Packaging

Split Shipment Specs for Custom Pins, Coins and Keychains

Why correct product can still become a failed delivery

A custom pin, coin or keychain order can pass artwork approval, plating checks and final AQL, then still fail at receiving because the split shipment plan was too loose. The defect is not always enamel color, plating or attachment strength. More often, 8,000 correct pieces are packed as one bulk SKU when the campaign needs 14 destination lots with different quantities, backing cards, languages, barcode labels or carton marks.

This risk is highest for distributors, event operators, franchise networks, retail launches and race merchandise programs. If a factory receives only artwork and total order quantity, it will normally pack for production efficiency: 50 or 100 pieces per OPP bag, several bags per inner box, and export cartons filled by weight. That works for one warehouse. It is risky when cartons must go directly to venues, regional offices, 3PLs or retail distribution centers.

At ZheCraft, split shipment packing is treated as a production specification, not a warehouse note added after goods are finished. For enamel pins, challenge coins, brooches, keychains, fridge magnets, patches and lanyards, the split plan should be approved before mass production starts. Backing cards, barcode files, inner-pack counts, carton weights, inspection sampling and commercial packing lists all depend on the final SKU structure.

Build destination lots as packing SKUs

Avoid informal destination names such as “London event,” “VIP box” or “west region” in email threads. Use a packing SKU that combines project, item type, artwork version, packaging type and destination. A practical format is project code plus item type plus version plus destination number, for example 26MAR-PIN-A-CARD-D03. The same code should appear on the purchase order, packing worksheet, carton label, invoice and final packing list.

For metal items, separate finish and attachment even when the front artwork is identical. A 30 mm antique gold pin with a butterfly clutch and the same pin with a black rubber clutch should not share a packing SKU. The hardware changes weight, complaint risk and spare-part allocation. For coins, separate 45 mm nickel plating from 45 mm antique brass, and separate bare coins from capsules or velvet boxes. For lanyards, do not combine 15 mm polyester screen print with 20 mm dye sublimation, even if the logo is the same.

A factory-ready packing sheet should list finished size, material, plating, attachment, individual packaging, backing card version, inner-pack quantity, export-carton quantity, destination quantity, overage rule and label language. For quantity allocation, use zero tolerance by destination. If D03 requires 500 pieces, D03 should receive 500 pieces, not 492 with the missing units hidden in another destination carton.

Spec field	Factory-ready instruction	Control point
Packing SKU	26MAR-COIN-B-CAP-D07	Prevents design, finish and destination mix-ups
Destination quantity	D07: 420 pcs plus 2% spare in separate bag	Controls shortages without random over-allocation
Inner pack	20 pcs per inner box, one SKU only	Speeds receiving and counting
Carton rule	No mixed SKUs unless approved on worksheet	Prevents hidden stock in wrong cartons
Label language	English plus French for D04 only	Avoids relabeling at importer warehouse
Overage handling	Spare clutches packed by destination, labeled separately	Prevents loose accessories in random cartons

Set pack counts by product risk

Factories often suggest 50 or 100 pieces per bag because it is fast and cheap. That may be acceptable for low-cost soft enamel pins shipped to one distributor warehouse. It is not suitable for mirror-polished challenge coins, retail brooches with stones, acrylic keychains with printed surfaces, or event kits where every carton must be counted quickly.

For enamel pins up to 35 mm, a safe wholesale rule is one piece per OPP bag, then 50 pieces per inner box with backing cards or 100 pieces without cards. For larger pins from 40 to 60 mm, reduce to 25 to 50 pieces per inner box, especially when posts, chains or rhinestones can scratch adjacent pieces. For challenge coins from 40 to 50 mm and 3.0 to 4.0 mm thick, use 10 to 25 pieces per inner box with each coin in a capsule, PVC pouch, OPP bag or tissue wrap.

For zinc alloy keychains, 50 pieces per inner box is workable for light promotional styles. Heavy bottle-opener keychains, spinner keychains or multi-part charms should drop to 25 pieces to keep inner boxes under about 3 kg. For acrylic keychains, require protective film on printed faces and avoid tight bulk bags that can press hardware into the surface. For lanyards, 50 pieces per bundle is usually efficient; retail folded header cards or individual bags may reduce that to 25 pieces per inner pack.

