Category: Aluminum Sliding Doors

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BAL-40 Rated Aluminium Sliding Doors

$75-150 /Square Meter

Frame material	Aluminum Alloy
option
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Payment Type: L/C,T/T
Incoterm: FOB,CFR,EXW,CIF
Min. Order: 1 Square Meter
Transportation: Ocean
Port: SHENZHEN

Description

Product Attributes

Model No.: WD-SD028

Brand: Wendou

Warranty Service: More Than 5 Years

After-sales Service: Online Technical Support, Onsite Installation, Onsite Training, Onsite Inspection

Engineering Solution Capability: Graphic Design, 3d Model Design, Total Solution For Projects

Application Scenario: Hotel, Villa, Apartment, Office Building, Hospital, School, Warehouse

Design Style: Modern, Traditional, Farmhouse, Industrial, European, Transitional, Mid-Century Modern, French, Chinese

Place Of Origin: China

Packaging & Delivery

Selling Units:	Square Meter
Package Type:	Adhesive protective film+Bubber film+Hardboard+Strechable plastic wrap+Non-fumigation plywood-crate
Picture Example:

Supply Ability & Additional Information

Packaging: Adhesive protective film+Bubber film+Hardboard+Strechable plastic wrap+Non-fumigation plywood-crate

Productivity: 150000㎡/year

Transportation: Ocean

Place of Origin: China

Supply Ability: 10000㎡/month

Certificate: NFRC/AS2047

HS Code: 7610100000

Port: SHENZHEN

Payment Type: L/C,T/T

Incoterm: FOB,CFR,EXW,CIF

Product Description

BAL-40 Certified Aluminum-Frame Sliding Door

BAL-40 is the wind pressure performance standard for doors and windows in the Building Code of Australia, established for extreme climates (such as coastal typhoon zones and strong sandstorm areas).

Core requirements are:

Wind Pressure Resistance: Must withstand a continuous wind pressure of 4000Pa (approximately 408kg/m²) and a transient impact wind pressure of 6000Pa (approximately 612kg/m²), equivalent to a direct impact from a force 17 typhoon (wind speed approximately 60m/s).

Structural Integrity: Under extreme wind pressure, the door leaf must deflect ≤50mm, with no hardware loss or seal failure.

Durability Testing: 10,000 opening and closing cycles must be passed to ensure long-term performance degradation.

2. Material Composition and Processing Advantages of Aluminum Sliding Doors

Aluminum Profile Frame:

Base Material: 6063-T6 aluminum alloy, with a tensile strength ≥215 MPa, a yield strength ≥180 MPa, and an elongation ≥10%, far exceeding the performance of ordinary aluminum (6063-T5).

Structural Optimization: A multi-chamber design (e.g., a 6-chamber structure) combined with 3mm-thick insulation strips (PA66 + GF25) achieves a thermal conductivity of only 0.12 W/(m·K), a 70% reduction compared to traditional aluminum.

Surface Treatment: Fluorocarbon spray coating (film thickness ≥60μm) or anodizing (AA25 grade), with a weather resistance of over 20 years and no corrosion after a salt spray test of ≥3000 hours.

Glass Configuration:

Double-layer tempered insulating glass: 5mm + 16Ar + 5mm, with a heat transfer coefficient K value ≤ 1.8 W/(m²·K), sound insulation of 38dB, and impact resistance meeting EN 12600 Class 1B1.

Laminated glass option: 1.52mm PVB film, with penetration resistance reaching P8B, capable of withstanding hailstones up to 50mm in diameter.

Hardware:

Pulley system: Stainless steel bearings + high-strength nylon wheels, load capacity ≥ 150kg, sliding resistance ≤ 1.2N/m, and a service life exceeding 150,000 cycles.

Lock: Multi-point locking design (≥ 3 locking points) with a tamper-resistant deadbolt, anti-vandalism time ≥ 30 minutes, meeting RC3 security standards.

3. Aluminum Doors Performance Characteristics and Data

Wind Pressure Resistance:

In simulated typhoon testing, BAL-40 certified doors can withstand 60m/s wind speeds (a force 17 typhoon) for one hour, with only 32mm of door leaf deformation, far below the standard requirement of 50mm.

Measured data from a coastal project shows that the use of BAL-40 doors reduced the building's exterior wall damage rate by 90% and the damage rate of indoor equipment by 85%.

Air and Water Tightness:

Air tightness reaches GB/T 7106 standard level 9 (the highest level), with air leakage of ≤0.5m³/(m·h) at a pressure differential of 10Pa.

Water tightness reaches level 6, with the ability to withstand a 300mm/h rainstorm (equivalent to a heavy downpour) for two hours without leakage.

Thermal and Sound Insulation:

The combination of insulating glass and thermally insulated aluminum profiles reduces the heat transfer coefficient of the entire door to 1.6 W/(m²·K), saving 40% energy compared to ordinary aluminum doors. With a sound insulation of 38 decibels, indoor noise levels are reduced to 35 decibels (equivalent to a library environment) in residences within 50 meters of a major traffic artery.

4. Custom Aluminium Doors Selection Recommendations and Application Scenarios

Buildings in Extreme Climates:

Coastal Residential Buildings: In typhoon-prone areas such as Australia's Gold Coast and Hainan, China, BAL-40 doors can withstand a Category 17 typhoon and provide indoor safety.

Desert Areas: In strong sandstorm areas such as Dubai and northwest China, their sealing properties prevent sand and dust intrusion, reducing indoor cleaning costs by over 60%.

Public and Commercial Buildings:

Airports and train stations: Electric sensor-operated BAL-40 doors, combined with 12mm tempered glass, have a load capacity of 200kg per door and operate over 10,000 times per day without failure.

Hospitals and Schools: Antimicrobial-coated aluminum profiles and fire-resistant glass are used, achieving a fire resistance rating of ≥90 minutes, complying with the GB 50016 fire protection standard.

Special Environment Adaptation:

For Highly Corrosive Areas: 316 stainless steel hardware with marine-grade anti-corrosion coating is used. Salt spray testing has proven corrosion-free for ≥5,000 hours, making it suitable for chemical plants, coastal ports, and other locations.

For Cold and Alpine Regions: Low-E glass with warm-edge spacers is used, achieving a heat transfer coefficient as low as 1.4 W/(m²·K), suitable for extreme environments down to -50°C.

5. Market Trends and Cost-Effectiveness

Market Penetration:

Australia accounts for 75% of the market, with an annual growth rate of 20% in coastal China. The global market size is expected to exceed US$1.5 billion by 2027.

Cost-Benefit Analysis:

The initial investment is 25% higher than that of ordinary aluminum doors, but the total lifecycle cost (including maintenance and energy consumption) is 35% lower, with a payback period of only 6-8 years.

A commercial complex project demonstrated that the use of BAL-40 doors reduced air conditioning energy consumption by 28%.