An RFQ that reads "please quote a PCBA cleaning machine" will come back with a spread so wide it cannot be compared. Name your flux, boards, volume and cleanliness target in a structured request, and suppliers answer with a matched configuration and a firm quotation — often within one working day.
Why Vague RFQs Get Vague Quotes
A scenario that repeats across purchasing departments every week: an engineer sends a two-line request for a cleaning machine, three suppliers reply, and the quotations differ by amounts that make no sense on the surface. The quotes are not wrong — each supplier priced a different assumption. One assumed a compact batch washer for prototype work, another assumed a fully configured inline line with closed-loop chemistry, a third simply added margin for the unknown. The buyer now owns three numbers that describe three different machines, and no basis for a decision.
Suppliers do not price model names; they price configurations, and the configuration is derived from your process. The RFQ is where that derivation either gets real inputs or gets guesses. Everything that makes the quotation precise has to be on the page when you send it.
The Information That Actually Decides the Quote
Grouped by what each block changes in the supplier's calculation:
Process and product. What you clean: assembled boards after reflow or wave soldering, stencils, fixtures or placement nozzles; which flux and paste types are in use across your lines; whether conformal coating, test or shipment follows the wash. This single block selects the machine family — a defluxing line and a stencil cleaner are different products, and a quote for the wrong one wastes a round for both sides.
Boards and carriers. Your largest panel and carrier format, plus the lowest-standoff components you run. These set the chamber, the transport and whether spray can reach under the packages that hold the residue that matters.
Volume. Honest boards per shift and the shift pattern, including peak weeks. Volume decides batch versus inline, which is the largest single cost lever — inflating it buys a machine class you do not need.
Cleanliness requirement. The specification you must meet — an IPC cleanliness requirement, a customer-specific limit or a coating supplier precondition — and how you verify it today. A supplier who knows the target can state whether the proposed machine reaches it, and can back that statement with a trial.
Facility. Power supply, compressed air, available water and drain situation, and the floor space you can free up. Installation surprises come from this block being left out.
Commercial frame. Documentation language, how you want commissioning handled, spare-parts expectations, and whether you need OEM/ODM customization — a capable manufacturer supports OEM configurations under full NDA protection, so say so in the request rather than in the fourth email.
A Copy-Paste RFQ Table
For your next request, a table like this travels well between purchasing and engineering:
| Field | Example wording | Why the supplier needs it |
|---|---|---|
| Application | Post-reflow PCBA defluxing before conformal coating | Selects the machine family and wash chemistry |
| Boards | Largest panel and carrier format; lowest-standoff components | Sizes the chamber, transport and spray reach |
| Flux in use | Water-soluble and no-clean pastes, rework flux included | Determines fluid match and filtration |
| Volume | Average and peak boards per shift, shift pattern | Decides the batch vs inline configuration |
| Cleanliness spec | Customer specification / IPC cleanliness requirement, ROSE verification | Lets the supplier commit to a verifiable result |
| Facility | Power supply, compressed air, water and drain availability | Prevents installation surprises |
| Commercial frame | Documentation language, commissioning format, OEM needs, NDA | Aligns delivery scope before pricing |
Even a partially filled table beats a one-line request, because every empty field a supplier has to guess is a range added to the quotation.
How to Judge the Reply You Get Back
The first reply is a working sample of the next several years. A serious manufacturer responds to a complete RFQ with follow-up questions or a proposal built on your actual inputs — not a brochure and a spec sheet. Response time is part of the message: our own commitment at CHUANGQI is a technical response and a quotation within 24 hours of a complete RFQ, because the way a supplier answers your RFQ predicts how it will handle commissioning, spare parts and everything after. And the strongest replies offer proof: a free cleaning trial on your own boards, run before you are asked to commit to anything.
If the commercial side of the purchase — order terms, customization, shipping — is your next question, the guide to importing SMT cleaning machines covers that ground in detail. For the machine itself, the inline PCBA water cleaning machine product page documents a full production wash–rinse–dry setup you can use as a reference point.
Ready to test the checklist? Send your RFQ with the fields above — or attach your flux list and board formats directly — and expect concrete follow-up questions rather than a brochure, a firm quotation inside 24 hours, and the option of a free trial run on your own panels.
What is the minimum information for a first-pass quote?
Application, board and carrier format, flux types, honest volume, and the cleanliness target. With those five lines a supplier can name the machine family and propose a meaningful configuration; everything else refines the number rather than changes its magnitude.
Should I name my cleanliness specification in the RFQ?
Yes — it is the single most clarifying field. Without it, a supplier can only promise "clean"; with it, the supplier commits to a verifiable result and can propose the verification method alongside the machine.
How much board detail is too much?
There is no such thing for equipment sizing. Panel photos, carrier drawings and the two or three packages with the tightest clearances all make the configuration more precise. The suppliers worth working with will tell you which details they actually used.
How fast should a supplier respond to an RFQ?
Fast enough to prove the request was read. A response within 24 hours is a realistic expectation for a complete RFQ, and silence beyond a few working days usually predicts the same rhythm later, when you need spare parts instead of a quotation.
Can I ask for a trial as part of the RFQ?
Not only can you — you should. Making a trial on your own panels part of the request filters out suppliers who cannot back their configuration with a demonstrated result, and it costs you nothing but a shipping box.