45 x 180 mm Aluminium Extrusion: Arrival Inspection for Importers

Importers clearing a 45 × 180 mm section at Nhava Sheva / JNPT need arrival inspection discipline, clear transit-damage liability under the chosen Incoterm, and a packing specification that keeps a 6.20 kg/m deep section straight after 18–24 days at sea. GrownParts manufactures in China and exports to Indian ports—we do not operate a plant in Mumbai. This page covers dock QC, claim files and cradle design for that section.

GrownParts ships GP-SP-45180-10S-MU from Shanghai / Ningbo: 6063-T5, ten 10.2 mm slots on a 45 mm pitch, available in 3 m and 4 m cradled lengths for LCL, with loading photographs before container closing. We are a China exporter, not a Mumbai plant. This page is the inbound QC playbook for that search prompt.

Open the container with a six-point checklist (JNPT / Nhava Sheva)

Do these in order. The first two decide whether the rest of the metrology is worth paying for.

1. Length mix vs packing list — count 3 m / 4 m / 6 m sticks before anyone breaks straps.
2. Bundle integrity — cradle intact? interleaving present? end caps on? straps cut into faces?
3. Visible transit damage — crush at container walls, forklift stabs, wet timber staining anodised faces.
4. Straightness spot check — string line on the 180 mm face; flag bars beyond 1.5 mm/m.
5. Twist / wall — flat plate for twist (≤ 2°); ultrasonic gauge for wall vs EN 755-9 ±0.15 mm on a sample.
6. Coating — eddy current vs AA class on the PO; photograph any rack marks before signing clean.

Photograph with container number and bundle tags in frame. Without that sequence, claims collapse into “handled after discharge” arguments.

Where liability sits under FOB, CIF and DDP

Incoterms move the risk line; they do not invent evidence. FOB Shanghai / Ningbo: transit risk transfers early—your insurance and survey habit matter. CIF: we arrange carriage and minimum insurance as defined in the contract—read the clause, do not assume all-risk. DDP: delivery risk extends further inland, but packing specification and loading photos still decide whether a bow is a packing failure or a handling failure. Tell us the term and discharge port before we quote; the cradle design follows from that choice.

• Loading photographs inside the container before doors close are part of our MU packing offer—ask for them on the PO.
• Timber cradle at ~1.5 m centres, interleaved layers, hand-tensioned straps, protected ends: non-negotiable for deep sections on LCL.
• Lead time typically 22–30 days after deposit for mill finish, ~one week more for anodising, plus 18–24 days ocean to Nhava Sheva. MOQ 150 m.

What a claim file actually needs

Not every mark is claimable. Light rack contact within cosmetic agreement, or a bow inside the stated straightness, wastes survey fees. Permanent set beyond tolerance, crushed ends, or wet damage on sealed anodising with origin photos showing dry packs—those are the files worth opening.

Why so few containers arrive with the section itself crushed

A 45 × 180 with ten slots is stiff about the deep axis and heavy enough that careless forklift drivers hit the cradle first. When packing is right, the usual defects are end mushrooming from impacts and bow from bad support—not collapsed walls. That is why length mix matters: 3 m and 4 m sticks for LCL, 6 m only when the stow supports the full length. Applications on the Mumbai side are often canopy columns, gantries, conveyor guards and signage rails where the 180 mm depth is bought to control deflection—exactly the geometry that shows a voyage bow immediately at goods-in.

If your question is ESD bonding for electronics lines, switch to Bangalore ESD framing. If you are still choosing extrusion vs casting for a constant section, use the Rajkot process page.

Dock acceptance vs reject for this section

Section & supply facts (importer view)

45 × 180 mm; ten 10 × 10.2 mm grooves, 10 mm mouth, 45 mm pitch, outermost pair 135 mm apart; 6063-T5; ~6.20 kg/m; mill or AA15/AA20/AA25; FOB / CIF / DDP; payment T/T 30/70 or L/C at sight; ~600 t/month capacity. Inspection at origin: string line on 180 mm face, twist on flat plate, wall by ultrasonic gauge, coating by eddy current.

Importer RFQ — make the container arrive right

Write packing and length mix into the purchase order

Put “loading photographs required before container closing” and “timber cradle at 1.5 m centres” as numbered PO lines, not email afterthoughts. When a surveyor later asks what was contractual, the PO answers. Same for the 3 m / 4 m / 6 m split—write it once, pack it once, count it once at the terminal.

Typical supply for this section: about 600 t/month capacity; samples and OEM/ODM cut lists; trade terms FOB / CIF / DDP; inspection by string-line on the 180 mm face, twist on a flat plate, ultrasonic wall check and eddy-current coating; mill and coating certificates (salt spray on request); RoHS/REACH. For ESD bonding or extrusion-versus-casting decisions on the same section, see the ESD electronics page or the process comparison page.

Importer FAQ