A useful explosion-proof motor RFQ gives suppliers one shared specification and asks them to state deviations. Include the application, approved location requirements, electrical and mechanical details, required documents, quantity and delivery scope.
If one supplier quotes a basic motor, another includes accessories and a third assumes different documentation, the prices are not directly comparable. A structured request reduces the time spent discovering those differences after negotiation.
Start with the decision you need to make
Are you replacing an existing unit, purchasing for a new installation or looking for an alternative manufacturer? State this first. For a replacement, attach the existing nameplate, dimensions and any available approved specification. Identify whether the application or operating conditions have changed.
For a new installation, request the technical brief from the project’s responsible team. Where a field is unknown, mark it “to be confirmed” and identify who will answer. An honest blank is more useful than a guessed value that becomes part of the quotation.
Use this RFQ information checklist
| Field | Information to provide |
|---|---|
| Project and destination | Country, end-use location and required customer specifications. |
| Application | Driven equipment, new installation or replacement, and intended duty. |
| Location requirements | Classification and protection requirements supplied by the responsible technical team. |
| Electrical details | Power, voltage, frequency, phase, speed and applicable project limits. |
| Operating conditions | Ambient range, altitude, exposure conditions and intended duty cycle. |
| Drive and accessories | Inverter operation and speed range, sensors, heaters and other required equipment. |
| Mechanical details | Mounting, shaft, flange and dimensional drawing with relevant tolerances. |
| Documents | Datasheet, drawings, relevant certificates and schedules, instructions and agreed test records. |
| Commercial scope | Quantity, delivery destination, required date, quotation currency and delivery terms. |
| Inspection and handover | Agreed checks, document review stages, identification records and shipment-release process. |
For US projects, OSHA’s hazardous-location rule provides the regulatory context for selecting suitable equipment. Have your project reviewer supply the applicable requirements; do not ask competing suppliers to guess them independently.
Make the quotation answer the checklist
Ask each supplier to return the same schedule with a proposed model, confirmation or deviation against each requirement, included items, exclusions and quotation validity. A brochure can support the offer, but should not replace a completed response.
For documentation, ask the seller to identify what is available now and what will be issued with the order. For IECEx claims, the official certificate-status guidance supports checking the current online record rather than relying only on an emailed copy.
Separate the motor price from the purchasing scope
| Cost or condition | What to clarify |
|---|---|
| Motor and options | Exact model, accessories and anything priced separately. |
| Documentation and agreed testing | Included records, additional work and third-party charges. |
| Packaging and inland transport | Export preparation, collection point and loading responsibilities. |
| International delivery | Freight scope, insurance, customs responsibilities and excluded charges. |
| Lead time | Starting event, drawing approval, material dependencies and expected ready date. |
| Warranty and support | Claim process, parts availability, freight responsibilities and exclusions. |
Compare technical responsiveness before ranking the prices. Mark an unresolved offer as unresolved. Do not quietly assume a missing accessory or document is included because another supplier included it.
Write down the approval sequence
A practical sequence is enquiry review, supplier clarification, technical approval, commercial agreement, production release and agreed shipment checks. Set the responsible person for each step and keep the approved specification attached to the purchase order.
If the factory proposes a change, request its impact on documents, dimensions, operation, cost and schedule. Technical approval should come from the designated reviewer. Purchasing coordination should make sure that approval reaches the factory before the change is implemented.
Plan the receiving handover while ordering
Ask who receives the motor and what information that team needs. Agree the identification list, documents, packaging records and any storage instructions to be supplied. When parts or service support matter, request exact part references rather than a general promise that spares are available.
For China-side execution, connect the RFQ with production follow-up milestones and an agreed quality-control scope. These tasks are most useful when they refer to the same version of the order specification.
Frequently asked questions
Can I request a quote before all details are known?
Yes, but label it as preliminary and list assumptions. Do not use an indicative price as approval to manufacture an incompletely specified motor.
Should I request samples?
Ask whether a sample, first unit or document review is appropriate for the order. Define its purpose, acceptance process, cost and relationship to the final production configuration.
How many suppliers should I compare?
A manageable shortlist of responsive suppliers is more useful than many incomplete offers. Use the same brief and resolve the important differences before deciding.
Can GCB help if I already found a supplier?
Yes. You can discuss a defined task such as clarification follow-up, supplier verification, an agreed factory visit or pre-shipment coordination without restarting the entire search.
Bryan’s Perspective
A clear enquiry respects everyone’s time. It lets a capable factory answer properly and helps the buyer see what remains uncertain. My preference is to settle the important questions while there is still room to change the order, rather than push them into production and hope someone remembers later.
Send us your specification or existing quotation
Global China Bridge helps overseas buyers organize sourcing briefs, communicate with Chinese manufacturers, compare offers and follow agreed production and inspection tasks. If you have a specification or an existing quotation, we can discuss what needs clarification and how to move the China-side work forward.
Contact service@globalchinabridge.com, or tell us about your project. An initial conversation is free; any paid work starts with an agreed scope.
Related reading
Verify the manufacturer behind the quotation · Classification information to confirm before ordering
Updated: October 25, 2026