- Document Ref.
SSR-2026-HDG-07- Tariff / Scope
- SS-TECH (€790) / SS-PRE (€490)
- Issue / Revision
- Rev. 02 · 2026-11-02
- Classification
- SPECIMEN · NDA ANONYMIZED
HOT-DIP GALVANIZING (EN ISO 1461) & DRY-FIT TRIAL DOSSIER
Product Scope: 42 Tons Ringlock Scaffolding Standards/Ledgers (Ø48.3×3.2 mm S355JR) + Warehouse Mezzanine Walkways & Gratings
ILLUSTRATIVE CORPORATE SPECIMEN (ZERO CLIENT DATA DISCLOSED): Client names, factory identities, heat/certificate numbers and commercial figures in this specimen are fictionalized to protect strict B2B NDA confidentiality. Scoped commercial/visual engineering record — not an accredited laboratory test certificate or statutory structural sign-off.
01 · ASSIGNMENT REGISTER & EXECUTIVE GATE SUMMARY
Robotic MIG rosetta welds, Ø48.3 × 3.22 mm S355JRH tube wall thickness and EN ISO 1461 hot-dip zinc thickness (average 86 µm vs >=55/70 µm requirement) met buyer specification across 20 sampled standards and ledgers. Minor zinc ash/icicle build-up inside 3 wedge slots was fettled clean during the visit; full lot de-burring check required prior to strapping.
02 · SCOPED TECHNICAL OBSERVATIONS, MEASUREMENTS & COMPARISON MATRIX
| Ref. | Subsystem / Inspection Parameter | Buyer Specification / Benchmark | Recorded Field / Desk Evidence | Evidence Basis | Required Buyer / Supplier Gate Action |
|---|---|---|---|---|---|
CHK-01 |
Structural Tube Diameter, Wall Gauge & Steel Grade | EN 10219 Ø48.3 × 3.20 mm S355JRH (not 2.5–2.7 mm S235 domestic tube) | Sampled 12 uncoated tubes on saw line: OD 48.35 mm, wall 3.19–3.24 mm; 3.1 mill cert Heat #T-9104 confirmed S355JRH. | Observed / Verified | Compliant; tube wall thickness & grade verified. |
CHK-02 |
Robotic Rosetta & Wedge-Head Weld Geometry | Full twin-fillet robotic MIG weld @ 500 mm centers, zero undercut/spatter | 2-cell robotic welding station active; fillet throat uniform (3.5 mm); captive cast wedges seated flush. | Observed / Verified | Acceptable; retain WPS/welder records in handover file. |
CHK-03 |
EN ISO 1461 Hot-Dip Galvanizing Thickness (DFT) | Mean >= 70 µm (steel >=3 mm <6 mm), local min >= 55 µm | 40 magnetic readings across standards, ledgers & stair stringers averaged 86 µm (local min 68 µm, max 108 µm). | Observed / Verified | Exceeds EN ISO 1461 Table 3 minimum coating thickness. |
CHK-04 |
2-Bay Full-Height Dry-Fit Erection & Wedge Locking | Plumb spigot coupling, diagonal brace pin fit & walkway hook seating | Assembled 2×2.57 m bays + steel toe-boards + mezzanine grating panel on yard slab; diagonals locked smoothly. | Observed / Verified | 3 rosetta slots had minor HDG zinc icicles; filed clean on site. |
CHK-05 |
Mezzanine Electro-Forged Floor Grating & Stair Treads | 30×3 mm bearing bar, 33×33 mm mesh, anti-slip nosing, HDG finish | Bearing bar measured 30.1 × 2.98 mm; saddle-clip bolt packs bagged and tagged per mezzanine bay. | Observed / Verified | Ready for palletizing; confirm clip count +5% spare. |
CHK-06 |
Stackable Steel Transport Cradles & Bundle Strapping | Forklift-stackable galvanized steel stillages (<=1,200 kg/cradle) for 40' OT/trailer | Standards loaded in steel stillages with 32 mm steel bands; timber dunnage lacked visible IPPC HT mark on 2 skids. | Open / Hold Gate | Replace 2 unstamped timber skids with IPPC HT stamped dunnage before loading. |
Scoped B2B visual field verification, random dimensional spot-sampling and documentary cross-check.
