The Armored Entry Door is a high-security entrance door system featuring a steel-aluminum composite structure, balancing safety performance, structural stability, and spatial comfort. This door type utilizes a combination of steel and aluminum in its construction, with a door leaf thickness of 90mm.  Through the layering of multiple panels and polyurethane foam filling, it forms a stable structure, enhancing overall impact resistance while effectively controlling heat transfer and noise penetration. The door frame width is 45mm, and with a door opening compatibility range of 105–138mm, it is suitable for various building wall conditions.

This product series supports a wide range of color and surface finish customizations, encompassing various metallic textures, fine sand textures, and composite coating effects. It can be flexibly selected according to different building facade styles and spatial design requirements, ensuring overall harmony, visual depth, and stable performance over the long term.

This series supports customization of various hardware accessories, covering different materials and surface treatment options. Styles range from minimalist to decorative, allowing for seamless integration with the door color and design, meeting the overall functional and aesthetic requirements of the complete door system.

This series of doors can be customized with two smart fingerprint lock options, supporting multiple unlocking methods such as fingerprint recognition and password entry. The locks have a design that is consistent with the door's overall style, balancing ease of use with comprehensive security requirements.

1. Stable Load-Bearing Structure

The Armored Entry Door features a steel-aluminum composite door body structure. The overall thickness of the door leaf is 90mm, with an internal steel frame and outer aluminum panels forming a multi-point load-bearing system. Actual testing shows that a single door can withstand a structural load exceeding 200kg, maintaining door leaf flatness even under long-term opening and closing conditions. Door body deformation is controlled within ±1mm, effectively reducing the risk of sagging due to gravity and ensuring long-term stability of the door gap.

2. High-Efficiency Thermal Insulation Performance

The door body is filled with high-density polyurethane foam material, with a density controlled at 40–45 kg/m³, forming a continuous insulation layer. Tests show that its overall heat transfer coefficient can be reduced to below 1.8 W/m²·K. In environments with large temperature differences between indoors and outdoors, it significantly reduces heat exchange, improving temperature stability in the doorway area, meeting the standards for Armored Entry Doors with specific thermal insulation requirements.

3. Multi-Directional Opening Options

This Armored Entry Door supports outward opening, inward opening, and bidirectional opening designs. The door frame and hinge system have undergone structural verification and can operate stably within a door opening width range of 105–138mm. The multi-opening mode separates daily passage and ventilation functions while maintaining the door's sealing performance. The opening angle can reach over 110°, suitable for entrance spaces requiring high flexibility of use.

4. Durable Hardware System

The door is equipped with a stainless steel concealed hinge structure, with a single hinge bearing capacity exceeding 200kg and a tested opening and closing lifespan of over 100,000 cycles. The lock body uses a 40×600mm large stainless steel lock body structure with evenly distributed locking points, maintaining stable engagement even under frequent use conditions, reducing door loosening problems caused by hardware wear.

5. Precision Panel Craftsmanship

The front panel is available in 2mm, 4mm, or 6mm precision-engraved aluminum panels, with a panel flatness error controlled within ±0.5mm. The back panel uses non-standard 1.0mm metal sheet material, with multi-layer fixing technology to enhance overall rigidity. This structure improves the door's impact resistance while ensuring that the appearance does not bulge or deform during long-term use, meeting the manufacturing requirements of high-standard Armored Entry Doors.

1. Detached House Entrance

In detached house entrance scenarios, the Armored Entry Door can withstand frequent opening and closing and environmental temperature fluctuations. The 90mm door leaf thickness and polyurethane filling structure help stabilize indoor temperature, reduce heat exchange at the doorway, and improve living comfort, while also meeting the demands of long-term, high-frequency use.

2. Low-Rise Building Entrance

For the main entrance of low-rise buildings, this door type strikes a balance between structural strength and sealing performance. The 45mm door frame width and multi-point locking system ensure the door remains stable under wind pressure and external forces, making it suitable for building projects with specific standards for entrance security and durability.

3. Urban Renewal Projects

In urban renewal or old house renovation projects, the 105–138mm door opening compatibility range reduces on-site renovation costs. Multiple opening methods and customized panel options allow the Armored Entry Door to be upgraded and installed without altering the original structure, improving the overall entrance quality.

4. High-End Rental Properties

High-end rental properties have strict requirements for door durability and maintenance costs. The door's concealed hinge system and long-life lock body reduce the frequency of future repairs, maintaining stable operation over long rental periods and reducing operational and maintenance pressure.

5. Multi-Functional Residential Entrance

In residential entrances that require both passage and ventilation, the multi-opening door structure allows for switching between different opening modes. The Armored Entry Door maintains sealing performance while separating daily entry and ventilation needs, making it suitable for multi-functional residential entrance designs.

1. Surface Cleaning and Maintenance

It is recommended to wipe the door panel surface with a neutral detergent and a soft cloth every 2-3 months. Avoid using cleaning products containing abrasive particles or strong acids and alkalis. Proper cleaning maintains the integrity of the textured coating and reduces the impact of minor surface scratches on the appearance and lifespan of the coating.

2. Regular Hardware Inspection

Check the condition of the hinges and lock body fixing bolts every 6 months to ensure they are not loose. For Armored Entry Doors with high opening and closing frequency, apply a suitable lubricant during inspection to maintain smooth operation of the hardware components and extend their service life.

3. Seal Structure Maintenance

The door seal strips should be checked annually for elasticity. If hardening or local deformation is found, they should be replaced promptly. A good seal helps maintain insulation and dustproof effects, preventing a decline in overall user experience due to reduced sealing performance.

4. Avoid External Impact

During daily use, avoid concentrated impacts on the door body or hanging heavy objects to prevent localized stress exceeding the structural design limits. Proper use maintains the flatness of the door leaf and reduces the risk of door deformation caused by external forces.

5. Environmental Adaptation Management

In high-humidity or high-salt-fog environments, it is recommended to shorten the inspection cycle and observe the surface condition of metal components. Timely cleaning and maintenance can mitigate the impact of environmental factors on the metal structure of the door body, maintaining the long-term stable performance of the Armored Entry Door.