The cost impact is usually lower than post-import sorting. Individual OPP bagging typically adds USD 0.01 to 0.03 per piece FOB. Backing card insertion adds USD 0.03 to 0.08. A printed kraft box, velvet pouch or clamshell can add USD 0.12 to 0.45 for small metal items, and USD 0.20 to 0.80 for heavier gift packaging. If the buyer’s 3PL charges USD 35 to 60 per labor hour to sort mixed cartons, correct factory packing is often cheaper.

Control carton weight, cube and protection

Carton limits should be specified before quotation because they affect freight cost, damage rate and warehouse acceptance. A practical export carton for small metal products is 35 x 25 x 25 cm to 45 x 35 x 30 cm. For courier and air shipments, keep gross weight at 12 to 18 kg per carton. For sea freight to a distributor warehouse, 15 to 22 kg may be acceptable if the goods are not fragile and the cartons are palletized.

Dense products need stricter limits. A 50 mm challenge coin at 3.0 mm thickness can weigh roughly 55 to 75 g before capsule or pouch. Packing 500 pieces in one carton can push gross weight above 35 kg, which is unsafe for normal handling and likely to split cartons. A better rule is 100 to 200 coins per export carton, depending on packaging. For enamel pins, 500 to 1,000 pieces per carton is common, but the upper end should be used only when the pins are small, bagged and not on thick backing cards.

Use protection based on failure mode. Pins with posts need space to avoid bent posts. Brooches with long bars need rigid inner boxes. Coins with mirror fields need capsules or soft pouches to prevent hairline scratches. Epoxy domes and acrylic charms need anti-pressure packing so the surface does not dent or imprint. A reasonable export-pack expectation is no functional damage after carton drops from 60 to 80 cm on corners, edges and faces, but a decorative retail gift box should not be expected to survive that test unless it sits inside a protective shipper.

Product type	Typical inner pack	Typical export carton	Gross weight target
Enamel pins, 25-35 mm	50-100 pcs	500-1,000 pcs	10-16 kg
Brooches, 40-60 mm	20-50 pcs	200-500 pcs	8-14 kg
Challenge coins, 40-50 mm	10-25 pcs	100-200 pcs	12-20 kg
Metal keychains	25-50 pcs	250-500 pcs	12-18 kg
PVC or woven patches	50-100 pcs	500-1,000 pcs	8-15 kg
Lanyards	25-50 pcs bundles	500-1,000 pcs	12-18 kg

Write carton labels for warehouse receiving

A carton label should be readable without opening the box. At minimum, show buyer PO, packing SKU, item description, destination code, quantity per carton, gross weight, net weight, carton dimensions, and carton count by destination. A clear mark is: D05, CTN 3/8, 200 pcs, 26MAR-PIN-A-CARD-D05. Numbering by total order only, such as CTN 17/42, is less useful when destinations are separated after export.

If the customer uses a 3PL, Amazon-style receiving process or retail DC, add barcode rules before production starts. Common thermal label sizes are 100 x 50 mm and 100 x 75 mm. Code 128 is widely used for SKU and carton ID. The printed barcode should have quiet zones of at least 3 mm on each side and should be tested from an actual label, not only checked in a PDF. Low contrast, small bar width, glossy tape over the code or curved placement on a small carton can cause scanner failures.

Do not hide destination details only on the master packing list. Cartons are separated during palletizing, courier relabeling, customs inspection and partial deliveries. If mixed cartons are unavoidable, require a mixed-carton label listing every SKU and quantity on the outside. Keep mixed cartons below 10% of total cartons unless the receiving warehouse has approved sorting. For small spare parts such as clutches, split rings or chains, pack spares by destination in labeled bags rather than loose in the first carton.

• Approve a printed sample carton label before mass packing starts.
• Use the same destination code on PO, invoice, packing list and carton mark.
• Number cartons by destination, for example D04 CTN 1/6.
• State whether labels go on one side or two adjacent sides.
• Send any 3PL, retail DC or Amazon label manual before quotation.
• Photograph final carton marks before export pickup.

Inspect allocation, not only product quality

A standard final inspection may follow ANSI/ASQ Z1.4, General Inspection Level II, with AQL 2.5 for major defects and AQL 4.0 for minor defects. That is useful for cosmetic and functional quality, but it does not automatically catch split-packing errors. An inspector sampling random cartons from a 12-destination order may approve good products while missing that D03 is short and D08 has excess stock.

