A motor quote checklist: send the configuration and operating requirements

Give the supplier a configuration and a duty requirement.

1. Component identity. Include the full model, winding, interface and other ordering options. If you have not selected a model, say so and describe the requirements instead. Check exact-model identity.
2. Motion and load. Describe the mechanism, required torque or force, speed, acceleration and relevant loading. Label any figures as buyer requirements or source specifications, including their units and rating basis.
3. Duty over time. Describe the motion cycle, pauses and short peaks. A single maximum number does not explain how long or how often it is needed.
4. Thermal installation. Describe ambient and mounting conditions and the cooling arrangement you intend to use. Ask which manufacturer ratings apply to that setup.
5. Electrical and control constraints. State the available supply and intended drive or controller. Include current limits with their basis and the required control/communication interface.
6. Mechanical envelope. Provide mounting, shaft or rotor interfaces, space constraints and the applicable drawing revision. Ask the supplier to confirm the exact configuration’s documents.
7. Commercial and document needs. Include quantity, delivery country, required date and the documents you need: drawings, CAD, curves, installation instructions or certificates. Request confirmation of availability and terms rather than assuming them.

A delivery date in an enquiry is a request, not a supplier commitment. Likewise, an operating requirement is not a confirmed capability until the applicable configuration and conditions have been assessed.

Current basis and duty are separate details.

In the reviewed Tecnotion QTR65 sheet, both peak and continuous current rows use Arms. RMS therefore does not mean continuous duty. Preserve both the current basis and the operating-duration label instead of replacing one with the other.

The sheet also attaches thermal conditions to continuous ratings. Ask how your mounting and cooling compare with those conditions. Do not turn an undocumented peak into an assumed number of seconds or apply an unqualified conversion to an unspecified current waveform.

The ROBOTIS example labels its torque row stall; that label does not settle the sustained-output requirement in an enquiry. Keep the requested duty separate and ask for the applicable performance information.

A checklist you can send

Replace the blank fields with your own requirements. Keep sensitive project details out until you decide what to share with PartMeld or the supplier.

Hello PartMeld,

Please help me prepare a supplier enquiry.

Manufacturer and exact model (or undecided):
Winding, interface and other ordering options:
Source document URL, revision and page:
Quantity:
Delivery country and required date:

Application and intended motion:
Required torque or load, with rating basis and units:
Speed and acceleration requirements:
Duty over time, pauses and any short peak requirement:
Ambient, mounting temperature and cooling arrangement:
Available supply, drive and control interface:
Current limits and stated current basis (A, Arms or other):
Mechanical envelope, mounting and load interfaces:

Required drawings, CAD, curves, manuals or certificates:
Unresolved specification or suitability questions:

Please confirm which requirements the proposed configuration meets,
which remain open, and the applicable commercial terms.

Thank you.

Opens your email application with blank fields. Review the recipient and contents before sending. PartMeld does not send the enquiry automatically or promise a response, stock or lead time.