How to Review a Die Casting RFQ Before Tooling Starts

2026-06-17 09:57:45

A die casting RFQ is most useful when it lets the supplier understand the real part, not just the part name. Missing details usually lead to repeated questions, inaccurate pricing or tooling changes later.

RFQ information that changes the quotation

Common RFQ problems

The most common issue is that buyers send a 3D file without marked critical dimensions. A 3D file is useful, but 2D notes still matter for tolerances, threads, surface finish and no-coating areas.

Suggested next step

For new tooling projects, review mold design and tooling before confirming the order. Product example: custom aluminum die casting parts.

Short FAQ

Can a sample replace drawings?
A sample helps, but drawings are still recommended for tolerance and repeat production.

Should surface finish be quoted separately?
Yes. Painting, powder coating, plating and machining can change the total cost significantly.

RFQ quality determines quotation quality

When the RFQ is incomplete, suppliers are forced to make assumptions. Those assumptions may differ from the buyer's real requirement, which creates price gaps between suppliers and unexpected changes after the order.

Recommended RFQ package

• 3D model for geometry review
• 2D drawing for tolerances and notes
• material and surface finish requirement
• expected annual and batch quantity
• critical dimensions or assembly function
• packaging and inspection standard

Cost drivers buyers often miss

Engineering Detail: A Good RFQ Reduces Engineering Changes

The purpose of an RFQ is not only to get a price. It is to let the supplier understand the manufacturing route before cost is fixed. If the RFQ does not identify machined surfaces, coating requirements or inspection points, the first quotation may be incomplete. Later corrections then look like price increases, even though the real issue was missing information.

What Huabo Reviews Before Quoting

For a custom die casting project, Huabo reviews wall thickness, parting line direction, sliders, visible surfaces, machining datum, threads, surface treatment and expected batch quantity. This review helps decide whether the part needs a simple mold, side cores, inserts, CNC machining, painting or special inspection.