Original catalogue and photograph review; custom foundry tooling, no independent tool or casting trial.
Zhongfa final-drive housing cold-core box
Original catalogue example titled 主减壳冷芯盒模具: a custom cold-core box for a final-drive housing casting. No model, dimensions, material grade or specific machine fit is established.
A core-making tool, not a housing for installation
Use the original Chinese item title to identify the enquiry.
The entry is titled 主减壳冷芯盒模具, a final-drive housing cold-core box. Its original photographs show opened metal tooling with shaped cavities and locating/fastening features. [1] The photograph is useful for identifying a catalogue example; it does not establish a finished casting, a replacement housing or fit to a construction-machine model.
The catalogue establishes
Supplier, item family and tooling photographs. It separates this core box from static-pressure housing patterns elsewhere in the catalogue. [2]
Your order must establish
Part/tool drawing numbers, revisions, alloy and process, machine interface, included tooling pieces and acceptance. There is no reviewed stock model or dimensional sheet.
The listing gives enquiry pricing. Its three-day dispatch wording does not establish a delivery schedule for a newly engineered core box. Obtain a specific offer covering design, manufacture, trial and alterations.
Do not give one file three different jobs
Separate finished-part, casting and tool definitions.
| Input | Question to settle |
|---|---|
| Finished-part drawing | Which final interfaces, bores and faces must meet the component design? Who owns that design? |
| As-cast drawing | Which surfaces remain cast, which are machined, and where are the agreed datums and allowances? |
| Core definition | Which internal geometry and location must the core produce? Identify core setting and handling requirements. |
| Tool drawing | Who releases the cavity, splits, inserts, mounting and proposed process compensation? |
ISO 8062-3’s public abstract covers casting tolerances and machining allowances with indicated dimensions, rather than an undimensioned CAD model alone. [3] Select and agree an applicable acceptance basis with the foundry; neither the item photo nor this page supplies a tolerance grade.
If you have an existing casting but no controlled drawing, describe whether it is a new design, a replacement tool or a process transfer. Agree measurement and drawing approval before cutting cavities. A worn casting can be evidence for discussion without being the master for every dimension.
Make the receiving machine part of the specification
A familiar cavity shape says little about the mounting interface.
Supply the receiving core-making machine’s model and controlled tooling-interface drawing. Ask the foundry and toolmaker to agree the available envelope, plate mounting, opening direction/stroke and the required core-production arrangement. None of these values can be measured reliably from the original photographs.
Process connections
Record the sand/binder process and any required shooting, gassing, venting or extraction interfaces. Ask the offer to identify what is incorporated in the box and what the receiving machine must provide.
Handling and service
Agree opening, core release, lifting/handling and access for cleaning or replacing inserts. Request the supplied drawing and instructions, together with defined replaceable parts.
These are design-review questions, not claims that every pictured feature is present or that a specific core-shooter is compatible. For a repeat tool, retain the previous approved machine interface and identify any changes rather than accepting an outline-only copy.
Choose the approval that releases each stage
Keep a tool report, a core trial and a casting result distinct.
- Before manufacture: approve the tooling package and list any exceptions to the submitted drawing or scope.
- At tool inspection: identify the completed tool, revision and agreed interface/assembly checks. Record included parts.
- At the core trial: identify the machine, trial inputs and core results. Agree who evaluates the geometry, release and handling.
- At the casting trial: record sample identity and the agreed casting and machining examinations. Allocate correction responsibility.
- For repetition: retain the approved tool/casting revisions, trial records and any authorized alterations.
SFSA’s purchasing guidance distinguishes tooling services and current drawings, and calls for explicit sample inspection requirements. [4] It concerns steel-casting procurement; it does not certify this tool or supply a trial recipe for an unspecified alloy.
Ask for separate prices and dates for tool design, tooling, trial support and agreed corrections. Decide ownership, storage, collection, design-file handover and spare-insert scope. A photographed tool does not establish a promised life in cycles or included finished castings.
Prepare a custom core-box enquiry
Start with the part and the receiving foundry.
Sources & review
- Zhongfa original housing cold-core-box listing ↗
Chinese title and original photographs. No model/drawing or dimensions; price is by enquiry.
2026-10-11 - Zhongfa original tooling catalogue ↗
Distinguishes housing core box, static-pressure patterns, sand cores and core-making equipment.
2026-10-11 - ISO 8062-3:2023 public abstract ↗
Casting tolerance/allowance scope only; no paid tolerance tables read, no supplier compliance claim.
2026-10-11 - SFSA original purchasing guidance ↗
Public web retrieval of tooling/drawing/order responsibilities, not supplier endorsement.
2026-10-11
Specifications come from the manufacturer’s published information and the sources above; buying advice is written by CivilEquip with AI assistance. Ask the manufacturer to confirm the data for your configuration. Editorial policy · Report a correction.