Field gauges zero-checked prior to measurement; heat/batch IDs cross-referenced against presented 3.1 MTCs.
Advance or balance wire release remains conditional upon closing all Open / Hold items logged on Sheet 2.
SSR-2026-HDG-07 · Page 1 / 2
SSR-2026-HDG-07
Rev. 02 · 2026-11-02
Page 2 / 2
03 · CROSS-REFERENCED EVIDENCE & ANNEX REGISTER
TUBE-A1
Logged in Dossier
Wall thickness caliper photos prior to galvanizing kettle immersion.
HDG-B2
Logged in Dossier
Recorded micron distribution on tubes, rosettas, base jacks and gratings.
FIT-C3
Logged in Dossier
Assembled bay diagonal squareness, wedge seating and stair stringer fit-up.
PACK-D4
Logged in Dossier
Cradle gross weight tags and forklift stacking pocket verification.
04 · OPEN-ITEMS ACTION REGISTER BEFORE COMMERCIAL RELEASE
| Item ID | Open Technical / Commercial Point | Action Owner | Target Release Gate |
|---|---|---|---|
OI-01 |
Perform 100% hand-gauge pass on rosetta wedge slots after HDG bath to clear any solidified zinc droplets before bundling. | Factory QC Crew | Before Stillage Strapping |
OI-02 |
Swap 2 unstamped timber under-skids for IPPC ISPM-15 heat-treated skids. | Dispatch Warehouse | Before Trailer Arrival |
OI-03 |
Attach EN 12810/12811 certificate reference and EN ISO 1461 galvanizer declaration to shipping pack. | Supplier Export Desk | With Final Invoice |
05 · EVIDENCE CLASSIFICATION KEY & CORPORATE SCOPE GOVERNANCE
Directly witnessed, counted or measured on site/desk by SerSourcing within the agreed assignment window.
Recorded from supplier-submitted certificates, MTCs or drawings without assuming physical lot testing.
Verbal or written manufacturer statement recorded transparently; requires independent verification.
Unresolved technical or commercial hold item recommended for closure prior to stage payment/dispatch.
Governance & Independence Standard: Issued under buyer-representation tariff SS-2026-11-V2. Zero undisclosed supplier commission. Goods contracts, product warranties, accredited EN ISO/IEC 17025 lab testing and statutory engineering sign-off remain with the respective contracting parties and appointed specialists.
06 · DOCUMENT REVISION LOG & CONTROLLED DISTRIBUTION REGISTER
| Rev. | Date | Revision Status & QA Milestone | Authorized Distribution & Archive Retention |
|---|---|---|---|
Rev. 01 |
2026-10-30 | Initial field / desk observation log, dimensional check sheet & annex index. | Internal Engineering Desk QA Review (Maltepe HQ) |
Rev. 02 |
2026-11-02 | QA-verified corporate engineering dossier & executive gate recommendation. | Commissioning Buyer (1× Encrypted PDF + Annex ZIP) · 5-Yr NDA Archive |
07 · BUYER CONTRACT, PAYMENT & DISPATCH SAFEGUARD PROTOCOL
GATE-01
Proforma & Technical Specification Rider
Bind verified steel grade, coating mass, tolerances and export packing rules directly into the signed Proforma Invoice.
GATE-02
Lot-Specific Certificate & Export Pack
Verify batch-allocated EN 10204 3.1 MTC, CE DoP, packing list and draft A.TR/EUR.1 48h prior to balance wire.
GATE-03
Pre-Shipment & Loading Gate Witness
Confirm final piece count and dunnage via SS-PRE (€490) or SS-LOAD (€390) before high-security bolt seal closure.
GATE-04
Strict NDA & Zero-Commission Mandate
Issued exclusively for commissioning buyer internal governance; SerSourcing accepts zero supplier commission (0%).
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