Send target OD, voltage, loaded speed, torque, ratio, duty cycle, noise/backlash limits, drawing status, feedback, connector, quantity, destination, and compliance needs so we can return actionable engineering direction.
Inquiry Email
Include OD/length, voltage, torque, loaded speed, ratio, drawings, quantity, and destination.
Instant Chat
+86 18857971991
Fast channel for clarifying specs, drawings, and sample timing.
RFQ Intake Logic
Overseas OEM programs move faster when the first message contains fit, load, interface, and procurement data in one thread. WhatsApp is best for fast clarification; email is best when drawings, CC recipients, or revision records matter.
WhatsApp: +86 18857971991
Email: [email protected]
Fit notes, quote direction, and sample validation scope.
CAD / STEP
Use the dedicated CAD path when your team needs an outline drawing, STEP/IGES envelope, custom shaft, or flange review before freezing the enclosure.
Quality Evidence Scope
If your supplier approval path requires ISO certificate review, APQP/PPAP/PFMEA-style files, material declarations, test reports, or outgoing inspection records, name that scope in the first RFQ. Certification and compliance evidence is program-specific and should be verified before PO.
RFQ Routing Matrix
A quote-ready inquiry does not need every field perfectly filled. It needs the correct first constraint, the evidence that supports it, and a route into CAD, sizing, material, OEM, or quality review when that route will change the sample decision.
| Buyer Starting Point | Set Primary Constraint To | Fill These Form Fields First | Best Next Route | First Response Outcome |
|---|---|---|---|---|
| The enclosure or mating CAD is already fixed | Fixed envelope or CAD fit | Application / Device Module, Target OD / Max Length, Drawing / Shaft / Flange / CAD Request, Available Files / Attachments. | CAD / STEP review | Engineering can confirm whether a standard 6mm-42mm platform fits before detailed performance quotation. |
| The target load is known but the motor family is open | Torque-speed sizing | Required Torque / Stall Torque, No-Load / Loaded Output Speed, Gear Ratio / Target Output RPM, Rated Voltage, Duty Cycle. | Sizing calculator | The first reply can discuss ratio, winding, stage count, efficiency, and thermal margin instead of restarting from catalog guesses. |
| Noise, backlash, wear, or gear material may decide | Low noise or low backlash | Noise / Backlash Limit, Duty Cycle / Expected Life, Validation Evidence Needed, Quality Evidence Scope, application failure mode. | POM vs metal guide | The quote can include material route, grease/test assumptions, and measurable acceptance limits. |
| The program needs custom interface or harness work | Custom shaft, flange, cable, or connector | Drawing / Shaft / Flange / CAD Request, Cable / Connector / Harness, Available Files / Attachments, Design Stage. | OEM interface review | Custom work is tied to drawing revision, sample scope, and production control instead of informal sample notes. |
| Supplier approval, audit, or shipment files matter | Quality evidence or supplier approval | Quality Evidence Scope, Destination / Compliance Concerns, Validation Evidence Needed, Quantity / Annual Volume, Target Timeline. | Quality evidence pack | Certification, OQC, test-report, material, and export document expectations are scoped before sample or pilot approval. |
RFQ Evidence Pack
Use this handoff when you come from the diameter selector, application routing matrix, calculator, CAD page, or quality content. The goal is to send the facts that change model choice, validation scope, and quote assumptions in one thread.
| Source / Decision | Copy Into RFQ | Quote Impact |
|---|---|---|
| Product or diameter selector | Product family, diameter candidate, target OD, max length, shaft or mounting constraint, and any platform already ruled out. | Keeps engineering from restarting at catalog level and narrows the first model path. |
| Application or solution page | Machine module, load event, validation priority, noise/backlash/life target, and the failure mode your team must avoid. | Connects the motor choice to real operating risk instead of a generic torque number. |
| Gear ratio / torque calculator | Rated voltage, no-load speed, loaded output speed, gear ratio, continuous torque, peak or stall torque, and duty cycle. | Prevents quotes based on no-load RPM or stall torque alone. |
| CAD / STEP review | Drawing revision, mating CAD status, STEP/IGES need, shaft/flange details, cable exit, and mechanical boundary that cannot change. | Avoids samples that pass electrically but fail enclosure fit or harness routing. |
| Material and quality review | POM or MIM preference, low-noise target, backlash limit, life-test concern, compliance files, certificate scope, and outgoing inspection expectation. | Lets quotation include validation evidence instead of only unit price. |
| Quality evidence / audit pack | ISO 9001, ISO 13485, or IATF 16949 scope to verify if applicable; PPAP/APQP/PFMEA need; OQC/test report expectation; RoHS/REACH/export document list. | Turns buyer trust requirements into reviewable document scope before sample, pilot, or annual-volume approval. |
| Procurement plan | Prototype quantity, annual forecast, destination country, target ship date, packaging need, and buyer approval gate. | Aligns quote assumptions, sample lead time, compliance scope, and production ramp planning. |
If you are unsure where to start, send the application, target OD, loaded speed, required torque, drawing status, sample quantity, and destination first. Engineering can return a clarification list before you freeze the sample specification.
