A useful injection mold quotation needs more than a picture and target price. The supplier must understand the part geometry, material, quality expectations, production volume, mold scope, and delivery requirements. Missing information forces assumptions, and different assumptions make quotations difficult to compare.
Product files
Provide a 3D model, preferably a usable solid format such as STEP, plus a 2D drawing for dimensions, tolerances, notes, and inspection points. If only a sample or concept exists, state that clearly. Photos help explain use but normally cannot replace complete geometry.
Identify the revision level. Sending updated files without revision control creates avoidable risk.
Part function and application
Explain how the part works, what it contacts, how it is assembled, and the service environment. Note load, impact, temperature, chemicals, outdoor exposure, expected life, and appearance surfaces where relevant.
This information supports material and design review. It also helps distinguish critical features from noncritical ones.
Material and appearance
State the required resin grade when confirmed, or provide functional requirements when material selection remains open. Include color, texture, gloss, visible gate restrictions, weld-line concerns, printing, labels, inserts, or secondary operations.
Do not request a material substitution without reviewing its effect on shrinkage, strength, temperature, finish, and compliance obligations.
Quantity and production plan
Provide expected order quantity, annual or program volume if known, sample quantity, and anticipated production life. These inputs influence cavity count, mold construction, automation considerations, and the balance between tooling investment and cycle economics.
Avoid presenting an unrealistic forecast merely to obtain a lower quotation. A realistic range supports a more appropriate mold proposal.
Mold scope
Clarify requested cavity count, mold ownership expectations, preferred mold standard if applicable, insert and slider requirements, hot or cold runner preference if defined, spare parts, sampling stages, maintenance expectations, and whether production will occur at the mold maker or elsewhere.
If the supplier should recommend the mold approach, say so and provide the business requirements behind the decision.
Quality and validation
Identify critical dimensions, assembly checks, appearance criteria, functional tests, measurement reports, material documents, and sample approval process required by the project. Do not add standards that do not apply to the product.
Commercial and logistics details
Include target timing, destination, packing needs, incoterm expectations, currency, and whether the quotation should separate mold, samples, parts, secondary operations, and shipping.
RFQ checklist
- Controlled 3D and 2D files
- Product use and environment
- Material, color, and appearance
- Critical dimensions and quality plan
- Quantity and forecast
- Mold scope and ownership
- Sample and approval requirements
- Packing, destination, and timing
A quotation based on clear inputs is easier to evaluate and provides a stronger foundation for design review and mold development.