How to write an industrial equipment RFQ that gets a usable reply

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A purchase request that says “need a thickness gauge ASAP” usually gets a polite delay. A request that names the application, the identity you already have (or know you lack), and the constraints that actually matter gets a usable next step.

This note is for engineers, planners, stores and buyers who need industrial inspection, measurement or automation equipment — and want a specialist UK desk to reply without a week of clarification emails.

Why most RFQs stall

Specialist suppliers and sourcing desks stall when any of these are missing:

• Identity — manufacturer and model/PN, or a clear statement that identity is unknown
• Application / requirement — what the instrument must do, in plain language
• Quantity and timing — including whether the date is real (shutdown) or flexible
• Delivery country and any site constraints
• Condition — new only, or whether surplus / refurbished / used is acceptable
• Certificates — what must appear on paper, and what is optional

Obsidian Dynamics would rather tell you we cannot help than invent a quote on incomplete identity.

The fields that unblock a reply

Use this as a checklist. You do not need a perfect datasheet on day one.

Field	Why it matters
Company + work email + name	So the reply reaches a human who owns the job
Manufacturer	Narrows channel and obsolescence risk (optional if unknown)
Model / part number	Turns a conversation into a locate-or-indent path (optional if unknown)
Quantity	Pricing and sourcing behaviour change at 1 vs 10
Application / requirement	“Remaining wall on coated pipe, field use” beats “UT kit”
Timing / required date	Shutdown dates change what is worth attempting
Delivery country	Export, freight and compliance follow from this
Condition acceptable	Stops wasted search for “new only” when used would pass
Calibration / documentation needs	Manufacturer CoC vs UKAS via third-party lab vs none
Photo of nameplate or snippet of BOM	Fixes ambiguous PNs fast

If you only know the application, send that. Say what you do not know. That honesty saves days. Part number is useful when you have it — it is not mandatory to start.

Indent, obsolete, or not sure?

You have a live commercial path in mind (indent / current product):
Send a requirement with manufacturer and model if known. We review supply options where OEM terms allow. We do not claim an authorised distributorship we do not have.

The instrument is discontinued or awkward:
Use Instrument Exchange / source a hard-to-find part and send manufacturer + model/PN when you have them. That desk exists for catalogue failure.

You are not sure which door:
Send a requirement anyway and choose requirement type Not sure. We will route it — or tell you if a standard catalogue channel is obviously better.

Certificates — say what you mean

Be precise:

• None required for this buy
• Manufacturer certificate / CoC
• UKAS-accredited calibration via a third-party laboratory — say so explicitly
• Other documentation (ATEX dossier, material certs, etc.) — name it

Obsidian Dynamics is not UKAS-accredited and does not operate a calibration laboratory. If you need UKAS, we arrange it through a third-party lab and label it that way.

Do not write “must be certified” without saying which certificate. That phrase alone causes rework.

What happens when you send it to us

1. We read the requirement.
2. We reply by email with the next step — clarify, locate, or a clear “unable to help.”
3. Availability is confirmed individually. We do not imply stock.

For discontinued process or calibration instruments with a known PN, Instrument Exchange is usually the faster door.

Related reading

• How to source an obsolete or hard-to-find industrial part
• How to identify an industrial instrument from its nameplate
• Send a requirement
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