8 min read
Our aluminum alloy frame clean room windows are not simply products we pull from a shelf. At Jusen Doors & Windows Manufacturing Co., Ltd., we engineer each window as a fully customized, documentation-backed system designed to fit the exact pressure, airtightness, and particle‑control demands of your classified facility. With 20 years of solid‑wood and aluminum window manufacturing behind us, our independent design team treats cleanroom windows just as seriously as our high‑end entry doors and architectural aluminum systems. We own every step—extrusion preparation, anodizing or powder coating, assembly, and final testing—so that when you open a crate from our factory, you receive a fully verified, compliant, and install‑ready unit.
Cleanroom Windows as a Custom Engineered Product, Not a Commodity
When your project calls for an aluminum alloy frame clean room window, you don’t need a generic panel that “sort of” fits. Our factory builds each window to your specification: any dimension, single or double glazing with desiccant, flush‑mount frames, recessed configurations, and integrated blind systems if required. Our self‑built aluminum processing workshop lets us hold frame tolerances to ±0.5 mm, a critical factor for maintaining laminar airflow patterns and avoiding seal misalignments. No matter how complex your layout, our design team produces CAD construction drawings within 24 hours.
How Our 20‑Year Heritage Translates to Reliable Cleanroom Windows
You might wonder how a company known for solid wood doors also excels at sterile‑environment windows. The answer lies in our vertically integrated infrastructure. Our in‑house wood drying and metal finishing lines taught us the discipline of material stability and surface cleanliness long before we applied it to aluminum. Today our aluminum alloy clean room windows benefit from the same rigorous contamination control, whether we are anodizing extrusions in our spray booths or wrapping finished units for shipment with vacuum‑forming and protective films. The result is a window that behaves predictably from the moment it leaves our factory to years of washdown cycles in your facility.
ISO 14644 and ISO 9001:2015 – The Certifications Behind Our Cleanroom Window Production
When a B2B buyer asks “What certifications should an aluminum alloy frame clean room window have?”, our engineers have a complete answer. Our quality management system is certified to ISO 9001:2015 (Cert No. 00925Q10284R3M, issued by an accredited certification body), ensuring every process from design to delivery is traceable and repeatable. For cleanroom window performance, we align our designs with ISO 14644‑1 class‑specific particle limits [1], and we supply the supporting material certifications, surface‑finish test reports, and dimensional conformance data you need for your validation protocol.
ISO 14644‑1 Compliance – Guaranteeing Air Cleanliness Through Window Design
Whether your room is ISO Class 5, 6, 7, or beyond, the detailing of our aluminium alloy frames directly contributes to cleanliness. We use non‑particle‑shedding gaskets and design every joint to present a flush, crevice‑free interior face that resists microbial and particulate accumulation. Our internal test reports verify that, under simulated laminar flow, the frame surfaces meet the particle emission expectations associated with the target class [1]. You might ask, “Can you supply ISO Class 5 compatible cleanroom windows?” Absolutely—our engineers will specify a flush‑glazed, double‑sealed configuration and validate it with our in‑house pressure‑decay test data.
CE Marking & EN 14351‑1 – Full European Conformity for Aluminum Windows
Every aluminium alloy window leaving our factory carries CE marking under EN 14351‑1 for windows and doors, with performance characteristics verified by a notified body (example: No. 2797). This harmonized standard covers the structural safety, air permeability, and water‑tightness you depend on, even when the window is installed in a cleanroom [2]. We provide the Declaration of Performance (DoP) for each batch, so your local building control authority or validation consultant sees immediately that the product meets European regulatory expectations.
Material‑Level Certifications – FDA‑Compliant Gaskets & EPDM Seals
For pharmaceutical or food‑grade cleanrooms, we frequently hear: “Do you offer FDA‑compliant seal materials for pharmaceutical cleanrooms?” Yes. Our standard EPDM gaskets can be upgraded to formulations that meet FDA 21 CFR 177.2600, with material certificates from approved suppliers included in your documentation package. We don’t just claim it; we hand you the supplier’s certification number and batch traceability.
In‑House Testing Equipment That Validates Every Aluminum Clean Room Window We Ship
A certificate on paper is only as good as the physical evidence behind it. That’s why our self‑built aluminium processing workshop houses dedicated clean‑room mock‑up rigs, calibrated digital manometers, and helium leak detectors. Every custom aluminum alloy frame clean room window undergoes a battery of tests before our packing team even touches it.
Air‑Tightness & Pressure Differential Testing per EN 1026
How do we test the air‑tightness of clean room windows? Each assembled unit is mounted on our pressure‑differential test bench and subjected to a pneumatic test according to EN 1026 method. Our technicians record air leakage rates at multiple pressure steps, typically up to 600 Pa, and compare them to the specification you require. If a window doesn’t meet the projected limit, it is reworked and retested—never shipped as‑is. The final test report, with date, serial number, and measured leakage values, stays on file for your records.
