Custom Die Casting Services — Aluminum & Zinc
Sendot Technology reviews drawing-defined die-casting projects for aluminum or zinc alloy parts. A project review connects the released CAD and 2D drawing with the material requirement, quantity scenario, tooling status, finish, critical dimensions and inspection needs before a quote is confirmed.
Direct answer
Die casting is evaluated when a buyer needs a repeatable route for a released metal part and is ready to review the related tooling, material, quantity, finish and inspection assumptions. It is not selected by quantity alone; a change to the part definition or acceptance plan can change the appropriate route.
What is die casting?
Die casting injects molten metal under high pressure into a hardened steel mold called a die. The metal solidifies quickly into a precise, repeatable net-shape part with good surface finish and thin walls, then the die opens and ejects it. Because the steel die is reusable for hundreds of thousands of shots, die casting delivers a very low cost per part at high volume. Learn the fundamentals in our die casting guide and high-pressure die casting overview.
Die casting processes
Cold-Chamber Die Casting
For high-melting-point metals like aluminum and magnesium. Molten metal is ladled into the chamber each cycle.
Hot-Chamber Die Casting
For low-melting-point metals like zinc. Faster cycle times for high-volume small parts.
Zinc versus aluminum: start with the project definition
Choose the material route from the buyer's approved requirement, not from a generic material ranking. State the part envelope, functional conditions, finish, critical features, mating interfaces and any material designation in the RFQ. If those inputs are still open, identify them as decisions to be reviewed rather than treating an early quote assumption as a final material approval.
For an adjacent post-cast feature review, see CNC machining; for coating or cosmetic requirements, see parts finishing.
Applications
- Automotive — housings, brackets, structural and powertrain components
- Electronics & telecom — heat sinks, enclosures, connectors, shielding
- Industrial & consumer — pump bodies, valve parts, hardware, fittings
See part examples in die casting parts and the trade-offs in advantages and disadvantages of die casting.
What to confirm before requesting a die-casting quote
- Controlled files: current CAD, 2D drawing, revision and relevant BOM or assembly context.
- Material decision: specified zinc or aluminum alloy, or the functional requirement that needs review.
- Tooling and quantity: current tooling status, immediate order quantity and forecast scenario.
- Functional features: draft, parting considerations, critical dimensions, secondary machining and mating interfaces.
- Finish and evidence: appearance, coating, inspection method and delivery records required by the order.
Supplier feedback can identify manufacturability questions. The buyer remains responsible for releasing the design, material and acceptance requirements.
Frequently asked questions
What should a zinc alloy die-casting RFQ include?
How should a buyer choose zinc versus aluminum alloy?
When should the process route be reviewed again?
Request a die-casting quote
Upload the controlled drawing with the alloy, quantity, tooling status, surface requirements, critical dimensions and inspection inputs. The project review separates manufacturing feedback from buyer design approval.