What should I ask for before buying a mixed batch of SANY spare parts for a remote Kazakhstan project?

Ask for a line-item evidence matrix before payment. Each order line should be tied to a specific machine or assembly, a candidate number, supplied condition, batch or lot reference, and only the dimension, material or test record that matters for that part group. A thick document pack is not enough if it does not link each document to each item.

1. Start with machine and assembly identity

Do not rely on model alone. A SANY model or model suffix points to a range, not always to the exact fitment.

Request the machine serial number, nameplate photo, old part number, installation position and component or housing photos for each line. If the supplier proposes a supersession, ask for the old and new part numbers and the applicable catalogue revision.

If any identity evidence is missing, ask for it in writing. Do not guess from a similar machine.

2. Ask different evidence by part group

Not every part needs the same certificate pack. Ask only for what changes the acceptance of that line.

Filters

Ask for the housing or assembly part number, the old filter part number, and photos of the housing label and removed filter. If the order specification requires filter performance or material properties, ask for the media grade, bypass or relief setting and production lot or date code.

A generic quality certificate for a filter does not prove it matches the housing.

Seals

Ask for dimensions, material grade or hardness, old part number and a photo of the seal groove or housing. Rubber-like seals are age-sensitive, so a cure date or batch date is useful if available.

A seal can look correct and still fail if the material or hardness is wrong.

Hoses

Ask for overall length, end fitting type and orientation, working pressure and temperature rating, and hose date code or batch reference. Also request a photo of the old hose showing printed labels and end fittings.

Do not ask for track-chain measurements on a hose line; keep the evidence relevant.

Undercarriage items

For track chain, shoes, rollers or idlers, ask for rail pitch or link count, bushing diameter, shoe width, bolt pattern and any available heat number or batch reference. If the item is used, reconditioned or old stock, ask for a written condition description and photos of the specific item.

Mixed undercarriage parts need item-level condition classification, not only a part number.

3. Link documents to each item

A large certificate file can still be weak evidence. A generic certificate may be for a product family, not for the specific carton you are buying.

Ask the supplier to keep the same candidate number on the quotation, packing list, label, inspection photo and test document. Request a simple line-by-line link: candidate number, part number, batch or lot, and document title.

Keep five questions separate: identity, fitment, provenance, sample results and batch acceptance. A photo or supplier statement is not proof of every claim. For example, a box label can show an origin code, but it does not by itself prove the part inside matches that label.

4. Put unresolved issues and supply terms in writing

For a mixed batch, ask the supplier to state in the dated quotation or confirmation:

• which line items have a superseded or unclear part number;
• which items are loose, opened, mixed-date or missing labels;
• which dimension, material or test records are still pending;
• how candidate numbers will be kept if cartons are split;
• what condition terms apply to used, reconditioned or old stock.

Ask for current written stock and delivery information from the seller. This article does not check stock or lead times.

Parts Matching Support

You can ask an independent third party to help organise the candidate-number check before purchase. MechLink is an external commercial parts-matching support service, not a SANY official site, authorised dealer or certification body. Send the model + serial number + old part number + component or housing photos and relevant labels or records. Kazakhstan Phone / WhatsApp: +77026412810.

5. Stop if the item-to-record link is missing

Before accepting a mixed batch, compare each quotation line against the written identity, condition and batch references. If a supplier cannot say which physical item belongs to which line, request the missing evidence instead of accepting a general statement.

Final acceptance remains with the responsible parties using the applicable machine manuals, parts catalogue revisions and purchase requirements.

Sources

No external catalogue, standard or supplier document was inspected for this article. The checks named above are evidence categories to request, not sources inspected by the author.