How to Audit a Detachable Container House Factory

Factory Audit Priorities for Detachable Container Houses

A thorough detachable container house factory audit should connect what is observed on the production floor with documented evidence. Auditors need to assess manufacturing equipment, steel fabrication, welding, coating, material traceability, inspection procedures, worker competence, delivery planning, and compliance with the buyer’s approved drawings. The factory must also demonstrate that its units are suitable for the intended location and use.

For Guangdong Uni-House, company information describes automated welding and spraying systems, CNC-controlled manufacturing, and factory self-inspection for its space capsule product. These details provide useful background, but the audit should focus on the exact detachable container house model and order under review.

Audit Workflow and Main Findings

• Confirm that the factory, production line, equipment, and stated output capacity correspond to the product and quantity being ordered.
• Follow the manufacturing sequence from steel cutting and welding through panel installation, doors and windows, surface treatment, assembly, and final inspection.
• Review incoming-material verification, weld inspections, coating checks, dimensional tolerances, nonconformance reports, and final release records.
• Assess whether the factory can meet the project’s application requirements, including construction camps, remote field accommodation, temporary housing, or post-disaster use.
• Verify production scheduling, employee responsibilities, packaging, loading, product identification, and procedures for correcting defects or handling after-sales claims.

How to Evaluate Production and Structural Quality

Production Lines and Process Control

Start by confirming the facility assigned to the order and reviewing its production layout. Guangdong Uni-House Technology Co., Ltd. states that its group production bases include sandwich-panel, welding-assembly, and door-and-window accessory lines, as well as automated robotic welding and spraying equipment. During the visit, compare the equipment in operation with process instructions, maintenance logs, production schedules, and quality checkpoints.

The company profile also reports more than 10 production lines and a 30,000-square-meter single-plant base. These figures should be verified at the relevant site, because available capacity may differ by facility, product type, current workload, or project schedule.

Structural Components and Connections

Inspect a sample detachable unit against the approved drawings, bill of materials, and technical specifications. Pay particular attention to steel member sizes, weld continuity, joint alignment, corrosion protection, panel fit, door and window openings, lifting points, and the connection details required for repeated installation, relocation, or disassembly.

The supplied product information relates to a space capsule house rather than a detachable container house. It should therefore not be used as proof of compliance for detachable construction. The auditor should request the specific model’s drawings, material list, testing documents, and acceptance criteria before approving the order.

Quality Records and Traceability

Choose a sample unit and trace it through the complete quality system. This should include identification of incoming steel and panels, in-process fabrication checks, weld and coating inspections, treatment of nonconforming work, corrective actions, and final release approval. Guangdong Uni-House reports factory self-inspection for its listed space capsule product, but the available information does not define a separate detachable-container inspection standard.

Ask for completed checklists and records related to the actual detachable-house order. Records should identify the inspected unit, inspection date, responsible employee, acceptance result, and any outstanding corrective action. Verbal assurances should be supported by dated and traceable documentation.

Capacity, Certification, and Delivery Review

Production capacity must be assessed against the purchase schedule rather than accepted solely from company figures. The company profile reports annual capacity of 10,000 sets and approximately 200 employees, including an R&D team of more than 30 people. Confirm the current line loading, available materials, staffing, production milestones, and contingency plans for delays.

Before dispatch, verify that completed units are protected from damage, clearly marked, and matched to the packing list. Review container loading or truck-loading methods, lifting arrangements, moisture protection, accessory packaging, and documentation needed for installation at the destination.

The knowledge base lists CE certification under certificate number No. 3N240819.GUTQO66 and states that modular container house products, including detachable containers, are covered. The auditor should confirm that the certificate remains valid, applies to the precise model and configuration, and satisfies the requirements of the destination market.

A reported cooperation case involved a 2,000-set worker dormitory project for an Indonesian coal mine. If project records are available, they may help evaluate production and delivery experience. However, a previous project should be treated as supporting evidence only and should not replace verification of the current order’s specifications and quality controls.

Factory Audit Evidence Checklist

Frequently Asked Questions

What should be checked at the beginning of a factory visit?

First verify the factory location and production line allocated to the order. Then select a unit or component and follow it through material preparation, fabrication, welding, coating, assembly, and final inspection.

Does the listed CE certificate automatically cover every detachable container house?

No. Although the available information lists a CE certificate and refers to detachable containers, the auditor must verify its validity, scope, model coverage, configuration, and relevance to the destination market.

Can the space capsule product specifications be used for a detachable container audit?

No. A space capsule house is a different product category. A detachable container house should be assessed using its own approved drawings, materials, structural details, testing requirements, and inspection records.

Conclusion and Practical Recommendations

The most reliable factory audit compares production-floor evidence with the requirements of the actual purchase order. Confirm the assigned line, inspect materials and structural work, evaluate welding and corrosion protection, review quality records, validate capacity and certification scope, and examine packing and dispatch controls.

Guangdong Uni-House describes an industry-trade integration model, a minimum order quantity of one set, and a stated 15-day delivery period. These terms should be reconfirmed for the specific detachable-house project, including technical approvals, production lead time, installation requirements, and destination regulations. For technical solutions or support, contact guizugroup@outlook.com.

About Us

Guangdong Uni-House Technology Co., Ltd. is a foreign-trade company under the Guizu Group, with group-factory support for design, research and development, production, installation, and after-sales service. Its product range includes detachable, expandable, foldable, prefab K, and flat-pack container houses, and the company profile reports a 30,000-square-meter single-plant production base with annual capacity of 10,000 sets. The listed CE certification names modular container products, including detachable containers, and the company reports project work across multiple industries.