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

The short answer: before paying, ask the supplier to give every order line a candidate number and to link that number to the machine or assembly identity, the old part number or a labelled component photo, the supplied condition, the batch or lot marking, and only the relevant dimension, material or test record. Do not accept a mixed batch as one general pack of SANY spare parts.

For a remote Kazakhstan project, rejection is expensive. A part may look right but be old stock, superseded, a different length, a different seal material, or an alternative-source filter. The purpose of the questions below is not to collect many pages. It is to connect each line item to a physical part and to the document that supports the decision for that part.

1. Separate machine identity from part identity

Ask for a candidate number on every order line

Candidate number means a simple line reference that stays the same on the quotation, packing list, photos and any certificate. If the supplier cannot number the lines, a mixed batch is harder to inspect on arrival.

Collect model, suffix, serial number and installation position

The machine model alone never confirms fitment. Ask for machine model and suffix, product identification number or serial number, assembly name, installation position, and the old part number removed from the machine when available. If the old number is superseded, ask for a documented supersession note, not just a verbal substitution.

Add nameplate and component photos before payment

For seals, hoses, filters or undercarriage parts, request a photo of the label or marking and a wider photo of the housing, end fitting or assembly area. A photo is a useful check, but it is not proof of fitment, batch quality or authenticity by itself.

2. Ask different evidence by part group

Not every part group needs the same evidence. A thick document pack can still lack an item-to-record link.

Filters

Ask for the candidate number, SANY part number or listed alternative, seal face and thread or mounting dimensions where non-standard, and the production date or batch/lot marking. If the filter is claimed to be original SANY or a specific supplier, ask for a written purchase or supply record tied to that batch as provenance evidence; that record still does not independently prove authenticity.

Seals and soft parts

Ask for the kit or single-seal part number, dimensions, material family, such as NBR or FKM, and lot marking. If the seal will be stockpiled for delayed installation, ask for the supplier's stated storage conditions and shelf-life position, but remember the supplier statement is not independent proof of future condition.

Hoses and hose assemblies

Ask for the assembly part number, overall length, end fitting types and sizes, and any pressure or standard marking on the hose. If the project specification requires it, ask for a batch or production test record linked to the candidate number. Do not accept a random pressure-test certificate that cannot be matched to the hose physically.

Undercarriage items

For track shoes, pins, bushings or idlers, ask for the part number, key dimensions such as pitch, pin diameter, bushing diameter or shoe bolt pattern, and condition: new, reconditioned or used. If supplied as new, ask for the heat or batch marking only if the specification or contract requires that level of traceability.

3. Check the link from each document to a physical part or batch

Ask: which line does this document belong to?

For every certificate, test sheet or traceability record, ask the supplier to state the candidate number and the physical marking it matches. If the answer is not clear, request the missing evidence instead of guessing that all batch items are covered.

Keep identity, fitment, provenance, sample results and batch acceptance separate

Identity is the part number and marking. Fitment is the catalogue revision, machine serial or assembly check. Provenance is the written supply or purchase record linked to the batch or lot. Sample results are test data only when the specification requires them. Batch acceptance is the buyer's or project's acceptance decision against the applicable requirement.

These are not the same thing. A supplier statement or photo cannot prove every claim. Only the responsible parties can decide acceptance using the applicable requirements.

4. Put unresolved points into dated written supply terms

Ask the supplier to list unresolved questions separately, with the missing document or photo, the due date for the answer, and the consequence if it is not supplied. A verbal answer is easy to lose on a remote project.

Request the final written supply terms to include the candidate-number list, condition, batch or lot markings, and which documents are supplied for each line. The buyer still decides whether that evidence is sufficient. Do not ask for stock or delivery promises as a substitute for identity and batch evidence.

5. What remains unverified and the procurement next step

If the supplier has not sent the old part number, serial-number range, component photos or batch markings, those points remain unverified. The next step is to issue a written request that says: for each line, give candidate number, machine serial or assembly identity, part number, condition, batch marking, and only the dimension, material or test record relevant to that part.

Parts matching support note

A third-party commercial service such as MechLink may help organise single-item or batch candidate-number enquiries, but it is not a substitute for SANY catalogue checking or the buyer's acceptance decision. If you send an enquiry, include model and serial number, old part number, component or housing photos, and relevant labels or records. Kazakhstan phone/WhatsApp: +77026412810. Website: https://www.mechandlink.com.

Sources

No supplier documents, manuals, certificates or databases were inspected for this article because the question did not include a specific batch. The checks above refer to document categories that should be supplied by the seller or checked against the applicable machine records. No page numbers, URLs, standards or test results are cited because none were available to verify.