Why is a plastic case factory direct sale cheaper than a trader?

Answer: The 8% to 12% margin and the tooling room disappear; resin, labour and inspection do not, so a quote under material plus machine time means thin walls.

Can MOQ go below 300?

Answer: Stock colours reach 200 units at a 6% premium; lower means a shared tool and a fixed cavity size.

Will the tooling fee be waived?

Answer: Usually at 3,000 units, with ownership staying with the factory. Buying the tool outright costs about 38,000 CNY.

How should late delivery be penalised?

Answer: 1.5% per week with a 10% cap, tied to two dated milestones, production confirmation and trial shot.

Can the price rise after the order?

Answer: Only through an index clause: 8,200 CNY per tonne as the base, settled quarterly beyond 5%.

Plastic Case Factory Direct Sale: Quote, MOQ and Lead Time

Quick answer: A plastic case factory direct sale quote splits into resin, moulding, tooling, hardware, packing and freight; only an open quote can be negotiated. MOQ steps at 300, 1,000 and 3,000 units. Lead time starts at drawing sign-off: 25 days on an existing tool.

What a Plastic Case Factory Direct Sale Quote Contains
MOQ and How Tooling Cost Is Amortised
Lead Time From Drawing to Loading
Three Records to Read on a Factory Audit
Payment Milestones and Documents
FAQ

1. What a Plastic Case Factory Direct Sale Quote Contains

A one-number quote leaves nothing to negotiate. Ask for seven lines: moulding, foam, hardware, assembly, packing, tooling and freight; the first five set the floor, the rest landed cost.

Moulding follows shot weight: 1.9 kg of polypropylene at 8,200 CNY per tonne puts resin at 15.6 CNY, and regrind at 12% trims it to 1.67 kg. On a 1,300 tonne press, single cavity, 72 second cycle, machine time at 380 CNY an hour adds 7.6 CNY.

Line	Basis	Share at 1,000 units
Moulding	1.9 kg resin	62%
Foam insert	Per set	9%
Hardware	Per set	7%
Assembly and QC	Per case	8%
Packing	Per carton	5%
Tooling	One-off	6%
Freight	Per shipment	3%

Resin is the largest variable: a 5% rise moves the quote 3.1%. And the trader margin of 8% to 12% sits across tooling and freight, the slice a plastic case factory direct sale removes.

2. MOQ and How Tooling Cost Is Amortised

A single-cavity tool for the 620 shell costs 38,000 CNY, and a structural change adds 6,000. Across 300 units that is 126 CNY per case, across 3,000 it is 12.7, so negotiate tool ownership before price.

Stock colours start at 300 units, custom at 1,000. A colour change burns four hours of purging and 18 kg of scrap, about 1.4 CNY per case.

Plastic case factory direct sale: black case open, lid flat left, grey foam holding a meter, two modules and a coiled tube

Volume	Tooling	Sample	Production	Index
300 to 999	38,000 CNY	7 days	18 days	1.00
1,000 to 2,999	Halved	7 days	22 days	0.94
3,000 to 9,999	Waived	10 days	25 days	0.89
10,000 plus	Waived	12 days	30 days	0.85

The index is relative to the first tier: 92 CNY at 1,000 units, 84 at 5,000.

3. Lead Time From Drawing to Loading

Lead time starts at drawing sign-off: approval 3 days, tool build 22, trial 7, sample approval 2, production 18 to 30, loading 2. An existing tool ships in 25 days.

Capacity is counted in presses. Eight machines span 250 to 1,300 tonnes, but only the two largest run the 620 shell: 72 seconds a shot, 1,000 cases per machine in 20 hours, 2,000 a day. The 42,000 monthly figure assumes nothing else runs there.

The trial week carries three checks: cavity diagonal three times, wall thickness at nine points, twenty latch cycles; a failure restarts a five day correction.

4. Three Records to Read on a Factory Audit

Removing the middleman makes the audit the only backstop of a plastic case factory direct sale. Three records decide the verdict: resin batch, process card, patrol sheet.

Batch numbers must trace to the hopper: every 25 kg bag carries a lot matched to one machine. A mismatch means mixed resin.

Plastic case factory direct sale: black case corner close up, grey foam cut to a rounded outline, a grey seal along the curved lip

The process card carries mould temperature at 45 C plus or minus 3 and packing pressure at 32 MPa; a drift to 50 C shrinks the cavity 0.4 mm.

Patrol sheets every two hours record 3.0 mm plus or minus 0.1, and three out-of-tolerance readings stop the press; a 620 shell also needs 1,300 tonnes.

5. Payment Milestones and Documents

Three payments are standard: 30% on order, 40% before trial, 30% against the bill of lading copy, with tooling 50% up front. Inspection reports and compliance declarations are the documents buyers forget; without them clearance adds three to five days.

Index resin to 8,200 CNY per tonne on a plastic case factory direct sale, adjusted quarterly once movement passes 5%, both ways. A clause that only rises hands the buyer the risk.

Conclusion

Negotiate by opening the quote, fixing MOQ and locking lead time in that order. Resin and press efficiency are the only levers worth arguing about, and milestones, tool ownership and inspection documents keep the saving real in a plastic case factory direct sale.

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.