LadderCageCage Ladder Quality Control, Factory-Verified
Quality Control
5-stage cage ladder quality control — ISO 5817 C welding, HDG ISO 1461, records kept 10 years. Every order ships with its full inspection and material file.
QC Stages
MTC Verified
Visual Weld Inspection
Records Kept
The 5-Stage Process
Cage Ladder Quality Control – 5 Stages
From incoming plate to export packing, every cage ladder passes the same five gates — no shortcuts, no exceptions.
1. Incoming Material Inspection
MTC 3.1 verified 100% for Q235B, SS304 and SS316. No certificate, no release to the floor.
2. Cutting & Preparation
First-piece dimensional check on rung, hoop and stringer blanks.
3. Welding & Assembly
100% visual weld inspection to ISO 5817 Level C on every seam.
4. Surface Treatment
HDG ISO 1461 at 85–100 μm, or powder coat — thickness checked and logged.
5. Final Inspection
Pre-assembly, full dimensions, labeling, and ISPM 15 heat-treated export packing.
Every Gate Logged
QC records are filed by order number and kept for 10 years — traceable after delivery.
Welding Quality
Welding Quality – ISO 5817 Level C
Welds carry the load on a cage ladder. We weld to ISO 5817:2014 Level C with qualified welders and verified procedures.
- Welds accepted per ISO 5817 Level C with inspection records
A defined acceptance limit your inspector can verify
- 100% Visual Weld Inspection
Every seam inspected and logged by order
Coating Control
HDG Coating Control – ISO 1461
A cage ladder's life is decided by its coating. We hot-dip galvanize to ISO 1461:2022 and verify the result, not just claim it.
- HDG 85–100 μm measured per ISO 1461
Thickness report per order
- Coating Report Per Order
Thickness readings logged and included in the doc pack
Final Inspection
Final Inspection & Packaging
Before a cage ladder leaves the floor it is dry-fitted, dimension-checked and packed so it arrives the way it left.
- Pre-Assembly Dry Fit
Every section is trial-assembled before packing
- Full Dimension Check
Rung spacing, cage diameter and clearance verified to drawing
- ISPM 15 Export Packing
Heat-treated timber and steel-reinforced crates for sea freight
Docs With Every Order
Documents Included with Every Order
No chasing paperwork after delivery — every cage ladder ships with its full inspection and material file, free.
MTC 3.1
EN 10204 3.1 material certificate for Q235B / SS304 / SS316.
Weld Inspection Records
100% visual weld inspection records for the seams on your order.
Dimensional Report
Verified rung spacing, cage geometry and clearance values.
HDG Coating Report
Coating thickness readings per ISO 1461.
Declaration of Conformity
Order-level DoC to the relevant standard for your market.
Structural Calcs + Packing List
Engineer-signed calculations and ISPM 15 packing list.
QC Records & Factory Audit
QC Records & Factory Audit
QC records are kept for at least 10 years and are traceable by order number. Audit visits are welcome — book one through our factory team.
- Records Kept ≥10 Years
Traceable by order number, after delivery
- Audit Visits Welcome
See the process and the records yourself
Gate by Gate
The Five QC Gates — What, Evidence, Sign-Off
A gate is only real if three things exist: an action, an artifact and a named role that signs it. This table shows all three for every stage, so your QA department can map it against your own inspection and test plan.
| Gate | What Is Done | Evidence Produced | Sign-Off |
|---|---|---|---|
| 1. Incoming material | MTC 3.1 verified 100% against the order — no certificate, no release to the floor | EN 10204 3.1 mill certificate filed | Incoming inspector |
| 2. Cutting & preparation | First-piece 100% dimensional check on rung, hoop and stringer blanks | First-piece dimensional record | Machine operator + QC |
| 3. Welding & assembly | 100% visual weld inspection to ISO 5817 Level C | Weld inspection log per order | Welding supervisor |
| 4. Surface treatment | Hot-dip galvanizing thickness checked and logged per batch | Coating record — ISO 1461, 85–100 μm | HDG line QC |
| 5. Final inspection & packing | Trial assembly of every ladder, full dimensions, labeling, ISPM 15 export packing | QC file + loading photographs | QC engineer |
Ask About Our QC
Ask About Our QC
Want sample QC reports, weld records or to book an audit? Our QC team replies within 24 hours — audit visits welcome.
- Sample QC reports on request
- Full doc pack with every order
- Factory audits welcome
Make Quality Contractual, Not Conversational
Five QC Clauses to Write Into Any Ladder Purchase Order
"Good quality" is not a specification. These are the five clauses that make quality enforceable — copy them into your PO with any supplier, including us.
| Clause to Demand | Vague Version It Replaces | What It Makes Provable |
|---|---|---|
| Material per EN 10204 3.1, heat numbers on the MTC | "Prime steel with certificates" | the steel in your ladder matches the mill test that passed |
| Welds accepted per ISO 5817 class C | "proper welding by certified welders" | a defined acceptance limit your inspector can reject against |
| HDG coating 85–100 μm per ISO 1461, measured on parts | "hot-dip galvanized finish" | a corrosion budget with numbers, not a process claim |
| Trial assembly of every unit, photographed | "checked before shipping" | bolt alignment proven before the crate closes |
| QC and loading records retained 10 years | "documents available on request" | audit answers that outlive everyone's memory of the order |
Our five-stage QC already runs on exactly these clauses — stage by stage, evidence per gate. Put them in your PO and hold us to them.
Quality That Leaves a Paper Trail
What Five-Stage QC Gets You
Each stage exists because skipping it fails a specific, expensive test later. Five rows, five tests already passed.
| Feature | Advantage | Your Outcome |
|---|---|---|
| EN 10204 3.1 MTC | mill-certified Q235B / SS304 / SS316 per heat | material provenance your auditor accepts without argument |
| ISO 5817 class C weld gates | defined acceptance criteria, checked per order | weld quality is contractual, not decorative |
| ISO 1461 HDG at 85–100 μm | coating measured on actual parts | coating life proven by measurement, not promised by brochure |
| Per-ladder trial assembly | every unit bolted together before packing | site hours spent installing, never fitting |
| Records kept 10 years | QC file and loading photos archived per order | evidence on tap for insurers and auditors, years later |