For split shipments, add a destination packing audit. Inspect at least one sealed carton per destination. For larger destination lots, inspect the square root of the carton count rounded up. If D06 has 16 cartons, inspect 4 cartons. Inside each selected carton, verify SKU, quantity, individual packaging, backing card version, attachment, label, carton number and spare parts. Destination allocation should have zero tolerance: the count is right or it is not.

Keep cosmetic tolerances product-specific. For enamel pins, check plating coverage, enamel fill, exposed metal lines, PMS color match against approved sample, post placement and clutch fit. For soft enamel, small recessed enamel variation may be acceptable; for hard enamel, surface polish should be smooth with no obvious low spots. For keychains, check jump-ring closure and split-ring tension; a practical visible gap limit is under 0.3 mm for standard rings. For lanyards, print position tolerance is typically plus or minus 2 mm for screen print and plus or minus 3 mm for sublimation cutting. For die-struck coins, check edge plating, enamel fill if used, and capsule scratches separately from coin defects.

Price, MOQ and lead-time impact

Split packing is economical when specified early and expensive when requested after bulk packing. For a 3,000 to 10,000 piece metal promotional order, simple allocation into 3 to 6 destinations usually adds 1 to 2 working days. Barcode labels, destination-specific backing cards, retail boxes or 10-plus destinations usually add 3 to 7 working days. If goods are already packed, unpacking and relabeling can add another 2 to 5 working days and increases risk of fingerprints, bent posts, scratched plating and lost accessories.

FOB adders are modest but should be quoted line by line. Manual destination sorting typically adds USD 0.01 to 0.04 per piece. Custom carton labels usually add USD 0.03 to 0.10 per label. Individual SKU stickers add USD 0.01 to 0.03 per piece if applied to bags or cards. Backing card changes can add USD 0.05 to 0.15 per piece at low volume because setup waste matters more than insertion labor. Retail boxes commonly add USD 0.20 to 0.80 per piece depending on size, insert material and print finish.

MOQ is affected by packaging variation even when product MOQ is met. As a working guideline, one common pin design split across six destinations is easy at 1,000 to 3,000 total pieces. Six different backing card versions under 200 pieces each will usually carry higher unit cost and more proofing risk. Printed cards are often economical from 300 to 500 pieces per version; custom gift boxes are more efficient from 500 to 1,000 pieces per version. Smaller lots are possible, but the buyer should expect setup charges or higher unit prices.

Split requirement	Typical added time	Typical FOB cost impact	Risk if added late
Carton labels only	0-1 day	USD 0.03-0.10 per label	Low, if carton count is final
Destination carton allocation	1-2 days	USD 0.01-0.03 per pc	Recounting and carton renumbering
OPP bag plus SKU sticker	2-4 days	USD 0.03-0.08 per pc	Unpacking and relabeling finished goods
Different backing cards	3-5 days	USD 0.05-0.15 per pc	Card shortages, wrong language, proofing delay
Retail gift box per item	4-7 days	USD 0.20-0.80 per pc	Cube increase and courier cost increase

Lock the worksheet before production

The most common failure is approving the product sample but not the packing sample. Buyers review enamel color, plating finish and attachment, then ignore bag size, card thickness, barcode location, inner-box count and carton label. A proper packing sample does not need to use the final mass-produced item, but it should show the real card stock, bag dimensions, label format, barcode position and how the item sits in the inner pack.

The second failure is changing destination quantities after packing starts. If an order uses individual labels and carton allocation, late changes require unpacking, relabeling and recounting. Set a packing freeze date: 3 to 5 working days before ex-factory date for simple orders, and 7 working days for complex multi-SKU programs. After the freeze, changes should be treated as a paid rework request with revised lead time.

Before placing the order, prepare a split shipment worksheet with one row per destination SKU. Include product version, quantity, packaging, inner pack, carton quantity, label requirement, destination code, delivery address code and spare quantity rule. Ask the factory to confirm packing labor cost, added lead time and inspection method in writing. For most custom metal and textile promotional products, artwork approval to mass production is typically 12 to 25 days, with final packing and export booking adding 2 to 5 days. Complex retail packaging, multiple card versions or barcode compliance checks should be planned into the PO, not treated as a last-minute warehouse task.

ZheCraft can review the split worksheet before tooling or printing starts and flag overweight cartons, uneconomical card versions, missing barcode data, mixed-SKU cartons and unclear overage rules. The objective is simple: every destination receives the correct product, correct count and correct label the first time.

Have a project? Send your artwork and target quantity and we’ll reply with a detailed quotation within 12 working hours.