Light‑Integrity & Visual Inspection Protocols
Beyond mechanical performance, every glazing seal is verified under 2000‑lux back‑lighting. Our QC team inspects each welded corner, gasket joint, and glazing bead for even the slightest discontinuity. We also perform a 100% visual check on anodized or powder‑coated surfaces for pits, scratches, or contaminant inclusions—flaws that could become particle traps in service. This hands‑on, in‑house inspection is something we can do consistently because we own the spraying and assembly sheds; no outsourced step weakens our control.
Our Quality Control Flow – From Raw Aluminium Extrusion to Clean‑Room‑Ready Window
What happens before that final test? Our QC flow is embedded in manufacturing itself, not tacked on at the end. With our self‑built aluminium processing workshops and integrated wood/metal spray booths, we control every transformation of the material.
Extrusion Inspection & Surface Preparation
We start with 6063‑T5 aluminium alloy extrusions sourced to a controlled specification. Incoming material is verified dimensionally with go/no‑go gauges and a spectrometer check for alloy composition. Our surface preparation line chemically cleans and etches the profiles before they enter our anodizing or powder coating booths, eliminating any chance of cross‑contamination by shop dust or oils. The coated profiles then move directly—within the same building—to a dust‑controlled assembly area.
Clean Assembly & Sealing Under Filtered Air
The assembly environment matters. Our clean‑room window assembly bay operates under positive‑pressure filtered air; assemblers wear cleanroom garments and gloves. Sealants are applied with positive‑displacement dispensing guns that eliminate air voids, and every glazing unit is carefully lowered into place using suction lifters to avoid fingerprints on the glass. This step is critical, and it’s a direct benefit of us owning the entire flow: nobody from an outside factory compromises the cleanliness.
Final QA & Packing for Clean Shipping
Before packing, each window receives a certificate of conformity that links the serial number to the production batch, coating lot, and test results. The unit is then individually wrapped in anti‑static polyethylene, foam‑edged, and placed in a rigid crate. Where specified, we add vacuum‑formed protective layers. You may ask, “Do you provide after‑sales support if a window is damaged during shipping?” Absolutely. We offer a full shipping‑damage after‑sales guarantee, so if a carrier mishandles a crate, our team quickly arranges replacement or repair.
Compliance Statements, Certification Bodies, and Annual Recertification
For many project managers, the initial certificate is just the start; you need confidence that our certifications remain current. Our ISO 9001:2015 registration is subject to annual surveillance by an accredited certification body, and we have never failed a recertification audit. We are happy to share a copy of the current certificate along with the auditor’s report summary upon request.
Notified Bodies & Test Reports We Routinely Provide
Our type‑testing is validated by internationally recognized partners such as TÜV, SGS, or Intertek, depending on the standard and project region. When we ship your aluminum alloy frame clean room windows, the documentation package includes the notified body’s type‑test summary, our own in‑house test data, and a declaration that the production lots are identical to the tested sample. This paper trail satisfies both cleanroom commissioning teams and building inspectors.
Yearly Audit Information & Recertification Process
The annual surveillance audit reviews our production records, calibration logs, and management review minutes. We keep the recertification timeline visible and share it as part of our compliance statements. If your project’s validation plan requires a fresh DoP, our design team prepares an updated one with each shipment, referencing the current certificate and test report batch.
Download Our Clean Room Window Certificates & Request a Custom Quote
You don’t have to wait weeks to see documentation. Because our independent design team and engineering support function in‑house, we can supply a digital certificate pack—covering ISO 9001, CE DoP, material certifications, and available test reports—within one business day of your request.
What is your minimum order quantity (MOQ) for custom cleanroom windows?
We support flexible MOQ for projects of any scale, from a single prototype to bulk supply for an entire facility. Our OEM/ODM service adapts to your needs; simply Contact Our Team with your specifications, and we’ll propose a commercial solution that fits.
How soon can you deliver custom aluminum alloy clean room windows?
With our self‑built aluminium workshop and integrated finishing, typical lead times are short. You’ll receive a confirmed delivery schedule in your formal quotation—usually far quicker than suppliers who outsource their coating and assembly.
Instant Certificate Package Access
Send Inquiry now and tell us which certificates you need. Our project consultants will reply with the certificate PDFs, CAD layout drawings, and a tailored performance data sheet within 24 hours.
References
[1] ISO 14644‑1:2015 – Cleanrooms and associated controlled environments – Part 1: Classification of air cleanliness by particle concentration. International Organization for Standardization. https://www.iso.org/standard/53394.html
[2] EN 14351‑1:2006+A2:2016 – Windows and doors – Product standard, performance characteristics. European Committee for Standardization. https://standards.cencenelec.eu/dyn/www/f?p=205:110:0::::FSP_PROJECT:60904&cs=1137482620