or outdoor doors (such as balconies, sunrooms), providing both lighting and ventilation functions as well as decorative features.
FAQ：
1. Which type of window is more suitable for home use, sliding windows or casement windows?
Both have their own applicable scenarios. Sliding windows do not occupy indoor and outdoor space when opened, making them suitable for bedrooms and kitchens with narrow window sills, close to furniture or small-sized apartments; casement windows have better sealing, insulation and soundproofing effects, and have higher ventilation efficiency when opened, making them suitable for living rooms and master bedrooms with high requirements for living comfort.
2. What are the reasons for the sliding window to have stuck movement or be difficult to push and pull? How to solve the problem?
The main reasons include dust or debris blocking the track, worn-out and deformed pulleys, and unlevel installation of the window sash. The solutions are: first, clean the dust, small stones, etc. in the track; if the pulley has cracks or is stuck, replace it with the same model stainless steel nylon pulley; if the window sash is tilted, adjust the height of the upper and lower tracks or the adjusting screws on the side of the window sash to ensure the window sash is level.
3. Will sliding windows leak air or water? How to improve the sealing effect?
Qualified products are equipped with multiple layers of EPDM sealing strips. Under normal use, they are unlikely to leak air or water. Leakage often occurs due to aging and cracking of the sealing strips, uneven gap between the window sash or blockage of the drainage holes in the track. You can replace the aging sealing strips, adjust the window sash to make the gap uniform, and regularly clean the drainage holes in the track; you can also install window seam sealing strips to further improve the sealing performance.
4. How long can the sliding window's pulley last? Is regular maintenance required?
High-quality stainless steel nylon pulleys can withstand up to 50,000 sliding times under normal use and regular maintenance. The service life is approximately 8-12 years. Regular maintenance is required. It is recommended to add lubricating oil to the pulleys and tracks every six months and clean the track debris to avoid excessive wear of the pulleys.
5. Are sliding windows suitable for high-rise residences? What should be noted?
Yes, but choose heavy-duty sliding windows. They should meet the requirements of having a profile wall thickness of ≥1.4mm, using an upper and lower double-track structure, and being equipped with a windproof device; during installation, use expansion bolts to firmly fix the window frame, with a spacing of ≤600mm; in coastal areas with strong winds, it is recommended to choose products with an anti-ventilation pressure grade of ≥5, to avoid window sashes swaying or falling.
6. Can the glass of sliding windows be replaced? Is there any safety hazard if it breaks?
It can be replaced, and it needs to match the size and thickness of the window sash frame. The standard tempered glass breaks into blunt-angle particles, which will not fly and cause injury; if you want higher safety, you can upgrade to laminated tempered glass, which will have its fragments stuck to the PVB film and prevent falling.
7. Can sliding windows be made electric? How to choose between electric and manual models?
Electric models can be made, equipped with a motor and remote control system, and can also be equipped with a wind detection device to achieve automatic closing. Manual models have high cost performance, are simple to operate, and are suitable for home scenarios with low opening frequency; electric models are suitable for large-sized, heavy window sashes, or scenarios where they are installed at high places or in shops, requiring convenient operation.
8. Will the color of sliding windows fade? What should be noted during daily cleaning?
The surface of high-quality profiles is treated with powder coating or fluorocarbon coating, which has strong resistance to ultraviolet rays. Under normal use, it will not significantly fade for 10-15 years. Daily cleaning can be done with a damp cloth on the profiles and glass, avoiding the use of strong acid and alkali cleaning agents; do not scratch the surface of the profiles with sharp objects to prevent the coating from peeling off.
9. What is the maximum size of the sliding window? What are the considerations for customization?
The width of a single sliding window is 600mm-1200mm, and the height is 800mm-2100mm. The total width of multi-track sliding windows can reach 6000mm. During customization, large-sized window sashes need to be upgraded with thicker profiles and heavy-duty pulleys, and the building opening's load-bearing capacity should be confirmed to avoid instability due to excessive weight of the window sash.
10. How is the sound insulation effect of sliding windows? How to improve the sound insulation performance?
The sliding window with standard 5+12A+5mm insulating glass has a weighted sound insulation value of ≥30dB, which can block daily noises. To enhance the sound insulation effect, you can upgrade to triple-pane insulating glass or laminated insulating glass. At the same time, ensure that the sealing strips are intact to minimize sound leakage through the gaps.
