Product parameters

Material
Standard PLA
Nominal diameter
1.75 mm
Published diameter tolerance
±0.02 mm
Spool option
1 kg
Color and SKU
Confirm per order
Spool dimensions
Verify outer diameter, width and hub opening
Packing
Confirm carton count and packed weight
Traceability
Request batch label and matching material data sheet

Identify the grade and reel

Start with the grade, color and package identifier. Standard PLA, PLA Classic and PLA+ listings can refer to different products. SUNLU publishes a 1.75 mm nominal diameter and ±0.02 mm tolerance for the standard PLA line, with a 1 kg spool option. For a bulk quote, ask for the actual SKU or EAN, label photographs and the document that corresponds to that grade. The nominal filament diameter does not establish the dimensions of the reel.

Check the feeder and spool

Measure the outer diameter, hub opening and width of the supplied reel. Compare those dimensions with the spool holder or feeder you plan to use. Check that it turns freely and that the filament path does not catch on the flange. If the seller can supply more than one spool version, have the version identified in the quotation. A previous purchase under the same brand is useful context, but the current reel should be checked before ordering in quantity.

Compare samples under consistent settings

For a useful print comparison, keep the printer, nozzle, build surface and profile the same. Record material handling and the lot number. Check the appearance of the first layer and a representative finished surface. If stringing, uneven sheen or feeding problems appear, record the conditions and repeat the test before assigning a cause. A community report can suggest what to inspect, but it does not establish a defect rate for another color or lot.

Check quantity and packaging

Request net filament weight, reel version, units per carton and packed weight. For a mixed-color order, list the quantities separately. Ask whether color variants can share cartons or whether each color needs its own packaging. Verify how the spool is sealed and how the lot is identified on the unit and carton. Compare quotes on cost per usable kilogram delivered to the same destination.

Set replenishment checks

Keep the approved sample label and record its measured reel dimensions, print profile and inspection result. Ask what documentation can accompany replenishment orders and how changes in reel design or packaging will be communicated. On receipt, check the carton labels and inspect a sample from the lot. This makes it easier to isolate a packaging change, feeder mismatch or print-setting issue when a new shipment behaves differently.

Build an itemized quote request

Give each model, variant or color its own line with the requested quantity. Include the destination ZIP, the intended use and any packaging requirements that affect the order. Identify which characteristics are mandatory and which can vary if the seller proposes an alternative. If you need both a sample and a bulk order, state the quantities separately. Ask for the quote to identify the exact configuration and the units used for pricing, such as per unit, per reel or per carton.

Compare quotes on the same basis

Keep a short comparison sheet with the quoted configuration, unit price, quantity per carton, packed dimensions, shipping terms and estimated lead time. Compare offers for the same delivery point and shipment scope. Ask which charges are included and which still need to be calculated. If the quoted item differs from the one you reviewed, have the seller list those differences explicitly. That gives your team a concrete basis for comparing the options before approving a purchase.

Document sample approval

Decide what you want to verify before ordering a sample. Record its label and revision, take photos of the parts or materials, and note the test conditions. Keep the supplier’s drawing or specification with the inspection record. When you place a purchase order, reference the approved configuration and agree how to handle any proposed substitution. Retain a copy of the carton label and the sample notes so receiving staff can compare the delivered lot with the approved item.

Agree on receiving and support

Ask who handles questions about fit and setup, and who is responsible for incorrect, damaged or defective goods. Confirm what evidence the seller needs and when a claim must be reported. At receiving, compare carton counts and labels with the order, photograph visible damage and check a representative unit against the approved sample. Save the paperwork and batch details together. If a problem affects only one variant or carton, this record helps you identify the affected units.

Prepare for a repeat order

Keep a record of the item description, exact variant, supplier reference and approved packaging. When replenishing stock, confirm whether any component, material, carton or labeling has changed. Ask for an updated sample or drawing when a change affects compatibility or what your customer receives. Compare the new quote with the previous order using the same units and delivery terms. This is especially useful when a single order contains several products, since changes can affect only one line.

Send the information that affects your decision

Use the inquiry to share your buying purpose and the specifications you need confirmed. For resale, identify which details your customers will rely on and ask for supporting documentation. For commercial use, explain the machine, material or workflow involved and the test you need to pass. Include any limits on carton size or delivery. You can reference a drawing, a photo or a previous order when it helps identify the requirement. Ask for unresolved items to be listed separately so you know what still needs checking.

Prepare the reseller listing

Before adding the item to your catalog, check that the product name, specification table, packaging photos and the order code all refer to the same revision. Use the measured or documented values for your listing. Include the most important fit limitation alongside the model name, so the buyer can check it without reading the full installation guide. Keep packaging information separate from the product measurements. If your sales team handles customer questions, give them the approved specification and a clear route for escalating a fit, supply or replacement question. When the listing is used by multiple sales channels, provide the same confirmed revision and dimensions to each channel so stock can be identified consistently. Ask the receiving team to verify the label on the first carton before shelving it. Keep a dated copy of the material you reviewed so it can be checked again when the next lot arrives.

FAQ

Will a 1 kg spool fit my feeder?

Check spool diameter, width and hub opening against the feeder requirements. Confirm the spool version with your quote. A 1 kg label describes the filament weight rather than the reel geometry.

How do I confirm which version I will receive?

Request the SKU or EAN, color and spool version. Compare the packaging label with the approved sample. The same brand and color can appear under more than one grade or reel revision.

What should I do if filament slips in the feeder?

Check spool fit and rotation first, then follow your feeder’s troubleshooting instructions. Test the actual spool version before ordering in bulk. A reel that does not rotate freely can interrupt feeding even when filament diameter is correct.

How can I check for stringing or uneven sheen between lots?

Print a sample using the same printer, profile and handling conditions. Record the lot number and compare the result with your approved sample. Keeping the setup consistent helps distinguish a lot change from a change in settings.

What belongs on a bulk PLA quote?

List quantity by color and ask for net weight, carton count, batch identification and packaging details. These fields let you compare delivered cost per kilogram and verify the shipment on arrival.

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