High-performance certified door and window systems engineered for commercial, residential, and industrial applications globally.
Combining advanced CNC structural machining, thermal engineering, and strict ISO 9001 compliance for enterprise B2B procurement globally.
Established in 2014, Grandex Door Solutions Co., Ltd. is a premier entry door manufacturer operating from a modern 35,000 m² facility. With 16 years of industry expertise and 8 years of dedicated export experience, the company generates an annual export revenue of USD 28 million. Grounded in strong OEM and ODM trade backgrounds, our products primarily serve North America and Western Europe, supported by a network of over 1,200 supply chain partners. We cater to leading building material distributors, real estate developers, and commercial contractors.
Quality is integral to our operations: supported by strict ISO 9001 certified internal testing and third-party laboratory verification, our 45-member QA team ensures rigorous quality control throughout production. Driven by an active R&D division with 85 specialized engineers, we introduced 120 new door designs last year and offer full custom solutions spanning custom dimensions, security locks, surface finishes, and decorative glass panels.
As modern architectural design evolves toward grander scale, minimalist aesthetics, and seamless indoor-outdoor transitions, oversized pivot entry doors have become the benchmark for modern residential villas, luxury commercial headquarters, and high-end retail developments. By shifting load-bearing mechanics from side hinges to heavy-duty floor pivots and top transom pivots, our aluminum pivot doors deliver smooth rotational motion across panels exceeding 3 meters in height and 2 meters in width.
Analyzing structural physics, thermal demands, and local compliance requirements for commercial and residential buyers.
Large-format pivot doors face high wind loads and structural deflection. Our engineered 6063-T6 aluminum profiles feature internal corner cleats and multi-chamber reinforcement, ensuring deflection limits comply with ASTM E330 structural performance specs under extreme pressures.
Strict energy codes (such as IECC in North America and EnEV in Europe) demand lower overall U-factors. We integrate polyamides (PA66-GF25) thermal breaks and double/triple argon-filled Low-E glass units, achieving exceptional air tightness and thermal isolation.
Addressing perimeter air leaks in pivot systems is key. Our factory utilizes multi-layer EPDM drop-down seals and magnetic weather-stripping along top and bottom thresholds, delivering acoustic insulation up to STC 42 dB and Class 4 air permeability.
| Performance Metric | Standard Commercial Entry Door | Grandex Heavy-Duty Pivot Door System | Global Compliance Standard |
|---|---|---|---|
| Max Panel Dimensions | 1200mm (W) x 2400mm (H) | Up to 2500mm (W) x 4500mm (H) | Custom Architectural Specs |
| Thermal Transmittance (U-Value) | ~ 2.8 - 3.5 W/m²K | ≤ 1.2 - 1.6 W/m²K (Thermal Break) | NFRC / Passivhaus Standards |
| Wind Pressure Resistance | 1.5 - 2.5 kPa | Up to 5.0 kPa (Hurricane Grade) | TAS 201/202/203 & Miami-Dade NOA |
| Hardware Cycle Reliability | 100,000 Operations | 500,000+ Cycles (Hydraulic Pivot) | EN 1154 / ANSI Grade 1 |
| Security Class | Standard Single Latch | 5-Point Automatic Electric Lock | RC3 / EN 1627 European Standard |
Inside our 35,000 m² facility: Precision CNC machining, automated sorting lines, and stringent QA inspection equipment.
Integrating smart automation, advanced material science, and passive building standards into next-generation entry doors.
Seamlessly integrated concealed motorized drives paired with facial recognition, 3D fingerprint sensing, and Smart-Home IoT protocols (Matter/Zigbee) allow effortless hands-free opening for heavy panels up to 800 kg.
Adopting ultra-thin Vacuum Insulated Glass units delivers U-values as low as 0.60 W/m²K, comparable to solid insulated walls. This allows pivot entry doors to meet stringent Passive House (Passivhaus) standards globally.
To support global corporate ESG criteria, our surface finishing utilizes zero-VOC powder coatings and fluorocarbon finishes (PVDF 3-coat) with 30-year resistance against coastal salt spray corrosion and UV fading.
Ensuring full regulatory compliance and seamless job-site integration across North America, Europe, and Australia.
Our complete line of aluminum entry doors, awning windows, sliding doors, and hurricane-impact solutions carries global certifications. Supported by our 45-member QA team, every batch undergoes rigorous in-house physical testing and third-party laboratory verification:
We provide full turn-key engineering support tailored to real estate developers, building material wholesalers, and commercial general contractors:
Expert technical insights regarding pivot door wholesale, customization, weather sealing, and structural performance.
Explore our full line of commercial and residential windows, swing doors, sliding systems, and folding doors.
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