CKD End-of-Line Final Inspection Checklist: Visual & Functional

The last station on your CKD assembly line is the most important one. It is where every stove earns the right to leave your factory. A rigorous end-of-line inspection — combining visual checks with functional tests — is what separates a trustworthy local manufacturer from a risky one. Here is the checklist to build around.

Visual Inspection: The First Pass

Before any test, inspect the assembled stove with fresh eyes. Look for the common defects that reach customers if unchecked:

• Panel and body — scratches, dents, uneven gaps, misaligned parts.
• Burner assembly — caps and spreaders seated correctly, centered, and matched in finish.
• Controls and knobs — aligned, labeled, and turning smoothly without binding.
• Wiring and connections — no loose wires, no exposed conductors, connectors fully seated.
• Glass and hob plate — clean, crack-free, and properly sealed.

Functional Testing: The Safety Pass

After the visual check, run the functional tests — in this order, because safety comes first:

• Gas leak test — pressurize the gas system and confirm zero leaks. Non-negotiable on every single stove.
• Ignition test — every burner must spark and light reliably, on demand.
• Flame test — each burner burns with a stable, blue, even flame; no yellow tips, no lifting, no sputtering.
• Safety device test — confirm the thermocouple and flame-failure valve cut the gas correctly when the flame is extinguished.

Document Every Result

Record the outcome of each inspection against the stove's serial number. A completed checklist — tied to the serial — is your proof of quality and your first line of defense if a customer raises a complaint. It also feeds your traceability system and your first-pass yield metrics.

Build a Reliable Final Gate with THREEMI

THREEMI supplies complete CKD kits plus assembly guidance, and we advise on the end-of-line inspection process — the checklist, the test equipment, and the record-keeping. Put a rigorous final gate at the end of your line, and every stove you ship builds trust in your brand.

About THREEMI

THREEMI is the export brand of Shenzhen Sanmi Manufacturing Co., Ltd., a professional gas stove and kitchen appliance factory in Guangdong, China. With 400+ employees, a 20,000㎡ production facility, and an annual output of 3 million units, we serve wholesalers, distributors, brand owners, and e-commerce sellers in over 30 countries. Our factory is certified ISO9001, CCC, CE, UL, GS, ETL, NF, and SASO.

Start Your Local Assembly Line with THREEMI

We supply complete gas stove CKD (Complete Knock Down) kits, plus assembly guidance, worker training support, and equipment purchasing advice — so you can build a reliable local manufacturing operation. Contact us to plan your CKD program.

WhatsApp: +86 186 7003 0673
Email: logan@threemi.com
Website: www.threemi.com