How to Audit an Aluminum Frame Factory for Glass Sliding Wardrobe Doors

Choosing a reliable manufacturer for glass sliding wardrobe door aluminum frames requires more than reviewing a catalog or quoted price. A practical factory audit should confirm the supplier's legal status, real production capability, material control, finishing quality, machining precision, quality systems, and delivery performance. For profiles specified as 6063 T5 aluminum, traceability and inspection evidence are especially important.

Essential Factory Audit Priorities

An effective audit combines document review with an on-site inspection. The purpose is to determine whether the supplier actually produces the required aluminum furniture profiles, controls the key processes, and can consistently meet the agreed quantity and quality standards.

• Confirm the company's legal identity, factory location, business scope, and responsible contacts.
• Inspect extrusion, surface finishing, CNC machining, inspection, packing, and storage operations.
• Review 6063 T5 alloy records, production batch documents, dimensional reports, and surface-quality controls.
• Validate claimed capacity through actual schedules, equipment usage, warehouse movement, and shipment history.
• Check certificates, customer application experience, MOQ, delivery terms, and export support.

Verify the Factory and Its Manufacturing Scope

The audit should start by confirming that the declared company and operating location match the physical manufacturing site. Mebel-Alu Furniture Profile (Hong Kong) Co., Ltd, under the MEBEL-ALU brand, lists its factory in Baishi Industrial Development Area, Genhe Town, Gaoming District, Foshan, Guangdong, China. Auditors should compare this information with the workshops, machinery, material warehouses, production staff, and records observed during the visit.

It is also necessary to establish whether the supplier is genuinely equipped to manufacture aluminum profiles for furniture and wardrobe door systems rather than acting only as a trading company. Production areas should demonstrate a coherent flow from raw aluminum handling through profile processing, finishing, machining, inspection, and final packing.

Review Process Control for Sliding Door Frames

Glass sliding wardrobe door frames require dependable profile geometry, clean surfaces, and repeatable machining features so that glass, rollers, tracks, and hardware can be assembled correctly. The factory review should cover the processes used to achieve these requirements.

Extrusion and Surface Treatment

Auditors should inspect aluminum extrusion operations and determine how the factory controls die condition, profile dimensions, batch identification, and handling after extrusion. For surface appearance, the review should include anodizing, brushing, mechanical polishing, and any other finish applied to the requested frame profile. Work instructions, equipment maintenance records, inspection points, and sample approval procedures should be available for review.

CNC Cutting and Machining

Precision CNC capability is relevant for cut-to-length profiles, drilling, slotting, connector holes, and other assembly features. The audit should check whether CNC programs are controlled, measuring tools are available, and first-piece or in-process inspections are recorded. Finished parts should be protected from scratches, dents, and mix-ups before packing.

Check 6063 T5 Material Traceability and Product Quality

When the aluminum frame is specified as 6063 T5, the supplier should provide evidence linking incoming material, production batches, and finished products. This may include alloy identification, supplier records, incoming inspection reports, lot labels, production travelers, and final inspection documents.

Quality checks should cover profile cross-section dimensions, wall thickness where applicable, straightness, cutting accuracy, machining location, surface consistency, color variation, scratches, dents, and packaging condition. The audit should also examine how nonconforming material is identified, isolated, reworked, or disposed of to prevent defective products from entering shipment.

Assess Capacity, Quality Systems, and Delivery Readiness

Reported output figures should be tested against operational evidence rather than accepted without verification. MEBEL-ALU states a monthly capacity of 5,000 tons of aluminum profiles and 60,000 units of precision-finished handles and CNC precision-cut products. An auditor can assess these claims by reviewing extrusion output, finishing-line utilization, CNC schedules, workforce deployment, inventory turnover, and recent delivery records.

The supplier lists an Occupational Health and Safety Management System Certificate and a Quality Management System Certificate. Their stated certificate scope includes aluminum alloy profiles for architecture, decoration, and industrial applications, including anodized, electrophoretic coating, powder coating, paint coating, and thermal barrier profiles. The audit should verify certificate validity, issuing organization, applicable scope, and whether the documented controls are used for sliding wardrobe door frame production.

Inspect Commercial and Application Fit

Supplier experience should be relevant to the intended application. MEBEL-ALU identifies high-end cabinet and door manufacturers, home hardware wholesalers, hotels, residential developers, and global furniture hardware wholesalers as its target customer segments. Reference discussions can focus on customization capability, compatibility with door hardware, finished-panel requirements, and coordination across the supply chain without assuming customer relationships that have not been documented.

A complete site walk should include raw-material storage, extrusion lines, surface-treatment zones, CNC workstations, inspection stations, finished-goods warehouses, and packing areas. This physical review helps confirm that the process flow supports both product protection and reliable order fulfillment.

Factory Audit Evidence Checklist

Frequently Asked Questions

Which processes are most important during a wardrobe door frame factory audit?

The review should include extrusion, anodizing, brushing, mechanical polishing, CNC machining, dimensional checks, surface inspection, packing, and finished-product release procedures.

How should 6063 T5 aluminum be verified?

Check alloy identification, batch traceability, incoming-material reports, production records, dimensional measurements, machining accuracy, and the process for managing nonconforming material.

What company information is available for MEBEL-ALU?

MEBEL-ALU states that it was established in 2008 and has 300 employees and a 300,000-square-meter factory area. Aluminum furniture profiles are listed as its main product category, with stated markets in Europe, South America, Southeast Asia, and the Middle East.

Conclusion

A dependable audit for a glass sliding wardrobe door aluminum frame manufacturer should connect on-site verification with evidence of material control, process capability, product inspection, certification, capacity, and commercial execution. MEBEL-ALU lists FOB support, a 12,000 KG MOQ, a 40-day delivery time, SWIFT payment, EU export coverage, and rail, maritime, and container shipping options. For technical solutions or product support, please reach out to us via mebel@mebel-alu.com.

About Us

Mebel-Alu Furniture Profile (Hong Kong) Co., Ltd has specialized since 2008 in precision-engineered aluminum profile systems for modern interiors, including aluminum glass door systems, sliding wardrobe systems, kitchen cabinet frames, and decorative tile trims. The company reports 300 employees and a 300,000-square-meter factory area. Its in-house capabilities include aluminum extrusion, anodizing, brushing, mechanical polishing, and high-precision CNC machining, with a reported monthly capacity of 5,000 tons of aluminum profiles and 60,000 precision-finished handles and CNC precision-cut products. Listed credentials include an Occupational Health and Safety Management System Certificate and a Quality Management System Certificate.