1. The basic principle and structure of aluminum sliding doors
Aluminum sliding doors are combined with aluminum alloy frames and glass panels, and use track systems and pulleys to achieve horizontal sliding opening and closing. Its core principle is gravity guidance and track sliding: the door leaf is fixed by upper and lower tracks, and moves smoothly on the track with the help of pulleys. Some designs also enhance wind pressure resistance through anti-collision blocks or beams. Track types include single track, double track and triple track, and pulleys are divided into four-wheel and six-wheel configurations to ensure smooth pushing and pulling and stable load-bearing.
2. Core features of aluminum sliding doors
Lightweight and high strength
The density of aluminum alloy is only 1/3 of that of steel, but through the hollow core thin wall design, it has high bending strength, is durable and not easy to deform, and is especially suitable for large-area door leaf applications.
Excellent sealing
The sealing strip groove design is completed simultaneously during the extrusion molding of the profile, combined with three sealing structures (such as broken bridge aluminum profiles), effectively isolating water vapor, dust and noise, and improving air tightness and water tightness.
Corrosion resistance and low maintenance
The surface is treated by oxidation, electrophoresis and other treatments to form a protective layer with strong oxidation resistance. It does not require frequent painting and has a service life of more than 30 years.
Beautiful and flexible customization
It can present a variety of colors such as bronze and silver white, and can be matched with tempered glass, hollow glass or laminated glass to meet the needs of different decoration styles such as modern simplicity and industrial style.
Energy saving and environmental protection
The broken bridge insulation technology separates the inner and outer aluminum materials through PA66 nylon strips to reduce heat transfer; hollow glass improves thermal insulation performance, reduces energy consumption, and meets the standards of green building materials.
3. Classification and application scenarios of aluminum sliding doors
Light sliding door
Parameters: door frame depth 88mm, aluminum thickness 1.2mm, suitable for small balconies or bedroom partitions in ordinary residential buildings.
Features: Economical and practical, suitable for low-rise buildings, taking into account ventilation and space separation.
Heavy sliding door
Parameters: door frame depth ≥120mm, aluminum thickness 1.8mm, matched with 5+12A+5 tempered hollow glass, strong wind pressure resistance.
Application: high-rise residential buildings, villa entrances, strong wind resistance and safety.
Super heavy sliding door
Parameters: door frame depth 138mm, aluminum thickness 3mm, three-dimensional groove depth 40mm, excellent load-bearing capacity.
Scene: villa garden door, commercial space, places requiring high load-bearing and durability.
4. Six key points for purchasing aluminum sliding doors
Profile quality
Prefer primary aluminum-magnesium alloy (glossy cross-section without burrs), avoid recycled aluminum (easy to oxidize, short life), thickness recommended ≥1.4mm (window) or 2.0mm (heavy door).
Track and pulley
Tracks should be embedded copper bars or low-track designs (height ≤5mm) to prevent tripping and easy to clean; pulleys must contain bearing structures, smooth sliding without noise.
Glass configuration
Recommended tempered glass (safety and explosion-proof), high-rise or street-facing environments can choose hollow laminated glass (sound insulation + impact resistance) or Low-E glass (heat insulation and UV protection).
Hardware accessories
Check whether the handles, hinges, etc. are 304 stainless steel or brand accessories to ensure durability; heavy doors need to strengthen safety devices such as floor locks.
Sealing performance
Observe whether the rubber strips are flat and seamless. The thermal insulation strips of the broken bridge structure must be confirmed to be intact and unbroken to avoid the cold and hot bridge effect.
Brand and after-sales
Choose brands with good market reputation and quality inspection reports, such as well-known door and window companies, to ensure installation and later maintenance.
V. Daily maintenance and care guide
Cleaning suggestions
Wipe the frame and glass with a soft cloth dipped in neutral detergent to avoid strong acid and alkali corrosion on the surface; regularly clean the dust in the track to prevent jamming.
Hardware inspection
Lubricate the pulleys and hinges every quarter, tighten the loose screws; replace the sealing strips in time when they are aging to maintain airtightness.
Precautions for use
Avoid pushing or stepping on the track violently. Super heavy doors need to check the stability of the load-bearing structure regularly.
