If you're searching "PMSM motor", you already know it's the best tech for EV conversions. What you actually need is: which one to buy, how much power, and what it costs. Here are CMVTE's PMSM models compared side by side for your conversion.
CMVTE PMSM Motor Lineup
| Model | Rated Power | Peak Power | Peak Torque | Max RPM | Voltage | Cooling | Weight | Best For | Price |
|---|---|---|---|---|---|---|---|---|---|
| PMSM-15 | 15 kW | 30 kW | 120 N·m | 7,500 | 96V / 144V | Air / Water | ~32 kg | Motorcycle, trike, light kart | $1,800-$2,500 |
| PMSM-25 | 25 kW | 45 kW | 210 N·m | 7,000 | 144V | Water | ~45 kg | MR2, Miata, classic Mini, Beetle | $2,500-$3,500 |
| PMSM-35 | 35 kW | 60 kW | 280 N·m | 6,800 | 144V | Water | ~55 kg | SW20 MR2, 240Z, E30, Porsche 914 | $3,200-$4,300 |
| PMSM-50 | 50 kW | 80 kW | 350 N·m | 6,500 | 144V / 384V | Water | ~68 kg | SW20 turbo build, SUV, truck | $4,500-$6,000 |
| PMSM-80 | 80 kW | 120 kW | 420 N·m | 6,000 | 384V | Water | ~85 kg | Heavy truck, bus, commercial | $6,500-$9,000 |
How PMSM Works (Quick Version)
Permanent magnets in the rotor + AC in the stator = smooth, efficient rotation. No brushes, no slip, no heat buildup in the rotor. Field-Oriented Control (FOC) decouples torque from magnetic flux so you get instant throttle response at any speed — 0 RPM to redline. That's why nearly every modern EV (Tesla, BYD, Hyundai) uses PMSM, not induction.
PMSM vs Induction vs BLDC
| PMSM | Induction (AC) | BLDC | |
|---|---|---|---|
| Efficiency | 92-96% | 85-92% | 85-90% |
| Torque at 0 RPM | Instant, full | Needs slip, less | Good but cogging |
| Noise | Silent | Whine | Audible cogging |
| Controller required | FOC (complex) | VFD (simpler) | Trapezoidal (simplest) |
| Weight for same power | Lightest | Heaviest | Medium |
| Maintenance | None (no brushes) | None | None |
| Cost per kW | Higher | Lower | Lowest |
For EV conversion, PMSM is the best balance of efficiency, torque density, and smoothness. The only reason to pick induction is budget. The only reason to pick BLDC is simplicity on a very small vehicle.
Picking the Right PMSM for Your Vehicle
| Vehicle Weight | Example | Recommended PMSM | Expected Performance |
|---|---|---|---|
| < 600 kg | Motorcycle, trike, quad | PMSM-15 | 80 km/h top, 40 km range |
| 600-1,000 kg | Mini, Beetle, Fiat 500 | PMSM-25 | 110 km/h top, 60 km range |
| 1,000-1,400 kg | MR2, Miata, 240Z, 914 | PMSM-35 | 130 km/h top, 70 km range |
| 1,400-1,800 kg | SUV, light truck, van | PMSM-50 | 120 km/h top, 60 km range |
| > 1,800 kg | Heavy truck, bus | PMSM-80 | 100 km/h top, 50 km range |
All ranges are estimates with a 15 kWh battery pack (144V 105Ah). Larger battery = longer range.
What's Included with CMVTE PMSM Motors
- Motor + factory-mounted temperature sensor (KTY84 or PT100)
- Matching motor controller (FOC, with regen)
- 3-phase HV cabling with shielded connectors
- Cooling adapters (for water-cooled models)
- Adapter plate available for common gearboxes
- Throttle pedal with position sensor
FAQ
Is PMSM better than BLDC?
Yes — PMSM uses sinusoidal back-EMF for smoother torque, quieter operation, and higher efficiency. BLDC with trapezoidal back-EMF has torque ripple at low speed.
Why does every modern EV use PMSM?
92-96% efficiency across the entire RPM range, instant torque from 0 RPM, and no rotor heating. Tesla uses induction only in legacy models; the Model 3/Y use PMSM.
Do PMSM motors need maintenance?
No brushes, no commutator — zero scheduled maintenance. The only wear item is the bearings (lifespan: 20,000+ hours).
Can I use a PMSM with my existing gearbox?
Yes — CMVTE makes adapter plates for most manual transmissions: Toyota C-series, Mazda M5OD, BMW Getrag, VW 02A/02J, and more.
Are rare-earth magnets a concern?
We use NdFeB (neodymium) magnets with anti-corrosion coating. Demagnetization only occurs above 150°C — our cooling system keeps the rotor below 80°C under full load.
Get a Custom PMSM Recommendation
Tell us your vehicle model, target speed, and budget. We'll match you to the exact PMSM + controller + adapter plate configuration.
WhatsApp / Phone: +86 181 2358 8272
Email: [email protected]
Mention "PMSM" for a quick spec sheet with pricing by return email.
