Zhejiang Shieldoors Security Technology Co., Ltd. was established in 2016 and is located in an expansive 45,000 m² production base. Building on 10 years of industry leadership and 6 years of international trade experience, the company generates an annual export revenue reaching USD 42,000,000.
Our commitment to excellence is maintained through rigorous ISO9001-certified quality control and third-party product testing methods, including CE, UL fire-rated, and hurricane-impact certifications. A dedicated quality inspection team of 78 QC specialists ensures that every entry door meets international safety standards. Working with a robust ecosystem of 1,400 supply chain partners, our trade background covers direct export, project bidding, and global supply chain integration, mainly targeting key markets in North America, Australia, and Southeast Asia.
Innovation is at the heart of our operations. Supported by 350 skilled R&D engineers, we launched 450 new product designs last year. We serve major real estate developers, architectural firms, and building material retail chains by offering tailored customization options ranging from soundproofing and thermal insulation features to smart lock integration and custom panel finishes.
Modern architectural entry doors require a complex synthesis of structural rigidity, thermal resistance, acoustic isolation, and high-security hardware integration. As a premier CE-certified manufacturer, Zhejiang Shieldoors utilizes primary T6063-T5 aluminum extrusions coupled with multi-cavity thermal break polyamide strips (PA66GF25) to achieve industry-leading energy performance.
By inserting 24mm to 34mm fiberglass-reinforced polyamide thermal barriers within the aluminum profiles, conductive heat transfer is reduced by up to 70%, achieving U-factors as low as 1.1 W/m²K.
Dual-sealed insulated glass units (IGUs) with warm-edge swisspacers and 90% Argon gas filling yield STC (Sound Transmission Class) ratings between 38 dB and 45 dB for extreme noise dampening.
Engineered for coastal dynamic wind loads exceeding 90 psf, featuring reinforced corner cleats, multi-point locking systems, and laminated impact-resistant glass compliant with Florida Miami-Dade NOA standards.
| Performance Parameter | Test Standard / Certification | Achieved Value / Technical Index |
|---|---|---|
| Thermal Transmittance (U-Value) | EN ISO 10077-2 / NFRC 100 | 1.1 – 1.6 W/m²K (Customizable to passive house standards) |
| Solar Heat Gain Coefficient (SHGC) | NFRC 200 | 0.22 – 0.35 (Spectrally selective Low-E options) |
| Acoustic Insulation Rating | ISO 140-3 / ASTM E90 | STC 38 dB – 45 dB / Rw 40 dB |
| Wind Pressure Resistance | EN 12210 / ASTM E330 | Class C5 (Up to 5000 Pa design pressure) |
| Air Infiltration / Water Penetration | EN 12207 / EN 12208 | Class 4 Air Leakage / Class E1050 Water Resistance |
| Aluminum Alloy Specification | GB 5237.1 / ASTM B221 | High-grade 6063-T5 / 6061-T6 extrusion profiles |
| Surface Powder Coating | AAMA 2604 / AAMA 2605 | AkzoNobel / PPG Fluorocarbon (PVDF) 30-year finish durability |
Operating out of our 45,000 m² smart factory, our automated production lines utilize computerized numerical control (CNC) equipment to deliver micrometer-level precision across all cutting, milling, glass cleaning, and assembly procedures.
Specifically engineered for North American coastal belts (Florida, Caribbean, Gulf Coast), our heavy-duty double glazed aluminum doors incorporate Miami-Dade NOA certified laminated impact glass, preventing pressure equalization failure during Category 5 hurricane force winds.
For European and Nordic climates requiring thermal optimization, our triple-pane and double-glazed warm-edge aluminum systems eliminate thermal bridging, preventing interior condensation and lowering heating costs in freezing temperatures.
Designed to handle high foot traffic with narrow-sightline aluminum frames, integrated automatic sensor options, multi-point biometric locking, and custom powder coatings engineered to withstand UV exposure and salt spray environment degradation.
Operating at the center of Zhejiang's advanced industrial ecosystem, Zhejiang Shieldoors integrates over 1,400 specialized supply chain partners. This vertical integration allows for complete control over raw material procurement, aluminum extrusion alloying, hardware forging, and glass tempering.
Direct partnerships with top aluminum ingot suppliers ensure steady raw material access, protecting projects against international metal price volatility and offering stable contract pricing for major real estate developments.
With 350 in-house R&D engineers, initial CAD/BIM drawings are translated into physical custom door prototypes within 7 to 10 working days, significantly reducing pre-construction approval lead times.
Located near major ocean ports (Ningbo and Shanghai), our export operations team manages seamless container loading, sea-freight packing, customs clearing documentation, and direct delivery to job sites worldwide.
Pioneering thin-film photovoltaic double glazed panels built directly into aluminum door transom frames, converting ambient daylight into clean auxiliary electrical energy for smart home security modules.
Seamless embedding of invisible facial recognition scanners, 3D fingerprint sensors, and encrypted mobile access gateways directly within the insulated aluminum profile stiles.
Transitioning from standard gas-filled double glazing to ultra-thin micro-space Vacuum Insulated Glass units, pushing overall entrance door thermal insulation into sub-0.6 U-value performance territories.
Shieldoors