Official item and photograph review; no part measurement, load test or foundry trial.
Yingda lift-part sand-tooling example
A sand-tooling catalogue entry titled 升降机, illustrated by a housing-shaped rough casting. It is a custom-project reference, not a complete lift or a specified replacement component.
The name says “lift”; the evidence says much less
Do not turn a catalogue label into a machine specification.
The original entry appears under 翻砂模具, sand-casting tooling, with the title 升降机. The image shows a rough housing-shaped casting with a central opening and a rectangular mounting outline. [1] There is no scale or drawing, and the site does not explain the pictured part’s function.
A useful enquiry reference
Use the item URL and Chinese title to ask whether Yingda can develop tooling for your drawing. The entry discusses pattern materials and custom casting work.
Not established by this listing
Lift model, load rating, dimensions, alloy, bore fit, mounting-hole positions, certification or a stock replacement part. No exact compatibility should be inferred.
If you need a finished lift, this entry is insufficient for that purchase. If you need a replacement component, provide the equipment identity and controlled component requirements; the casting’s visual resemblance is not a fit check.
Ask what the quotation actually delivers
Tooling and parts require separate acceptance.
| Requested supply | Define before accepting |
|---|---|
| Pattern/tooling only | Pattern set, any core boxes, mounting plates, drawing revision and receiving moulding process. |
| Tooling plus trial castings | Responsible foundry, alloy, sample quantity, trial conditions and inspection report. |
| Machined components | Machining owner, final drawing, functional interfaces and completed-part acceptance. |
Yingda’s introduction states tooling manufacture and process development. [2] It does not establish that the photographed casting includes a finished-component supply contract. Have the offer identify every production party and any outsourced operation.
For a replacement, submit the previous part/drawing identifiers and mark which faces, bores and mounting features are functional. If only a used part is available, agree measurement, drawing release and design responsibility before making a pattern. Wear or damage must not silently become the new master geometry.
Choose a material against your production route
The entry’s general material wording is not a guaranteed tolerance.
The site mentions wood or aluminium for small runs and metal patterns for larger quantities. [1] It gives no selected material or cycle life for this example. Ask for a comparison based on your casting process, order quantity, repeat schedule and expected drawing changes.
Repeatability and storage
Agree reference features to inspect after storage or repair. For wood tooling, ask how storage conditions and dimensional checks are managed.
Foundry transfer
State whether the pattern remains at one foundry or may move. Identify the new machine/plate interface and who reviews any process compensation.
SFSA explains that a pattern used in different foundries or moulding processes may yield different dimensions; humidity can also change wood patterns. [3] This is general steel-casting guidance. It does not select an allowance for the unspecified material in Yingda’s picture, and this page supplies no numerical shrinkage rule.
Approve the part that your assembly needs
An accepted pattern is only one project milestone.
- Define the master: release the component drawing, material and critical interfaces with the design owner.
- Agree tool design: have the receiving foundry and toolmaker resolve the process, parting, core arrangement and any allowances.
- Check the supplied tool: record its identifier, revision, included pieces and approved interfaces.
- Evaluate identified samples: agree cast-surface, dimensional and machining checks for the actual trial parts.
- Close the correction loop: keep a change record and approve the revised part before releasing repeat production.
These are proposed procurement checkpoints, not a report of a Yingda trial. Ask who pays for design changes, tool corrections and further sample runs. Agree what happens if a tool meets its drawing but the resulting component fails the functional requirement.
No reviewed source provides price, MOQ, lead time, inspection tolerance or load performance. Request a project-specific offer after drawing review, with tooling, trials and production parts priced separately.
Turn the example into a defined tooling request
Keep the original catalogue reference, then add your own part requirements.
Sources & review
- Yingda original 升降机 entry ↗
Sand-tooling category, original casting photo and general pattern-material choices; no finished lift specification.
2026-10-11 - Yingda manufacturing scope ↗
Tool manufacture and process development; no confirmation that this example includes finished casting supply.
2026-10-11 - SFSA Supplement 3, section 5 ↗
Public PDF text about process-dependent pattern allowance and wood dimensional variation. Steel-casting guidance, no supplier certification or selected allowance.
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.