Meidoor Factory’s 76 Series Australian-Style Crank Windows Achieve N4 Rating in AS2047 Compliance Testing

We are proud to announce that Meidoor Factory’s 76 Series Australian-style crank windows have successfully passed the rigorous AS2047 certification tests, achieving the N4 rating for structural performance and weather resistance. This milestone underscores Meidoor’s commitment to delivering premium-quality, durable fenestration solutions for both residential and commercial applications in Australia and globally.

1.Key Achievements in AS2047 Testing

The 76 Series underwent comprehensive testing in accordance with Australia’s AS 2047: Windows in Building standard, which evaluates critical performance metrics including:

1.Wind Resistance
The windows demonstrated exceptional structural integrity under simulated extreme wind loads, exceeding the N4 classification (equivalent to 2000 Pa design pressure for Wind Region 4) . This ensures they remain stable in cyclonic conditions, protecting buildings against high-velocity winds and debris impact.
2.Water Penetration Resistance
In water pressure tests simulating heavy rainfall (70–140 mm/h), the 76 Series achieved zero leakage at 150–450 Pa, far surpassing AS2047’s requirements for water tightness .
3.Air Infiltration Control
The design’s precision-engineered seals and gaskets reduced air leakage to <1.0 L/s·m² at 10 Pa pressure differential, meeting the highest energy efficiency benchmarks .
4.Operational Efficiency
The crank mechanism required <50 N of force for smooth opening/closing, ensuring compliance with AS2047’s ergonomic standards .

2.Technical Innovations Driving Performance

The 76 Series incorporates advanced features to meet Australia’s demanding climate conditions:

1.Multi-Chambered Aluminum Frame

Constructed from 6063-T5 thermal break aluminum, the windows offer superior corrosion resistance (tested to 500 hours in neutral salt spray ) and thermal insulation, reducing heat transfer by 30% compared to standard designs.

2.Dual-Seal System

A combination of EPDM gaskets and polyurethane foam strips creates a triple-layer barrier against water and air infiltration, validated through dynamic pressure cycling tests .

3.Reinforced Hardware
German-engineered Roto hinges and handles underwent 10,000-cycle durability testing, maintaining full functionality without degradation .