The Exterior Security Door is a high-security entrance door product designed for high-end residential and commercial entrances. It integrates structural safety, material strength, system sealing, and highly customizable aesthetics to provide a complete solution for users. These doors typically utilize ultra-hard steel alloy and anti-pry steel composite structures, with door leaf thicknesses reaching up to 95mm. Through a full-height design and a four-sided sealing system, overall stability and impact resistance are significantly enhanced. Compared to traditional security doors, the Exterior Security Door incorporates multi-layer filling and aerospace-grade polyurethane materials in its structure, reducing resonance and noise transmission while increasing the overall rigidity of the door.

This series supports customization in a variety of colors and surface textures, including sophisticated gray tones, brushed metal finishes, delicate woven textures, and modern matte effects.  These options allow for flexible selection based on project requirements and overall design style, achieving both visual consistency and personalized expression.

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. High Strength

This Exterior Security Door features a composite door body structure made of ultra-hard steel alloy and anti-pry steel. The door panel has a non-standard thickness of 1.0mm, and the overall door leaf thickness is approximately 95mm.  In stress tests, it can withstand concentrated impact forces exceeding 800N without structural deformation.

2. Stability

The door body is filled with aerospace-grade polyurethane material, with a density controlled within the 38–45kg/m³ range. This effectively suppresses internal cavity vibration while maintaining the strength of the door leaf. Actual tests show that this structure has a resonance attenuation rate exceeding 45% in the frequency range of 125–4000Hz. Combined with a full-height door design, the Exterior Security Door maintains door leaf flatness and closing stability even under long-term opening and closing cycles and temperature variations.

3. Anti-Pry Protection

This product adopts an interlocking anti-pry steel structure design. The door frame back frame width is approximately 50mm, and the trim width is approximately 100mm, forming multiple interlocking interfaces in the contact area between the door leaf and the door frame. Within the common prying angle range of 15°–30°, the door body's prying displacement is controlled within 2mm, effectively blocking the insertion of prying tools. This is further enhanced by a stainless steel 5-hole or 3D concealed hinge system, further strengthening the overall anti-pry performance.

4. Sealing Performance

The Exterior Security Door features a four-sided continuous sealing structure, with multiple sealing strip systems between the door frame and the door leaf. Under standard installation conditions, the overall airtightness of the door can reach above Level 6 of the national standard. Test data shows that in a 50Pa pressure difference environment, the air permeability is less than 1.5m³/㎡·h, effectively reducing the entry of outdoor cold air, dust, and noise, improving overall living comfort and energy efficiency.

5. Customization

While maintaining standardized safety structure standards, this Exterior Security Door supports multi-dimensional customization options, including door panel texture, color combinations, and decorative line materials. The surface treatment uses a highly weather-resistant coating process, with a salt spray test time exceeding 500 hours, and color difference variation controlled within ΔE≤1.5, ensuring that the customized appearance maintains a stable and consistent visual effect during long-term use.

1. Private Residences

The Exterior Security Door is suitable for the entrance spaces of private residences requiring high levels of security and privacy. Its multi-point locking system and anti-pry steel door frame effectively prevent unauthorized entry, while the four-sided sealing system reduces external disturbances during nighttime and low-traffic periods, providing a stable and reliable foundation for home security.

2. High-End Residential Developments

In high-end residential developments, this type of door is often used as a standardized entrance system. Through standardized structures combined with customized appearance options, it ensures consistent security across the entire building while meeting the different door opening size requirements of various unit types, making it suitable for large-scale installation and unified property management.

3. Office Buildings

For the entrances of standalone office buildings, this product allows for quick switching between daily office use and nighttime closure. Its door structure remains stable under frequent opening and closing conditions, and the locking system can be integrated with existing management processes, meeting the needs of office spaces that prioritize both order and security.

4. Custom Projects

In custom-built or renovated buildings, the Exterior Security Door can be configured as an independent security unit. By adjusting the door size, opening method, and appearance details, it can be adapted to special structural door openings, upgrading security performance without altering the main building structure.

Q: What are the main aspects of the security performance of the Exterior Security Door?

A: This type of door achieves enhanced overall security performance through ultra-hard steel alloy door panels, a 95mm thick door leaf structure, anti-pry steel interlocking design, and a multi-point locking system. The multi-layer force distribution structure effectively reduces the risk of concentrated external force damage, giving the door higher impact resistance and anti-pry capabilities in actual use.

Q: Is this type of door suitable for long-term outdoor use?

A: The surface of the Exterior Security Door uses a high-weather-resistant coating process, which has passed over 500 hours of salt spray testing, effectively resisting moisture, ultraviolet rays, and temperature changes. Combined with stainless steel hinges and lock components, it is not prone to rust or performance degradation during long-term outdoor use.

Q: Does the increased door thickness affect the daily opening experience?

A: Although the door leaf thickness reaches approximately 95mm, through reasonable counterweight design and a high-load-bearing hinge system, the door opening torque is controlled within a reasonable range. Actual tests show that the force required for normal opening is not significantly different from conventional high-end entrance doors, and will not affect the daily user experience.

Q: Can the appearance be customized according to project requirements?

A: The Exterior Security Door supports customization of various textures, colors, and decorative line combinations, including starry sky small square patterns and metal trim options. Customization is carried out under established structural standards to ensure that appearance adjustments do not affect the door's original safety and sealing performance.

Q: Is frequent maintenance required after installation?

A: The door structure is designed for long-term stability. Under normal use conditions, only periodic checks of the hinge and lock tightening status are required. The anti-pry steel structure and high-density filling materials themselves have high durability, effectively reducing the frequency of maintenance and usage costs.