Custom casting · Controlled drawing and delivered state
Construction-machinery water-glass casting
A custom construction-component example in Henao’s water-glass casting category. Its photograph is not a material, fit or load specification.
The custom drawing determines the component
The official entry is headed “工程机械水玻璃铸造” and classified as water-glass casting. It describes custom construction and general machinery components. [1] It does not publish a model-specific alloy, mass, permissible load, dimensioned drawing or machine fit for the pictured part.
Define function
Identify assembly purpose, mating parts, load/environment requirements and the responsible designer’s specification. An industry label cannot approve an excavator, loader or crane installation.
Define geometry
Supply approved drawing/revision, units, datums and feature-specific tolerances. Identify machined features separately from surfaces retained as cast. Match any CAD file to the same released definition.
The supplier generally lists carbon, alloy, stainless and wear-resistant steels. [2] Those options are not the selected part’s grade. State one material specification and condition; obtain the supplier’s feasibility response rather than deriving an alloy from appearance.
Leave visible boundaries between casting and machining
| Purchase state | Drawing must define | Who accepts the result? |
|---|---|---|
| Casting blank | As-cast dimensions/tolerances, condition and machining stock on selected surfaces. | Buyer or downstream machinist against the agreed blank specification. |
| Machined casting | Final datums, bores/faces, as-cast surfaces retained and machining allowances/routing. | Defined finished-feature inspection and material acceptance. |
| Finished component | Additional treatment, finish, cleaning/marking and complete delivered condition. | Final acceptance plan covering included operations. |
Ask the supplier to propose the part’s actual route and any subcontracted stages. “Water-glass” identifies a catalogue family; it does not establish which surfaces need machining or how much stock to leave. ISO’s publisher abstract addresses casting tolerances and machining allowances and excludes 3D models without indicated dimensions. [3] No generic tolerance grade or numerical stock allowance is assigned here.
A useful response to “direct assembly”
The source makes broad direct-fit, no-defect and durability claims. Ask which controlled dimensions, material condition and test records support your part. The reviewed page supplies no such part-specific evidence, so these phrases are not adopted as platform guarantees.
Ask for evidence tied to the component and heat
- Material definition
- Grade, governing specification and delivered condition
- Traceability
- Heat/lot identification through casting and machining
- Dimensional record
- Feature-numbered results against the approved revision
- Additional testing
- Only tests and acceptance criteria required by the order
Agree chemical/mechanical-property reporting and any heat-treatment or specified non-destructive testing records with their methods and sampling. Define who evaluates results. A company quality-system certificate does not replace a delivered-part report or prove an allowable structural load.
The manufacturer’s certificate review is recorded on the company page, including the date shown on its displayed document. Check the current qualification gap → No factory visit, destructive test or independently approved component design is claimed by CivilEquip.
Use sample approval to control the repeat order
- Agree tooling before startingSpecify mould/pattern/fixture scope, ownership, quoted costs, revision control and first-article schedule. The source’s broad “no additional mould cost” statement is not treated as a contractual tooling policy.
- Review an identified first articleRequire the agreed records and document approved deviations, if any. A photograph alone does not verify material or internal/controlled dimensions.
- Release repeat production deliberatelyLink approval to the drawing, route, alloy/condition and supplied state. Define change notification/reapproval and lot/package labels.
Can the pictured part be ordered as a universal replacement?
No model fit, original-equipment reference or controlled drawing is established. Submit the intended part definition and obtain written interface confirmation.
Does the page prove zero casting defects?
It gives broad supplier claims without a part-specific test report. Define the actual defect/inspection criteria and evidence for the purchase.
Will CNC machining always be included?
Henao offers machining, but inclusion depends on the quotation’s delivered state and operations. List casting, machining and finish separately.
Prepare the component definition
Sources & review
- Henao construction-machinery water-glass casting ↗
Family entry dated 12 July 2022, category and broad custom-part claims. No model-specific grade, mass, load or dimensional table.
2026-10-11 - Henao company and manufacturing offer ↗
Material families and casting/machining scope, not the illustrated part’s selected alloy or route.
2026-10-11 - ISO 8062-3:2023 publisher scope ↗
Casting-tolerance and machining-allowance scope and undimensioned CAD limitation. No achievable grade or supplier conformity inferred.
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.