A buyer searching for Tool Changer is usually trying to stop a bad substitute. A robot is specified by reach, payload, repeatability, the environment, and the safety function around it. The notes below are selection criteria for a Tool Changer. 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 Tool Changer
A robot is specified by reach, payload, repeatability, the environment, and the safety function around it. For a Tool Changer, 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.
Tool Changer is easy to confuse with Robot Gearbox. 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 Tool Changer |
|---|---|
| Payload and reach | Payload at the reach you need, not the maximum of each. |
| Repeatability | The figure and the ISO method if the supplier cites one. |
| Axes and mount | Axes, and floor, wall, or ceiling. |
| Environment | Clean, washdown, or a standard industrial hall. |
| End effector | Who supplies the gripper or tool. |
| Safety | The safeguarding of the cell is part of the machine, not a slogan. |
How to compare two offers
Lay both quotes for Tool Changer on one sheet and line up payload and reach, repeatability, and axes and mount. 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 Tool Changer with a cheaper line that omitted payload and reach.
Documents worth having before the deposit
Ask for the load diagram. Payload falls as reach increases. The file should name Tool Changer 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
- Ignoring the safety cell.
- Buying reach at a payload the diagram does not allow.
- Adding gripper weight and forgetting it counts as payload.
On a Tool Changer, 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: “Tool Changer — Write payload at reach, repeatability, mount, and who guards the cell.” 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 RoHS / CE belong
Searches often add a constraint to Tool Changer: RoHS / CE, or stainless / corrosion. Keep those on this page. RoHS is a material limit. CE is a declaration that lists the rules relied on. Ask for the document that names this part number and revision. Name the alloy or the coating and the chemical it must survive. Stainless is a family, not a guarantee. 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 Robot Gearbox.
Questions buyers actually ask
What should an RFQ for Tool Changer include?
Write payload at reach, repeatability, mount, and who guards the cell.
Is a cheaper Tool Changer the same part?
Only if payload and reach, repeatability, and the documents match. A missing line is a different offer.
Do waterproof, OEM, or IP words need their own page?
No. For Tool Changer they are extra lines on this specification. Ask for the test or the drawing that gives the word a value.