Where does an OEM plastic container factory quote hide margin?

Answer: In regrind ratio and machine time. Unstated regrind means fresh resin in batch one and 20 percent in batch three; billing a large press while running a small one moves price 15 percent.

Can tooling be folded into the unit price?

Answer: Yes, if the base and the shortfall are defined. A common trade returns half the tooling at 5,000 pieces.

What if the MOQ cannot be met?

Answer: Split one order into two deliveries and count cumulative volume; most plants accept 12-month accumulation.

How are late deliveries enforced?

Answer: A penalty of 0.3 percent of contract value per day, capped at 5 percent.

What should be brought to an audit?

Answer: Drawings with tolerances, six months of delivery records, and packing requirements — the three things an OEM plastic container factory will actually read.

OEM Plastic Container Factory Sourcing: Quote, MOQ and Lead Time

Quick answer: An OEM plastic container factory prices work in four blocks: material, machine time, secondary operations, and packing with freight. MOQ falls out of cavity count and resin lot size, and lead time splits into a production slot plus process days.

What Sits Behind an OEM Plastic Container Factory Quote
Tooling Cost and Who Owns the Mould
Minimum Order from Cavities and Resin Lots
Lead Time: Slot Plus Process Time
Factory Audit and Claims
FAQ

1. What Sits Behind an OEM Plastic Container Factory Quote

An OEM plastic container factory rarely quotes one number. Four blocks sit behind it: material, machine time, secondary operations, and packing with freight. Material is billed on part weight plus 3 percent scrap: PP copolymer at 9.5 RMB per kilogram on a 1.6 kg part gives 15.7 RMB. Name the grade and regrind ratio: 20 percent regrind cuts 1.2 RMB and takes drop performance with it. Machine time runs by the hour: 180 RMB on a 550 tonne press at a 62 second cycle puts 3.1 RMB into each part.

Item	Basis	This example
Material	Weight plus 3 percent	15.7 RMB
Machine time	Hourly rate per shot	3.1 RMB
Packing	Per pallet	1.9 RMB

2. Tooling Cost and Who Owns the Mould

Tooling is an amortisation base, not a cost line. A single-cavity tool runs 38,000 RMB and a two-cavity 62,000 RMB, both rated for 300,000 shots. On 30,000 parts the single-cavity tool adds 1.3 RMB each; on 5,000 parts it adds 7.6 RMB. That 6.3 RMB spread is what MOQ talks are really about.

OEM plastic container factory: corner of a black case, grey foam liner with a square recess holding a screened instrument, one latch

Ownership is written tighter than price. The usual trade is that tooling transfers once paid while the mould stays on the factory floor. Three clauses cover it: the mould number engraved on the bolster, trial reports and steel certificates handed over with the tool, and removal terms. Spares stay with the tool, hot-runner pins included.

3. Minimum Order from Cavities and Resin Lots

MOQ is the larger of two constraints: cavity count and resin lot. A single-cavity tool supports 300 pieces, a two-cavity 500; below that, setup time spread across the run lifts unit price by a third. Resin lots are harder: 500 kg is the smallest a compounder will book.

Setup scrap counts separately: 3 percent for first-off tuning, so a 500 piece order carries 15 pieces that never ship. Purging from natural to black takes 200 kg, so an OEM plastic container factory prices each colour as its own MOQ.

Cavities	MOQ	Unit price
Single	300	26 to 31 RMB
Two	500	23 to 27 RMB

4. Lead Time: Slot Plus Process Time

Lead time has two halves: the slot, when the order reaches a press, and the process days after. A plant with eight presses and 40 tonnes a month quotes 15 day slots in peak season and three in a quiet one. Ask for total lead time alone and you get process days.

OEM plastic container factory: black case open, foam cut for a microphone, recorder, coiled cable and headphones, two latches and a folding handle

Process days check stage by stage: 12 for samples, 3 for first-article approval, 22 for production, 2 for inspection, 28 by sea — 67 working days plus the slot. Every date needs a trigger: the slot starts when the deposit clears, production when the sheet returns signed.

Stage	Days	Trigger
Sample	12	Drawing and colour approved
First article	3	Samples dispatched
Production	22	Sheet signed
Sea freight	28	Inspection released

5. Factory Audit and Claims

Skip the showroom and check four numbers: press tonnage, mould count, monthly tonnage and inspector headcount. An inspector-to-press ratio below one in three makes full inspection fiction.

Claims need a method: three parts are measured fully at first article, production runs to AQL 1.0 with zero tolerance on critical defects, and reject lots are reworked or accepted at a 15 percent discount. Payment runs 30 percent deposit, 70 percent against the bill of lading copy, 5 percent retained 90 days.

Conclusion

Sourcing from an OEM plastic container factory is less about price than about splitting four quote blocks, two MOQ constraints and two lead-time halves. Material on weight plus scrap, machine time by the hour, tooling amortised over volume, lead time as slot plus process days — align those four and quotes become comparable. Chosen on that basis, an OEM plastic container factory keeps quote, MOQ and lead time on paper.

This article discusses only the container (case body) side of specifications and design intent, and does not cover any handling, loading or use of the contents.