What should I send when asking for an Electronic Equipment Case quotation?

Answer: Three-view drawings, unit weight, stacking height, transport mode, annual volume and batch size. Leave one out and the plant guesses, which makes both price and lead time meaningless.

Should tooling be paid outright or amortised?

Answer: Above 2,000 units a year, amortising saves cash; below 500, paying outright is cheaper and wins you ownership. The unit difference between the two sits around 8 per cent.

What separates a 352 RMB quote from a 452 RMB one?

Answer: Mostly the batch the tooling is spread over. 452 matches 200 units, 352 matches 500. If the cheaper one also cuts wall to the 5.1 mm floor, cost drops another 8 per cent, which is a different conversation.

A quote promising 30-day delivery — is it real?

Answer: Only for repeat orders on an existing mould with a colour change. A new tool follows the 73-day chain, and any 30-day promise starts counting from a date other than signature.

How much does 90-day payment add to the price?

Answer: About 1.5 per cent at a 6 per cent cost of capital, usually already inside the quote. Shortening terms to 30 days is an easier win than arguing the unit price down.

How should inspection be written to avoid disputes?

Answer: State the AQL value, sampling ratio, judgement items and disposition of rejects. AQL 2.5 costs 6 per cent less than full inspection, and full inspection usually catches under 1 per cent more, so 2.5 suits most products.

Why the Cheapest Electronic Equipment Case Quote Costs Most

Quick answer: A quote for an Electronic Equipment Case usually carries two lines, body and insert; minimum order, tooling ownership, lead-time milestones and payment terms sit in the email instead. Put those four on one basis and the lowest price often becomes the highest.

The Quote Sheet Is Missing Four Lines
Minimum Order and Tooling: Who Pays, Who Owns
Split Lead Time into Four Milestones
Payment Terms Are Part of the Price
Five Traps and the Question That Defuses Each
FAQ

1. The Quote Sheet Is Missing Four Lines

An enquiry email usually holds one outline drawing and a line saying it has to fly. Three days later three quotes arrive between 340 and 452 RMB per unit, a spread of thirty per cent. It reads like a process difference; half of it comes from four lines nobody wrote.

The quote itself carries two rows: body price, insert price.

Omitted item	Usual wording	What it does to cost	What to ask
Minimum order	Made to batch	A 200-piece run spreads a 3-hour changeover over every unit	What is the minimum batch, and what is the premium below it
Tooling	Extra	28,000 RMB once, or amortised into the unit price	Is tooling refundable, and who owns the mould
Lead time	About 30 days	From which date, and does it include first-article approval	Days for sample, tooling, approval, production
Payment	Cash before shipment	90-day terms equal a 1.5 per cent discount	Deposit share, balance trigger, retention

None of those four lines is a product feature, and all of them set the total. Put three quotes on one basis and the spread usually narrows from thirty per cent to under ten, with the ranking changing places.

2. Minimum Order and Tooling: Who Pays, Who Owns

A rotomoulding tool is a welded aluminium shell at 28,000 RMB, and a cavity change only moves a weld bead. An injection steel mould runs 96,000 RMB and a single change needs new EDM work. On the cheaper tool, minimum order can drop to 50 units; on the dearer one, the plant treats 500 as the gate.

Electronic Equipment Case: khaki flat case on worn timber boards, two latches and a moulded handle facing out, blurred boots behind

Batch	Tooling per unit	Material and labour	Unit price, insert excluded
200	140 RMB	312 RMB	452 RMB
500	56 RMB	296 RMB	352 RMB
2,000	14 RMB	278 RMB	292 RMB

The gap between 452 and 292 is 160 RMB for an identical product. Most claims that one supplier is dear come from that supplier quoting your 200 units as 200 units, while the other quietly priced the 500-unit step.

Tooling is paid two ways, and each carries its own ownership. Pay 28,000 RMB outright and the mould should belong to the buyer, with three things written in: mould number and cavity count, storage location, and the right to demand transfer after twelve months without production. Amortise it per unit and the mould stays with the plant, leaving the buyer a right of use that cannot travel to a new supplier.

