Our quality system is structured around three inspection stages: IQC, IPQC, and FQC. Inspection records, test data, and material certificates are maintained per lot and are available upon request.
Quality Workflow
Each commercial refrigeration glass door is checked through defined production steps, from insulated glass fabrication to final assembly and packaging. For OEM orders, inspection criteria can be adjusted according to customer drawings, cabinet structure, temperature range, and application requirements.
This process structure is used for cooler doors, freezer heated glass doors, walk-in door systems, and replacement door programs where fit, electrical configuration, and packing details must be confirmed before shipment.
Glass, aluminum profiles, gaskets, hardware, and electrical materials are checked against the confirmed order specification before release to production. Material condition, basic dimensions, and visible defects are reviewed to reduce mismatch risk in later assembly.
Key checks
Cutting, edging, hole processing, and tempering are reviewed against the approved drawing and product structure. Visual condition, edge finish, and processing consistency are checked before the glass proceeds to insulated unit production or heated door assembly.
Key checks
For cooler and freezer door applications, the IGU process is checked before release to frame assembly. Spacer preparation, desiccant filling, sealing condition, and general cleanliness are reviewed to support stable door performance in refrigerated environments.
Key checks
Aluminum frames, handles, hinges, gaskets, and related hardware are assembled according to the confirmed structure. Inspectors review alignment, fitting condition, and visible gaps to ensure the finished door matches the cabinet and application requirements.
Key checks
For heated glass doors and anti-condensation door systems, electrical components are checked before final packing. Wiring layout, continuity, connection points, and basic insulation condition are verified against the required voltage and cabinet application.
Key checks
Before shipment, the finished order is checked against the drawing, packing list, accessories, labels, and packaging requirements. Surface condition, quantity, and export packing method are reviewed according to the destination and transport arrangement.
Key checks
For OEM and project orders, documentation can be prepared according to agreed product models, inspection scope, and shipment batches.
Inspection area
Door size
Typical checks
width, height, diagonal tolerance
Inspection area
Glass unit
Typical checks
thickness, spacer alignment, sealing quality
Inspection area
Heater system
Typical checks
resistance, continuity, current draw
Inspection area
Frame assembly
Typical checks
squareness, surface finish, hardware fitting
Inspection area
Gasket
Typical checks
magnetic force, sealing contact, profile matching
Inspection area
Packaging
Typical checks
corner protection, crate strength, label accuracy
All incoming materials are held in quarantine and inspected before release to production. Inspection is performed per the approved incoming inspection standard for each material type.
Key production steps have defined inspection points. Operators and QC inspectors verify parameters during production. Records are maintained per lot or batch.
Every completed unit is inspected before packaging. Final inspection covers dimensional accuracy, functional performance, and cosmetic appearance.
Inspection records are retained for a minimum of 3 years. For OEM programs, record formats and delivery schedules can be agreed upon during project setup.
Available documents (upon request):
Non-conforming materials or products are segregated, documented, and dispositioned (rework, concession, or reject). Root cause analysis is performed for recurring issues. Corrective action records are available upon request for specific orders.
Available documents include RoHS conformity documents, CNAS-related test reports, and design patent certificates.
Certification and compliance documents may apply only to specific models, materials, components, or production batches. For OEM projects or regulated markets, please confirm the required standard, target country, product model, and testing scope before order confirmation.
Contact us to request quality documentation for a specific order, or to arrange a factory quality audit.
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