The supplier will not name the foundry. What should I do before approving a sample?

Ask whether the production site can be disclosed under confidentiality terms. If it cannot, request order-linked evidence identifying the route, tooling and subcontracted operations as far as the supplier will document them. Record what remains unverifiable, and do not treat the sample as proof that an unidentified plant made it.

The dimensions pass, but the material certificate is for another heat. Can I accept the lot?

Keep the dimensional result and material evidence as separate review items. Request the certificate or batch record specified in the purchase order for the lot under review, and refer the gap to the assigned disposition authority. Passing dimensions alone does not resolve an unlinked material record.

The carton artwork changed after packaging evaluation. Does the package need another test?

Compare the packaging revisions. If only artwork changed and the physical insert, closure, dimensions and protection remain the same, document that comparison and verify current carton and label references. If the physical structure or casting contact points changed, reassess the affected conditions with the revised sealed package.

Casting Supplier Qualification: Samples and Acceptance

Compare quotes against one casting scope

A low casting price is meaningful only when the compared offers cover the same part and operations. Issue one drawing revision, material designation, finish reference, intended use and quantity to every candidate. Ask for separate prices for tooling, casting, machining, finishing, inspection, retail packaging and export cartons. Put lead time, minimum quantity, exclusions, currency and quote validity beside the prices. An operation omitted from one offer is a scope difference, not a saving.

Then map who performs each operation. Identify the foundry, machining and finishing sites, tooling owner and person allowed to approve a route change. If a trader or sourcing agent is involved, request the proposed sites and subcontractors in writing. The U.S. International Trade Administration guide says an introduction to a potential Chinese business partner through an intermediary can encourage business discussions. That is relationship context, not evidence that a named plant will produce the order. Confirm the production route separately before using a sample or quote to judge capability.

Compare the proposed process as well as the price. A change in casting method, machining sequence or finishing site may affect which characteristics a sample can demonstrate. List the operations included in the offer and identify any unresolved route before approval; otherwise, the buyer may accept evidence for a process the supplier does not intend to use.

Decide what the sample can prove

Record how the sample was made, which tooling it used and what finishing followed. A model machined from stock can help assess shape or a mating fit, but it cannot establish that a casting route will reproduce those results. Where the process or finish matters to acceptance, request a sample made through a representative route and state any differences from production tooling.

Compare the identified sample with the controlled drawing and acceptance schedule. Check the critical dimensions, functional features and finished condition, not only surfaces that are easy to measure. Tie the sample identification and drawing revision to the review so the result cannot later be mistaken for approval of a different version.

Material evidence has a separate job: it should identify the material batch or heat relevant to the sample or production lot under review. A certificate for a different batch, supplier or heat does not establish the material of the goods being considered. If the required evidence is missing, keep that question open even when dimensional checks pass.

For a hypothetical example, suppose the supplier changes the finishing site after sample approval. Identify the coating, appearance and fit characteristics that could be affected, then request evidence for those characteristics from the revised route. Earlier approvals remain useful only where their basis still applies.

Make acceptance measurable

Attach an acceptance schedule to the purchase order and cite the drawing revision. Specify critical dimensions and tolerances, material evidence, finish reference, functional checks, inspection scope and report format. This gives the supplier and inspector a shared basis for comparing production with the approved part instead of treating an unrecorded first sample as the standard.

Make visual criteria usable: identify visible faces, edges, coating coverage and viewing conditions. Photographs can help explain appearance, but they do not replace dimensional readings or material records. For any batch record, name the lot or heat it must cover. These details make a mismatch identifiable before it is confused with a completed inspection.

Inspection findings and disposition are different decisions. The inspector reports results; the person or organization assigned authority in the purchase order or service agreement decides whether a deviation is accepted and whether cargo may move. If an exception is accepted, identify the quantity and approver. A report, warehouse check or buyer request does not by itself grant authority to stop or release a shipment.

Test the casting in its actual packaging

Evaluate a sample packed with the intended insert, wrap, carton and closure. Check whether projecting edges or coated faces touch the package, whether the part shifts, and whether pressure concentrates on a vulnerable feature. After any agreed handling or drop test, inspect both casting and packaging. A view of the open carton helps explain the layout but cannot show every contact point during movement.

UPS packaging guidance identifies inflatable packaging as void fill for lightweight items without sharp corners or edges. A casting with projecting edges needs a separate assessment: an edge may rub or press through the carton. Consider a fitted insert, corrugated liner or an outer box based on the packed configuration and the protection required.

UPS also describes a two-box method for sharp or fragile goods, with cushioning between the inner and outer boxes. That is a carrier packing method, not a finding that every casting needs double boxing. Use it as a candidate when the part is sharp or fragile, then check whether the inner restraint prevents movement and protects the actual finish.

FedEx says Packaging Lab experts can test a package for free if the customer has a FedEx account. Check eligibility and the assessment scope before submitting the intended configuration. Record what was tested; a test result applies to the conditions assessed and does not prove foundry capability or guarantee every transport route.

Quote the sealed configuration

Measure and weigh a finished, sealed package, including the casting, insert and closure. Identify its packaging version in the quote request. If cartons differ, list each configuration and quantity rather than applying one sample’s dimensions to the full shipment. A revised carton can change restraint, contact points and the space the shipment occupies, so recheck protection if the revision changes the physical package.

UPS gives the parcel formula for dimensional weight as length multiplied by width and height, divided by a divisor. UPS explains this calculation for its parcel services, including that the divisor depends on rate type. Use the selected provider’s rules for the shipment being quoted; do not assume a parcel formula applies to ocean freight or another carrier. Send sealed dimensions and scale weight together so a rate comparison uses the same package data.

Reconcile accepted castings at handoff

Before pickup, compare the accepted drawing revision, SKU, quantity and carton contents with the packed configuration. Keep rework and unresolved pieces separate from accepted stock, and investigate any carton-reference mismatch against the current shipment file. A mismatch weakens the link between the inspected goods and the cartons dispatched.

The origin release service description covers checking quantity, packaging and labels against an agreed scope, recording discrepancies and releasing cargo after exceptions are addressed. It describes that service workflow; it does not authorize engineering deviation acceptance. Carry accepted SKU and carton references into the US FBA receiving plan so supplier, shipment and receiving records can be connected. Supplier acceptance, delivery and fulfillment receiving are separate outcomes. Escalate a release or movement question to the party assigned authority in the order, booking or service agreement.

Qualify a Casting Supplier: Samples, Acceptance and Packed Goods