RFQ Form
Use the form for quick routing, or email directly when drawings, attachments, or CC recipients are required.
Complete RFQ Data Package
This is the practical version of the RFQ requirements from the site plan: enough data for engineering to judge fit, performance, validation, and export assumptions without several clarification cycles.
| RFQ Group | Include | Factory Decision |
|---|---|---|
| Mechanical boundary | Target outer diameter, maximum length, shaft drawing, flange/mounting drawing, cable exit, connector envelope, CAD/STEP status. | Confirms whether a standard platform can fit or a custom shaft/flange path is needed. |
| Electrical and speed case | Rated voltage, no-load speed, loaded output speed, gear ratio, or target output RPM. | Prevents sizing from no-load RPM only and anchors the motor/gearbox combination. |
| Torque and reliability | Required continuous torque, stall or peak torque, duty cycle, expected life, noise limit, backlash limit, and ambient constraints. | Sets gear material, grease, bearing support, thermal margin, and validation test scope. |
| Procurement and export | Prototype quantity, annual quantity, destination country, RoHS/REACH or other compliance concerns, and target ship date. | Aligns quotation assumptions, document package, packaging, and production ramp planning. |
| RFQ Item | Example | Why It Helps |
|---|---|---|
| Motor family and envelope | 12mm BLDC planetary gear motor, max length 38mm | Quickly narrows viable 6mm-42mm standard or custom platforms. |
| Voltage, speed, torque, ratio | 12VDC, 100 RPM loaded, 0.5 N-m continuous, 64:1 | Prevents sizing around no-load RPM or stall torque only. |
| Duty cycle, life, noise, backlash | 2s on / 30s off, 100k cycles, <45 dB, <1 deg play | Aligns gear material, grease, bearings, and test limits. |
| Interface and electronics | D-cut shaft drawing, M2 flange, Hall sensor, JST connector | Avoids sample mismatch, cable interference, and PCB rework. |
| Quantity, destination, compliance | 20 samples / 5,000 pcs per year, Germany, RoHS/REACH | Aligns packaging, documents, and shipping plan early. |
Quote Accuracy
| Missing or Vague | RFQ Risk | Best Fix |
|---|---|---|
| Only no-load speed is supplied | The selected ratio can miss the real loaded output speed. | Add loaded RPM at the expected torque and operating voltage. |
| Torque is listed without duty cycle | Thermal rise and gear wear cannot be judged from torque alone. | Add on/off timing, cycle count, life target, and peak or stall event. |
| No shaft, flange, or cable drawing | Samples may fit electrically but fail enclosure or harness routing. | Attach 2D drawing, mating CAD, or mark dimensions that are still open. |
| Quantity and destination are not named | Quote, compliance file scope, packaging, and shipping assumptions stay vague. | Add prototype quantity, annual forecast, country, and required files. |
Yes. Send your current assumptions first, then mark pending items clearly so we can return a provisional quote scope.
Use a revision-controlled change request with effective lot and impact scope agreed by both teams.
Yes. Please list required document types in the RFQ stage so they are included in validation and delivery planning.
If your team needs a fast start, use this structure in the first email. It improves quote precision and reduces clarification cycles.
| Output | Purpose | Buyer Action |
|---|---|---|
| Model and architecture direction | Narrow viable options against torque-speed and interface assumptions. | Confirm baseline model path before cost-detail discussion. |
| RFQ clarification list | Close data gaps that affect pricing and lead-time accuracy. | Return missing values and drawing references in one reply. |
| Validation recommendation | Define sample test scope and acceptance evidence for technical sign-off. | Align internal engineering and procurement gates before PO. |