The third wording is the dangerous one: tooling refunded after 5,000 cumulative units. The money comes back; the mould does not.

Moving a mould is not moving a machine. Stripping takes three days, the aluminium shell needs a crated pallet, and remounting at the new plant needs two days of trial shots. Five days plus freight usually starts at 4,000 RMB, and whoever pays is decided by a contract clause that is often missing.

3. Split Lead Time into Four Milestones

Thirty days means three different things depending on whether the tool exists, has to be built, or has to be modified. Ask in milestones, or the number has no starting point.

Milestone	Typical days	Where it stalls	Compressible to
Sample by hand	11	Foam cutting queue	7 days, plus 800 RMB
Tooling	32	Aluminium welding and finishing	24 days, plus 15 per cent
First-article approval	6	Buyer's internal review	3 days, by video
Production, 1,000 units	24	22-minute mould cycle, two shifts	18 days, three shifts
Total	73	—	52

Of the four, first-article approval is the only one the buyer controls. Samples that sit in a quality department for two weeks are common, while the plant counts production from the approval date, so the delay lands on the buyer. Write approval as a written reply within three working days, deemed accepted after that, and half the argument disappears. Within the 32 days of tooling, only 21 are machining; the rest is scheduling. In peak season, March to May and September to November, aluminium welding queues push the same mould to 45 days, so booking tooling in a quiet month or accepting a plant's existing near-size cavity are the two practical routes. The 24-day production figure assumes two shifts; three shifts reach 18 days, but night-shift reject rates usually run two points higher, and that belongs in the same calculation.

The three words a lead-time table must never omit are the start date.

4. Payment Terms Are Part of the Price

Payment terms are a price clause wearing a finance label. At an identical 352 RMB, cash before shipment and 90-day terms differ by about 1.5 per cent at a 6 per cent cost of capital, which means a supplier offering 90 days has already priced that 1.5 per cent in.

Electronic Equipment Case: olive body open on a timber deck, orange dividers splitting the cavity into four bays, four black latches, a round purge valve

The deposit share decides whether the plant schedules you at all. Thirty per cent is the rotomoulding norm; below 20 per cent, orders sit behind customers who paid 50 per cent, and the delay never shows on the lead-time table.

Retention of 5 per cent held for six months is the buyer's only effective quality lever.

The basis needs writing down, though: tax-inclusive or net, first batch or full year, and whether returns are deducted from it. One wrong word turns 5 per cent into 3, which over a year is worth dozens of cases.

5. Five Traps and the Question That Defuses Each

Numbers on a quote do not lie, they omit. These five are the most common omissions, each followed by the question that closes it.

Wall quoted at the lower tolerance limit. A 6 mm callout with 5.1 mm measured is still in tolerance, 15 per cent lighter and 8 per cent cheaper. Ask whether the figure is nominal or a measured floor, and put the six-point minimum into the contract.
Insert quoted at 25 mm against a 30 mm drawing. Every 5 mm of EVA saves 11 RMB and costs about a third of the cushioning stroke. Ask for thickness, density and closed or open cell, all three in writing.
Packaging excluded. A carton and pallet add 12 RMB per unit and an export crate 46 RMB, invoiced at shipment. Ask whether packaging is included and whether export needs fumigation.
No inspection standard. AQL 2.5 against full inspection is a 6 per cent difference, and the contract turns out to say only that national standards apply. Ask for the AQL value, sampling ratio, judgement items and disposition of rejects.
A one-way raw material clause. Polypropylene rising 8 per cent on the monthly average triggers a price rise, and a fall triggers nothing. Ask for the trigger, the reference index, and symmetry, attached as an annex.

The first two traps change the product; the last three change the arithmetic. The product ones cost more: 0.9 mm less wall puts a stacked case into collapse at the third layer, while a 12 RMB carton is only a number on an invoice.

Conclusion

The price of an Electronic Equipment Case does not live in the unit-price column. It lives in minimum order, tooling ownership, the lead-time start date and payment terms. Put those four on one basis and a thirty per cent spread becomes ten; leave them out and the lowest quote is the dearest one.

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.