Why can't a Stackable Container quote be compared on unit price alone?

Answer: Shot weight and tool share are adjustable. A 0.6 kg gap is 6.6 yuan of resin; one tool over 500 units adds 500 yuan each.

Can the order be pushed down to 300 units?

Answer: Yes, at a price: 300 units carry a 280,000 yuan tool at 933 yuan each.

Is a 45-day lead time realistic?

Answer: Only with an existing tool; a new one needs 47 days from design to first batch.

When does a two-cavity tool pay off?

Answer: Above 8,000 units a year. It costs 450,000 yuan, needs a 2,000 t press, cuts machine time 18%.

How should trade-in credit be negotiated?

Answer: Agree the sorting standard first. Only same-grade, insert-free units carry 55% regrind value; otherwise settlement drops to the lowest band.

Stackable Container Procurement: Quotes, MOQ and Lead Time

Quick answer: A Stackable Container price is five blocks added together: resin, tool amortisation, machine time, decoration and packing. Fix weight, wall thickness and resin grade before arguing MOQ, then split lead time into four stages before comparing quotes.

What a Stackable Container Quote Is Made Of
MOQ and the Mould Amortisation Break-even
Tonnage, Cycle Time and the Unit Price
Lead Time Breakdown and the RFQ Fields
Trade-in and Scrap Credit
FAQ

1. What a Stackable Container Quote Is Made Of

Two Stackable Container bodies of 600 × 400 × 300 mm can weigh 3.2 kg and 3.8 kg. At 11 yuan a kilo for impact copolymer PP that 0.6 kg gap is 6.6 yuan per unit.

Cost block	Basis	Typical share
Resin	Shot weight times price, 3% sprue	38 to 45%
Tool	Tool cost divided by quantity	8 to 15%
Machine	Hourly rate, cavities, yield	20 to 26%
Colour, print	2% masterbatch, per plate	5 to 8%
Packing	Station hours, pallet, film	10 to 14%

Two things hide in a quote. Regrind at 20% gives up 15% of falling-dart strength at virgin price, and ribs for four 45 kg units need a slide that adds 12% to the tool.

2. MOQ and the Mould Amortisation Break-even

A single-cavity tool costs about 280,000 yuan. At 1,000 units it carries 280 yuan each, at 5,000 units 56 yuan, at 20,000 units 14 yuan; the curve flattens after 3,000.

Stackable Container: wooden pallet on a wet warehouse floor, one orange case standing upright, three stacks four high behind, daylight from a roller door

MOQ has two meanings. The tooling MOQ is the smallest run that pays for a set-up: PP dries two hours at 80 °C and a mould change takes four to six hours. The economic one is where price stops falling, above 2,000 units.

Batch (units)	Tool share (yuan/unit)	Relative price
500	560	100
1,000	280	88
3,000	93	79
5,000	56	76
20,000	14	73

3. Tonnage, Cycle Time and the Unit Price

Tonnage follows projected area. A 600 × 400 mm Stackable Container has 2,400 cm²; at 0.4 t/cm² and a 1.2 safety factor that is 1,150 t, so a deep body runs on a 1,300 t press. On 800 t, flash and short shots arrive together.

Cycle time follows wall thickness on a Stackable Container: 95 seconds at 2.8 mm, 118 seconds at 3.3 mm, which lifts machine time 24%. Masterbatch runs at 2% with drift held to ΔE 1.5, and each print plate adds 0.35 yuan per unit.

4. Lead Time Breakdown and the RFQ Fields

A supplier quoting 45 days and one quoting 70 differ on tooling. Split it: five days of design, 20 of machining, two for T1, five for sample approval, 15 for the first batch, then 20 days per 5,000 units.

Field	Example	What goes wrong without it
Envelope	600 × 400 × 300 mm, plus or minus 2 mm	Stack misses the pallet
Weight, wall	3.8 kg, wall 2.8 mm	Cheap quote, thin part
Resin	Impact copolymer PP, MFI 8	Cold dart failure
Stack load	Four high, base carries 180 kg	Ribs creep and bow
Colour	Reference chip, ΔE 1.5	Batch mismatch
Print	Two-colour, artwork attached	Plate cost added later
Hardware	Four latches, stainless rivets	Salt spray failure

Payment belongs here too: 30% deposit, 60% before shipment, 10% after acceptance, AQL 2.5 sampling.

5. Trade-in and Scrap Credit

Scrap credit follows weight and virgin price, not purchase price. Clean regrind is worth 55% of virgin; mixed colour or metal inserts drop it to 30%.

Condition	Route	Credit basis
Same grade, clean	Direct regrind	55% of virgin, 6 yuan/kg
Mixed colour	Downgraded regrind	30% of virgin, 3.3 yuan/kg
Metal rivets	Strip, then regrind	1.5 yuan/kg deducted
Cracks, distortion	No reuse	Scrap plastic, 2.2 yuan/kg

Trade-in is usually a 6 to 10% credit against the new price, with 300 units of one grade per batch, otherwise sorting absorbs it. Credit settles per delivery batch, never as cash, and a take-back clause for 80% of volume adds 3.2 yuan per unit.

Conclusion

Buy a Stackable Container by opening five cost blocks: weight and wall for resin, cavities and tonnage for machine time, quantity for the tool, plate count for print. Fill the RFQ fields first, and a Stackable Container purchase puts money where it can be seen.

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.