1688 Spare Parts
How spare parts sourcing from China works
1688 Spare Parts supports buying enquiries for industrial, machinery and appliance components. A useful order starts with an approved technical definition and clear responsibilities. Drawings, part numbers and samples can begin the review, but a worn component or matching photograph cannot establish a safe, interchangeable replacement.
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1. Define the part and the recovery requirement
Provide the equipment model, part number if known, drawing revision, units and quantity. Include a controlled drawing and compatible model where available. Identify the destination, required recovery date and whether a small urgent quantity followed by a planned batch would be useful.
Explain the application and any pressure, lifting, guarding or other safety role. Provide material grade and condition, heat treatment, finish and known operating conditions. If information is unknown, mark it as unresolved. Agree sample handling and receiving details before shipping a physical reference.
2. Resolve the specification with the responsible engineer
The approved definition should cover geometry, tolerances, datums, threads, mating dimensions and acceptance criteria. State which file governs if a drawing and model disagree, and control changes by revision. Measurements from a used sample need a record of wear, damage and reconstruction assumptions.
The responsible engineer must approve functional requirements, substitutions and any proposed design change. Supplier matching or reverse-engineering discussion is not validation of service suitability. Material identification, engineering analysis and specialist testing require separately agreed competent providers and evidence.
3. Match supplier capability to the approved requirements
Ask candidate suppliers to quote against the same revision, material condition, quantity and inspection plan. Confirm the proposed process and how critical features will be measured. A machine list or instrument photograph alone does not prove capability for the actual part.
For bought-in components, establish model identity, source and traceability requirements. For manufactured parts, identify material evidence, subcontracted operations and any first-article gate. Agree which supplier checks the buying service will undertake and what remains unverified.
4. Compare total cost and an achievable sequence
Separate setup, programming, tooling, material, manufacture, treatment, inspection, packing, service fees and freight. Confirm tooling ownership, storage and transfer terms when relevant. Compare useful quantities without assuming that a larger batch is justified by future consumption.
Ask for dated milestones for specification release, material readiness, first article, production and shipment. Freight options should use packed dimensions, weight and route acceptance. Include destination charges and final delivery; a low unit price does not compensate for an unapproved replacement.
5. Approve evidence before production and shipment release
Where a first article is required, agree the features, measurement methods, sample quantity, report and decision-maker before manufacture. Record deviations and obtain the necessary approvals before releasing the balance. A dimensional report does not automatically establish material performance or service life.
Before dispatch, review the agreed production records, identification, condition and packing. Protect machined interfaces and address corrosion or movement as appropriate to the part and route. Urgency does not remove engineering approval, documentation or carrier requirements. Scope and fees are confirmed for each request.
Questions before you request a quote
- Can you quote from a photograph?
- A photograph can begin identification, but reliable manufacture usually needs more information. Confirm dimensions, material, interfaces and acceptance criteria before committing.
- Can a worn sample replace a drawing?
- It can support assessment, but wear may obscure original geometry and material properties. Reconstruction assumptions need responsible engineering approval.
- Who approves a material substitution?
- The authorised engineer or technical owner must approve it against the application requirements. A cheaper or similarly named grade is not automatically equivalent.
- Is a first article always included?
- No universal scope applies. Agree whether it is needed, what is measured or tested, who reviews the evidence and what releases the remaining quantity.
Submit a defined parts request
Send the drawing revision or available references, quantity, application and destination. List the missing technical information so feasibility and quotation gaps can be identified.
Turn this guide into a buying request →
Keep this page as context. Add what you know; review everything before sending. No purchase is made at this step.
Continue to request →