Architectural Precision, Industry 4.0 Manufacturing, and Enterprise Sourcing Solutions for High-Performance Fenestration Systems
Engineered to international building standards including NFRC, AS2047, and NOA Miami-Dade Hurricane Impact Certifications.
Driving architectural innovation through advanced engineering, rigorous quality assurance, and seamless ODM/OEM integration across global markets.
Addressing the complex technical requirements of B2B procurement officers, real estate developers, and facade engineers across North America and Europe.
| Evaluation Parameter | Standard OEM Supplier | Grandex ODM/OEM Custom Manufacturing | Strategic Enterprise Benefit |
|---|---|---|---|
| Extrusion Alloy Alloy & Temper | Recycled 6063-T5 Profile | Virgin 6063-T5 / 6060-T6 High-Tensile Aluminum | Superior structural deflection resistance & surface anodization quality |
| Thermal Insulation Tech | Standard PVC Thermal Strip | Polyamide PA66 GF25 Reinforced Thermal Breaks | Extremely low U-Factor meeting energy codes (LEED, Passive House) |
| Impact Resistance | Basic Tempered Glass | SGP Laminated Hurricane Impact Glass (NOA Compliant) | Withstands Category 5 storm pressure and high-velocity debris impact |
| Hardware Integration | Single-point Latch Lock | Multi-Point Security Locks & IoT Smart Biometric Locks | EN1627 RC2/RC3 Security Level; Emergency 15N Panic Bar escape compliant |
| Quality Assurance Depth | Visual Sampling Inspection | 100% In-Line CNC Quality Control + 45-Member QA Audit | Zero-defect delivery rate for high-rise commercial installations |
Pioneering advanced material science, thermal barrier optimization, and intelligent building integration for future-proof entry door systems.
Explore our 35,000 m² modern manufacturing hub utilizing automated CNC centers, double-head precision saws, and intelligent sorting lines.
From luxury residential compounds to high-traffic commercial hubs and emergency public infrastructure.
From initial concept sketches to structural finite element analysis (FEA), mold extrusion, prototype validation, and full-scale factory production.
Review architectural CAD/BIM models, structural wind load constraints, U-factor targets, and local compliance standards (NFRC, AS2047, CE).
85+ R&D engineers develop dedicated extrusion profile dies and produce physical prototypes within 14 business days for customer inspection.
Prototypes undergo air infiltration, water penetration, acoustic isolation, and structural deflection testing in our ISO 9001 certified laboratory.
Automated CNC cutting, drilling, intelligent sorting, and protective multi-layer packaging guarantee safe global sea freight transportation.
Comprehensive answers to direct questions asked by commercial buyers, structural specifiers, and global importers.
Our flexible OEM manufacturing system supports project-based orders as well as distributor volume contracts. Standard MOQ for customized profile extrusions starts at 50 sets for standard commercial door profiles, while fully custom die creation requires a minimum profile weight threshold of 1.5 metric tons (which can be credited back upon achieving target annual order volumes).
Grandex products undergo strict physical testing at independent accredited laboratories (such as Intertek and SGS). We engineer systems utilizing multi-cavity polyamide PA66-GF25 thermal break profiles, Low-E double and triple glazing with argon gas fill, and dual EPDM weather-stripping gaskets, meeting NFRC U-factors below 0.30 BTU/h·ft²·°F and AS2047 ultimate limit state wind pressure ratings exceeding 3000 Pa.
Yes. Our 85-member engineering department specializes in hardware integration. We seamlessly embed motorized multi-point locksets, facial recognition scanners, fingerprint sensors, keypads, and panic hardware (including 15N emergency push bars) into the aluminum frame cavities, delivering pre-wired plug-and-play smart entry systems.
Every shipment follows our strict export packaging protocol: aluminum frames are wrapped with protective scratch-resistant film and foam corner guards, while double-glazed glass units are secured inside ISPM 15 certified fumigated wooden crates with moisture-absorbent silica packs. Our 45-member QA team verifies loading alignment to guarantee container load stability.
We provide Qualicoat Class 2 / Class 3 powder coating, 25μm architectural anodizing, and 3-coat fluorocarbon PVDF finishes. These coatings are specifically formulated to withstand high-salt marine atmospheres (passing ASTM B117 3,000-hour salt spray testing) without chalking, blistering, or surface corrosion.
Explore our premium bi-fold systems, narrow-frame entry doors, vertical sliding hung windows, and heavy-duty hurricane assemblies.
Grandex Door