Can I send a rough requirement before final drawings are ready?
Yes. Send your current assumptions first, then mark pending items clearly so we can return a provisional quote scope.
Contact
Contact QDD Motors
Share your application, target specs, quantity plan, and destination. We will respond with practical engineering and sourcing support.
Factory Location
Shenzhen / Dongguan Hub
Guangdong Province, China
RFQ Checklist Before You Send
| Required Item | Example | Why It Helps |
|---|---|---|
| Target motor family | QDD actuator / hollow-shaft joint motor / IEC-NEMA motor | Quickly narrows viable models and quote range. |
| Torque at speed | 45 N·m peak, 12 N·m continuous, 8:1 gear ratio | Prevents over-reliance on holding torque only. |
| Mechanical interface | Hollow shaft encoder, flange, CAN FD, connector drawing revision | Avoids sample mismatch and assembly rework. |
| Quantity plan | Prototype qty + annual forecast | Improves lead-time and pricing accuracy. |
| Destination and terms | Country, Incoterm, requested ship date | Aligns packaging, documents, and shipping plan early. |
What Happens After Inquiry
- Engineering pre-check for model fit and data completeness.
- Quote direction with lead-time assumptions and risk notes.
- Sample scope alignment and validation acceptance criteria.
- Production and delivery planning for approved programs.
Common Clarification Questions
How should we handle engineering changes after sample approval?
Use a revision-controlled change request with effective lot and impact scope agreed by both teams.
Can we align on compliance files before mass production?
Yes. Please list required document types in the RFQ stage so they are included in validation and delivery planning.
Suggested First RFQ Email Format
If your team needs a fast start, use this structure in the first email. It improves quote precision and reduces clarification cycles.
- Project background and application scenario.
- Motor target: frame size candidate, torque at speed, electrical window.
- Mechanical interface: shaft, flange, connector, drawing revision.
- Commercial scope: prototype quantity, annual forecast, destination, and target ship date.
What You Should Review Before Sending RFQ
- Products for architecture-level selection and model-family fit.
- Solutions / Applications for scenario-specific constraints and validation priorities.
- OEM Capabilities for design collaboration, quality controls, and delivery process.
- Engineering Blog for practical checklists you can copy into buyer workflows.
- QDD Actuators for gear ratio, peak torque, reflected inertia, backlash, and CAN FD/API documentation screening.
- Harsh Environment Solutions when your inquiry includes IP rating, washdown chemicals, seal materials, or stainless housing constraints.
Typical First Response Package
| 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. |
Company information
Operated by Magatom Dynamics Co., Ltd.
深圳磁原动力科技有限公司
This company signs contracts, issues commercial invoices and receives payments for new orders. Please use the payment details provided on your invoice.