Performance Curves
Request torque-speed, efficiency, and temperature-rise data for the quoted winding and cooling condition.
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Custom OEM Motor Assemblies
Custom rotor/stator kits and motor subassemblies for buyers that need project-specific winding, geometry, wiring, or sensor integration.
Target Buyer:Best for OEM buyers whose mechanical envelope or electrical system cannot use an off-the-shelf motor kit.
Capability Highlights
- Custom winding and voltage matching for existing servo drives.
- Lead wire, connector, sensor, and potting options by project scope.
- Prototype-to-production review for qualified OEM programs.
Typical Applications
- New robot actuator platforms and product refresh programs
- Replacement of high-cost imported motor kits
- Machine modules requiring custom geometry or special wiring
Engineering Focus
- Translate system constraints into electromagnetic, thermal, and mechanical tradeoffs.
- Define drawing revision, CTQ characteristics, and sample pass/fail criteria.
- Avoid unsupported compliance claims until document requirements are known.
Key Evaluation Matrix
| Metric | Typical Range | Why It Matters |
|---|---|---|
| Customization scope | Winding, stack, lead wire, sensor, potting, interface | Clarifies whether a standard variation or a new development path is required. |
| Prototype quantity | Reviewed case by case for qualified projects | Controls sample cost, tooling needs, and engineering resource allocation. |
| Revision control | Drawing and sample records by project | Prevents sample mismatch and production ramp confusion. |
Baseline Parametric Fields for RFQ Review
Final values depend on motor size, winding, thermal path, and custom scope. Include these fields in the first RFQ so engineering can return a usable model or custom design path.
| Parameter | Unit | RFQ Note |
|---|---|---|
| Rated voltage | VDC | Match bus voltage and servo drive current limit. |
| Continuous torque | N·m | State thermal condition and duty cycle. |
| Peak torque | N·m | Define duration and repetition rate. |
| Rated / maximum speed | rpm | Include control and mechanical limits. |
| Torque constant Kt | N·m/Arms | Used for drive sizing and current estimate. |
| Motor constant Km | N·m/√W | Supports efficiency and heat comparison. |
| Back EMF constant | V/krpm | Must match speed and voltage ceiling. |
| Resistance / inductance | Ω / mH | Needed for drive tuning and thermal model. |
| Rotor inertia | kg·cm² | Affects acceleration and control response. |
| Weight / insulation class | kg / class | Supports payload, heat, and safety review. |
| Torque ripple | % or N·m | Critical for robotics, gimbals, and precision axes. |
CAD & Datasheets
2D drawings, datasheets, and STEP/IGES files are shared when the model family and project scope are clear.
Mechanical Integration
Review stator mounting, rotor clamping, air gap, lead wires, and sensor compatibility before sample approval.
Exact Datasheet Fields to Request Before Sample Approval
The table below is not a claim that every configuration has a fixed public catalog value. It is the data package an engineering buyer should request for the selected winding, frame size, and cooling basis before approving samples or CAD release.
| Data Group | Fields | Why Buyers Need It |
|---|---|---|
| Electrical constants | Kt, Km, back EMF constant, phase resistance, phase inductance | Confirms winding fit with bus voltage, drive current, speed ceiling, and tuning assumptions. |
| Mechanical data | OD, ID, stack length, rotor inertia, mass, mounting references, lead exit | Prevents CAD mismatch and helps the buyer validate acceleration and package constraints. |
| Thermal basis | Continuous rating condition, ambient temperature, housing/cooling assumption, insulation class | Separates sustainable torque from short-duration peak torque and avoids heat-path overclaims. |
| Performance curves | Torque-speed curve, efficiency notes, temperature-rise basis, peak torque duration | Lets the buyer compare real operating duty instead of relying on one headline torque number. |
| Inspection records | Resistance, back EMF, insulation / hi-pot, visual check, outgoing record format | Supports sample acceptance, supplier qualification, and repeat-order traceability. |
RFQ Checklist
- Target outside diameter, inside diameter, stack length, and available mounting envelope.
- Continuous torque, peak torque, target speed, duty cycle, and expected motion profile.
- DC bus voltage, current limit, cooling method, ambient temperature, and insulation requirement.
- Lead wire, connector, Hall, encoder, resolver, or bare motor integration requirements.
- Prototype quantity, annual forecast, target delivery country, and requested timeline.
Risk Controls
- Custom request lacks enough engineering data: Use the RFQ checklist before quotation so both sides work from the same baseline.
- Prototype approval does not translate to production: Define CTQ records, test reports, packaging, and inspection expectations before ramp.
Product Gallery
Buyer FAQ
Can you match a special voltage or torque-speed point?
Often yes. Send the torque-speed duty, voltage/current limit, cooling path, and drive information so winding options can be reviewed.
Can you build a replacement for an imported motor?
We can review replacement projects when you provide drawings, performance requirements, photos, and integration constraints.
Related Resources
Inquiry Email
Include target torque/speed, quantity, and delivery location.