English specification desk How guides are written

Home / Machinery / How to specify a TIG Welder

Machinery

How to specify a TIG Welder

What to put on an RFQ for TIG Welder: the ratings, documents, and constraints that change the quote.

25 Oct 2026 · 3 min read · Tradinor Desk

Specification points for TIG WelderTRADINOR · FIGUREWhat to lock for TIG WelderAccuracyPower and axesControlUtilities
Put these on the RFQ for TIG Welder before you compare prices.

A buyer searching for TIG Welder is usually trying to stop a bad substitute. A machine tool or production machine is specified by the work envelope, the accuracy, the power, and the duty cycle. The notes below are selection criteria for a TIG Welder. They are not a catalog promise. Confirm every rating on the current datasheet, drawing, or test report for the revision you will receive.

What has to be true of TIG Welder

A machine tool or production machine is specified by the work envelope, the accuracy, the power, and the duty cycle. For a TIG Welder, start from the duty, then the interface to the rest of the machine or the room, then the document that proves the claim. A lower price that leaves one of those blank is a different product.

TIG Welder is easy to confuse with Panel Saw. If the quote could be read as either, add the line that separates them: the rating, the fitment, or the standard named below. Link the drawing number to that line so receiving inspection can reject the wrong one.

Numbers that change the quote

Line What to write for TIG Welder
Accuracy Positioning or machining tolerance, and how it is measured.
Power and axes Spindle or drive power, and the number of axes if it is a machine tool.
Control The controller family and who can service the program.
Utilities Electrical supply, air, and foundation or floor load.
Safety Guards and the declaration for the machinery rules that apply.
Capacity The largest part or cut the machine is being bought to make.

How to compare two offers

Lay both quotes for TIG Welder on one sheet and line up accuracy, power and axes, and control. If a cell is empty, the offer is not finished. Ask for the missing line in writing. When those match, the honest difference is lead time, the test evidence, and who carries the warranty. Do not average a fully specified TIG Welder with a cheaper line that omitted accuracy.

Documents worth having before the deposit

Ask for a layout drawing with service clearances before the machine is shipped. The file should name TIG Welder and the revision, not only the supplier’s homepage. A factory quality certificate such as ISO 9001 can sit beside that file. It does not replace it.

Failures that show up after delivery

  • Leaving accuracy undefined so two quotes cannot be compared.
  • Buying travels that the workholding then eats.
  • Ignoring foundation and incoming power until the crate arrives.

On a TIG Welder, the expensive version of the first mistake is discovering it after the goods are in the crate. Put the rejection condition in the purchase order while the supplier can still restate the offer.

A worked RFQ line

Use this shape, then replace the brackets with your duty: “TIG Welder — State capacity, accuracy, power, utilities, and the control.” That sentence is a template, not a rating of any brand. If a supplier’s datasheet uses different units, convert them onto this sheet so the next offer can be compared.

Where words like IP67 belong

Searches often add a constraint to TIG Welder: IP67, or OEM / custom. Keep those on this page. IP67 is dust-tight plus a defined temporary immersion. It is not a rating for living underwater, and it says nothing about sunlight or salt. OEM or custom means a drawing, a revision, and a statement of who owns the tool. Without those, you are buying the catalog part. If you need a third constraint, add it as another line on the same drawing. A second URL that only swaps the adjective does not give a buyer a second fact.

Related in this section: how to specify Panel Saw.

Questions buyers actually ask

What should an RFQ for TIG Welder include?

State capacity, accuracy, power, utilities, and the control.

Is a cheaper TIG Welder the same part?

Only if accuracy, power and axes, and the documents match. A missing line is a different offer.

Do waterproof, OEM, or IP words need their own page?

No. For TIG Welder they are extra lines on this specification. Ask for the test or the drawing that gives the word a value.