How to Request an Electric Motor Quote: Getting a Clear, Comparable Price First Time

A buyer sends the same enquiry to three suppliers: "4 × 15 kW motors, please quote." A week later three prices arrive for three different products: a 2-pole IE3, a 4-pole IE4 and a B35 flange motor with PTC sensors. Each quote is correct in its own way, because each supplier filled the gaps with its own assumptions. The result is either a second round of quotes or the discovery, after ordering, that the cheapest offer was for a motor nobody wanted.

A quote request is not a question to a supplier; it is a written description of what you intend to buy. Done well, it brings back a usable quote first time and makes answers from different suppliers directly comparable. Below is how to structure one, what changes with the type of request, and the commercial lines that are most often forgotten.

Start by stating the type of request

• Like-for-like replacement: you want the same motor as one that is running or has failed. The most valuable information is the existing nameplate and the mounting dimensions. The supplier's job is to find the equivalent.
• New machine or repeat purchase: as a machine builder you will buy the same motor every month. Repeatability, annual volume and delivery pattern matter more than a one-off price.
• Multi-line project: dozens of motors of different sizes for a plant, line or tender. Here the structure of the list is everything; one missing column raises questions on every line.

Saying which type it is in the first line helps the supplier route the request to the right person and answer in the right format.

The technical line: one motor, one line

Each item should describe the motor well enough for the supplier to select it without asking. The backbone is power, speed or pole count, supply voltage and starting method, mounting arrangement, frame or shaft size, efficiency class and operating environment. What happens on site when any of these is missing is covered in what to check before buying an electric motor; the point here is to write them in the same order for every item. For example:

Item 3 – qty 2 – 11 kW, 4-pole, IE3, 400 V supply, star-delta start (400/690 V winding), B3 foot-mounted, IP55, terminal box on top – application: centrifugal pump, enclosed pump room.

Even a one-word application helps: pump, fan, conveyor, crusher. It lets the supplier spot an inconsistency, such as a light aluminium frame requested for a crusher, and ask about it.

Attachments that support the description

• Replacement: a legible nameplate photo, an overall photo showing the terminal box position, and shaft and flange dimensions; if the plate is unreadable, the dimensions themselves.
• New machine: the machine builder's motor specification or installation drawing, especially the page with flange and shaft dimensions.
• Project: the motor list as a separate spreadsheet, plus any technical specification and the list of required documents.

With several items, name each file after the item it belongs to. Seven photos called "IMG_4521" force the supplier to guess.

Commercial lines that move the price as much as the specification

• Quantity and buying pattern: one-off, a fixed annual volume, or call-offs? For repeat purchases, an estimated annual figure also helps the supplier plan stock.
• Required date: write a date rather than "urgent". You may have to choose between a motor that ships from stock and one that has to be built; see stock delivery vs production order.
• Delivery point: ex works or delivered to site, and whether unloading equipment is available.
• Documents: if you need test reports, a declaration of conformity or dimension drawings, say so up front; documents requested later can delay delivery.
• Alternatives: if the exact motor is not available, what differences are acceptable, for instance IE4 instead of IE3 or B35 instead of B3? This line decides whether the supplier offers an equivalent.
• Billing details: company name and who the quote should be addressed to.

Laying out a multi-line request

For projects with many items, a spreadsheet works far better than an email body. Useful columns are item number, location or machine, quantity, power, poles, efficiency class, voltage and starting method, mounting, IP rating, options (PTC, heater, etc.), application and notes. A few rules save a lot of time:

• Group identical motors used in different places into one item and list the locations in the notes.
• Write "unknown" or "please advise" rather than leaving a cell blank; blank cells get filled with assumptions.
• Flag motors that will run on a frequency drive in a separate column.

The same list is also the basis of your budget; see electric motor budget planning.

Getting quotes you can compare

Send every supplier the same request, attachments and spreadsheet, and if you give one supplier extra information by phone, send it to the others in writing. When the quotes arrive, check each line against your request: a supplier may have substituted an equivalent, left out an accessory or assumed a different delivery term. Reading a motor quote and proforma gives a line-by-line checking order.

Final thoughts

How fast and how accurate a motor quote is depends largely on the request. State the type of request, describe every item in the same order, link attachments to items and fill in the commercial lines, and the first reply is usually one you can act on. To request a quote from HEM Motor, send your list or nameplate photos via our contact page; stock status and lead time come back with the quote.

Frequently Asked Questions

Can I ask for a quote if I don't know every detail of the motor?

Yes, but write "unknown" or "please advise" for the missing fields rather than leaving them blank, and describe the application. The supplier can then ask the right questions or make a reasoned proposal instead of assuming.

What is the right way to send one request to several suppliers?

Send everyone identical text, spreadsheet and attachments, and share any later clarification with all of them in writing. Otherwise each quote prices a different product and the comparison loses its meaning.

Should I say whether I accept equivalents?

It is worth doing, because when the exact product is not immediately available the supplier uses that line to decide whether to propose an alternative. Stating which differences you accept, such as efficiency class, mounting or frame material, avoids unnecessary back-and-forth.

What should a repeat-purchase request include beyond a one-off enquiry?

Include the estimated annual quantity, batch sizes and delivery frequency. It is also important to state that every batch must match the same dimensions and specification, ideally with a reference drawing.