High-performance windows and structural door solutions designed to meet extreme weatherproofing, architectural minimalist frames, and acoustic insulation specifications.
Established in 2014, with industrial roots dating back to 1993 as a pioneering aluminum extrusion force, Shandong Envi Doors and Windows Co., Ltd. has evolved into a global leader in high-performance aluminum window and internal door fabrication. Spanning over an expansive footprint of 100,000 square meters, our production plant operates at the intersection of material science and state-of-the-art automation.
Our core competency lies in our integrated vertical supply chain. Unlike standard assemblers, we control the entire lifecycle of our products. From raw aluminum alloy formulation to precision extrusion, heat treatment, surface finishing, and finalized mechanical assembly, our team of engineers ensures every door and window complies with rigorous mechanical and acoustic parameters. Our annual designed production capacity of aluminum profiles reaches approximately 50,000 tons, generating an output value of 1 billion yuan (RMB).
Over the past decade, we have partnered with developers, architects, general contractors, and distributors to supply engineered opening solutions for more than 1,500 projects across 100+ countries and regions. Our products seamlessly conform to international building codes, including European (CE) standards, Australian (AS2047) guidelines, and North American energy efficiency frameworks.
To achieve high dimensional tolerance and surface finishes, our factory houses a massive fleet of advanced extrusion lines ranging from 600 tons to 2,500 tons. This machinery allows us to extrude intricate internal web configurations that enhance the structural performance and thermal break properties of our profiles. Our facility is equipped with:
Our step-by-step manufacturing flow, showing the transition from premium billet processing to high-precision milling, drilling, and quality inspection.
The physics behind modern internal doors: acoustic decibel attenuation, structural alloys, and moisture-barrier designs.
Modern interior doors must function as acoustics barriers, especially in high-density multi-family residential complexes, commercial offices, and luxury hotels. Shandong Envi utilizes multi-chambered aluminum profiles fitted with continuous co-extruded EPDM (Ethylene Propylene Diene Monomer) gasket systems.
By integrating double-glazed insulated glass units (IGUs) filled with Argon gas and using laminated PVB (Polyvinyl Butyral) layers, our internal doors achieve sound transmission class (STC) ratings of up to 42 dB. This ensures privacy and compliance with international noise reduction standards for modern working and living environments.
The durability of a door hinges on its alloy composition. We formulate our extrusions using primary aluminum ingots (Grade A 6063 alloy) with thermal tempers of T5 or T6. This chemical composition provides high tensile strength, excellent corrosion resistance, and superior surface finishing capabilities.
Our profiles maintain strict thickness tolerances (typically exceeding the 2.0 mm wall thickness threshold for high-traffic entry doors), preventing warping, sag, or mechanical misalignment over decades of continuous operation.
For transitions between temperature-controlled zones (such as balconies, patios, and temperature-segregated office corridors), thermal bridging is a critical loss vector. Our structural doors incorporate high-strength polyamide (PA66) glass-fiber reinforced thermal barriers.
This design splits the inner and outer aluminum frames, dropping overall heat transfer coefficients (U-Values) to less than 1.6 W/(m²·K). The result is a significant decrease in building HVAC load, meeting Net-Zero and LEED certification requirements.
Providing engineered opening solutions tailored to specific commercial, institutional, and residential building typologies.
Minimalist narrow-profile sliding glass doors designed for structural resilience and high cycling. Includes options for integrated smart access, card reader preparation, and acoustic buffering between offices and lobbies.
Bi-folding and pocket sliding doors that maximize indoor-outdoor connectivity. Features zero-threshold drain tracks to ensure barrier-free transition while preventing rainwater ingress during heavy storm events.
Extremely durable single-swing internal aluminum doors with antimicrobial surface treatments. Designed to handle frequent sanitizing cycles and fitted with robust pivot hinges to support heavy-use environments.
Ensuring your structural components arrive on schedule, fully compliant, and damage-free.
Navigating international import-export regulations requires a high degree of supply chain visibility. At Shandong Envi, we provide a transparent tracking model, from production scheduling to final customs clearance documents.
Our structural window and door systems are subjected to NATA-accredited testing regimes for structural deflection, air infiltration, water penetration resistance, and ultimate limit state strength. The AS2047 individual series certification confirms that our structural profiles can withstand extreme wind loads (up to N6 ratings for residential/commercial projects in coastal cyclonic regions). For European clients, we issue comprehensive Declaration of Performance (DoP) certificates detailing CE compliance across acoustic, thermal, and load-bearing parameters.
To prevent shipping damage, our logistical protocol involves a multi-layer protective packaging system:
Detailed shop drawings and wind load calculations approved by the client's engineering team prior to tooling.
Billet heating, extrusion, aging oven treatment, powder spraying, and thickness validation.
Mechanical joinery, glazing, weatherproofing, and final QC water and air testing.
Steel frame crating and container loading, tracked from Qingdao Port directly to destination.
Critical validation metrics for procurement directors, quantity surveyors, and project estimators.
When procurement divisions source structural components from China, assessing total cost of ownership (TCO) is crucial. A low unit cost can be offset by site modifications, delays, or failing local building codes. Here is an inspection framework for evaluating supplier capability:
Ensure the supplier extrudes their own profiles rather than purchasing low-grade stock. Controlling the extrusion line ensures strict material composition and quality control.
Faulty lock cylinders and low-grade rollers cause door failures. Confirm the supplier uses reliable European hardware brands or tested domestic alternatives.
All glazing must be tempered, laminated, or insulated. Request official test certifications for impact resistance and solar heat gain performance.
Shandong Envi addresses these procurement risks by providing complete technical documentation, including CAD/BIM block details, structural calculation reports, material certificates, and direct access to our engineering team during the design phase.
Get detailed technical answers straight from our engineering team.
Powder coating relies on electrostatic spray deposition, applying a dry powder polymer that is heat-cured to form a robust, protective layer. It offers excellent impact resistance and a wide range of RAL color options. Electrophoresis, conversely, immerses the extruded profiles in an aqueous resin bath, applying an electric current to build a uniform paint coating over every surface. Electrophoresis yields superior thickness control and excellent corrosion resistance, making it suitable for high-humidity or marine applications.
Our engineering team performs structural calculations using local wind pressure parameters (such as Ultimate Limit State design). We utilize high-moment-of-inertia profiles reinforced with inner steel or thick-wall aluminum mullions where necessary. All structural systems undergo physical wind load and deflection tests to ensure zero joint failure and minimum deflection under pressure.
For standard profiles, our turnaround time is typically 25 to 30 days from shop drawing approval and deposit confirmation. If a project requires custom extrusion dies, tool creation and profile validation add roughly 10 to 15 days to the initial production run. We also coordinate with shipping agents to offer optimized container logistics from our facility directly to major sea ports.
Yes, we offer custom lock preps and profile wire routes for electronic strikes, drop bolts, magnetic lock hardware, and fingerprint readers. Our factory works directly with your access control specifications to ensure precise wiring channels and hardware compatibility.
Engineered for extreme performance, structural durability, security, and specialized commercial layouts.
Envi Window