High-torque-density frameless motor platform for low-speed precision and direct-drive control.
Integration baselines for engineering review before sample freeze.
| Parameter | Baseline | Integration note |
|---|---|---|
| Stator OD | 90 / 120 / 178 mm | Use higher OD for low-speed torque reserve and payload growth. |
| Rotor ID | 44 / 60 / 110 mm | ID sizing impacts cable pass-through and bearing envelope. |
| Stack Height | 25 / 35 / 50 mm | Stack increase improves continuous torque at same OD. |
| Rotor inertia reference | 0.6 to 2.9 kg.cm2 | Match with load inertia before controller gain freeze. |
| Interface | Pins | Signal | Integration spec |
|---|---|---|---|
| Phase Leads | U / V / W | 3-phase power | 20 AWG PTFE, high-current variant available. |
| Feedback Port | A / B / Z / 5V / GND | Incremental encoder or hall set | Default 5V TTL; resolver mapping by option. |
| Thermal Monitor | T+ / T- | PTC 1K | Integrate with drive alarm for overload protection. |
| Artifact | Test condition | Output |
|---|---|---|
| Torque-Speed Curve (48V) | 25C ambient, fixed heat sink boundary | Continuous torque line and overload window. |
| Cogging/ripple trend chart | Low-speed sweep under no-load and load points | Smoothness baseline for precision motion planning. |
| Thermal derating map | Ambient 25C to 50C | Allowable continuous torque by ambient class. |
Use these files for preselection. Final CAD and curve packages are released by project revision.
| Asset | Format | Status | Scope | Action |
|---|---|---|---|---|
| CAD Delivery Manifest | TXT | request-gated | Controlled STEP/IGES/SolidWorks package scope and buyer inputs. | Download |
| Torque-Speed Curve Preview | SVG | sample-baseline | 48V continuous and peak torque-speed preview. | Download |
| Torque-Speed Data Baseline | CSV | sample-baseline | Sample 48V low-speed torque motor curve data points. | Download |
For torque motors used in tables, stages, or precision axes, buyers should define acceptable ripple, cogging feel, and velocity stability before comparing peak torque. Otherwise a strong motor can still fail the motion-quality target.
Peak torque is useful for acceleration and disturbance recovery only when the allowed duration, current limit, winding temperature, and recovery time are known. Procurement should not compare peak values without those assumptions.
A torque-dense design must still move heat from winding to housing. Ask how the sample will be mounted during validation and whether derating is needed at the buyer's ambient temperature.
| Metric | Typical Range | Why It Matters |
|---|---|---|
| Torque Density | Application-dependent by OD and stack | Higher torque density enables compact mechanics and higher payload ratio. |
| Cogging / Ripple Level | Controlled through magnetic and slot design | Critical for precision motion quality and low-speed stability. |
| Thermal Saturation Point | Defined by winding and housing heat path | Sets sustainable operating window in continuous production. |
Define the measurement condition, speed band, load condition, and acceptable ripple boundary. Use the same criteria during supplier comparison and sample sign-off.
Validate whether the proposed motor can meet acceleration, deceleration, and settle-time targets without exceeding current or thermal limits in repetitive production duty.
Record motor constants and drive settings used during sample evaluation so later tuning changes do not mask motor selection problems.
| Torque-speed curve with continuous and peak zones | The curve should separate sustainable operating area from short-duration overload and state bus voltage, current limit, and thermal boundary. |
| Smoothness-related test notes | Ask for available Back-EMF, cogging, or ripple-related evidence where project sensitivity requires low-speed stability. |
| Stack-length and winding option notes | When comparing variants, request what changed: stack length, winding turns, wire gauge, magnet grade, or thermal assumptions. |
Performance review is based on project-matched operating conditions, with explicit continuous zone and short-duration peak zone boundaries. Validation context typically includes bus voltage, ambient condition, thermal limits, and duty cycle so engineering teams can compare like-for-like.
Send your packaging envelope and target torque-speed points, and we will route CAD/datasheet support through [email protected] or WhatsApp +86 18857971991.
Yes. Stack length can be adjusted to balance torque output and packaging constraints.
Yes. We can provide torque-speed and related validation evidence based on the project scope.
Email RFQ
Use email for formal RFQ details, drawings, and specification files.
+86 18857971991
Use WhatsApp for quick pre-RFQ clarification and response.
