Forklift Trucks
Aerial Work Platforms
Agricultural Machinery
Sanitation Trucks
Yacht
ATV
Construction Machinery
Lighting Lamps
Advanced hair-pin winding increases stator slot fill factor and power density by 25%. PMSM technology improves overall efficiency by 15 to 20% compared to asynchronous AC motors.
Adjustable laminations for custom performance. Compatible with 48V, 76.8V, 96V, and 115V batteries.
40kW high output & 135Nm torque. AI-equipped for optimized electrical and thermal performance.
Simplified plug-and-play harnesses for easy installation and flexible CAN compatibility with CAN2.0B, J1939, and other protocols.
CANBUS enables seamless communication between battery and system. Ensures safe operation and prolonged battery lifespan.
Meet rigorous and strict design, testing and manufacturing standards to ensure high quality. All chips are automobile AEC-Q qualified.
| Attribute | Unit | Para | |||
| STD | PRO | MAX | |||
| Poles/Slots | - | 8/48 | 8/48 | 8/48 | 8/48 |
| Effective Size of Laminations | mm | Φ153xL64.5 | Φ153xL64.5 | Φ153xL86 | Φ153xL107.5 |
| Rated Speed | rpm | 4800 | 4800 | 4800 | 4800 |
| Max. Speed | rpm | 10000 | 10000 | 10000 | 10000 |
| Rated Voltage | Vdc | 48 | 76.8/96 | 76.8/96 | 96/115 |
| Peak Torque (30s) | Nm | 91@20s | 91@20s | 110@30s | 135@30s |
| Peak Power (30s) | kW | 14.8@20s | 25.8@20s @76.8V 33.3@20s @96V |
25.8@20s @76.8V 33.3@20s @96V |
32.7@30s @96V 39.9@30s @115V |
| Conts. Torque (60min&1000rpm) | Nm | 30 | 30 | 37 | 45 |
| Conts. Torque (2min&1000rpm) | Nm | 80@20s | 80@40s | 80@2min | 80@2min |
| Conts. Power (60min&4800rpm) | kW | 6.5 | [email protected] 14.9@96V |
11.8 @76.8V 14.5 @96V |
14.1@96V 16.4@115V |
| Max. Efficiency | % | 94 | 94.5 | 94.5 | 94.7 |
| Torque Ripple (Peak-Peak) | % | 3 | 3 | 3 | 3 |
| Cogging Torque (Peak-Peak) | mNm | 150 | 150 | 200 | 250 |
| Proportion of high-efficiency area (efficiency>85%) | % | ≥80% | ≥80% | ≥80% | ≥80% |
| Peak Current of Phase/L-L (30s) | Arms | 420 | 420 | 380 | 370 |
| Peak DC Current (30s) | A | 435 | 425 | 415 | 415 |
| Conts. Current of Phase/L-L (60min) | Arms | 170@6kW | 160@12kW | 160@12kW | 100@12kW |
| Conts. DC Current (60min) | A | 180@6kW | 180@12kW | 180@12kW | 120@12kW |
| Conts. Current of Phase/L-L (2min) | Arms | 420@20s | 375@40s | 280 | 220 |
| Conts. DC Current (2min) | A | 420@20s | 250@40s | 240 | 190 |
| Cooling | - | Passive cooling | Passive cooling | Passive cooling | Passive cooling |
| IP Level | - | IP67 | IP67 | IP67 | IP67 |
| Insulation Grade | - | H | H | H | H |
| Vibration | - | Max.10g, refer to ISO16750-3 | Max.10g, refer to ISO16750-3 | Max.10g, refer to ISO16750-3 | Max.10g, refer to ISO16750-3 |
A PMSM (Permanent Magnet Synchronous Motor) is a type of AC motor that uses permanent magnets embedded in the rotor to create a constant magnetic field. Unlike induction motors, PMSMs do not rely on rotor current, making them more efficient and precise.
PMSMs operate by synchronizing the rotor speed with the stator’s rotating magnetic field. The stator generates a rotating field via a 3-phase AC supply, and the permanent magnets in the rotor follow this rotation without slip, hence “synchronous.”
Surface-mounted PMSM (SPMSM): Magnets are mounted on the rotor surface.
Interior PMSM (IPMSM): Magnets are embedded inside the rotor. Offers higher torque and better field-weakening capability (ideal for EVs).
ROYPOW UltraDrive High-Power PMSM Motors have the following advantages:
· High power density and efficiency
· Increased torque density and excellent torque performance
· Precise speed and position control
· Better thermal management
· Low noise and vibration
· Reduced end winding length for space-constrained applications
· Compact and lightweight
Suitable for Forklift Trucks, Aerial Working, Golf Carts, Sightseeing Cars, Agricultural Machinery, Sanitation Trucks, ATV, E-Motorcycles, E-Karting, etc.
| Feature | PMSM | BLDC |
| Back EMF waveform | Sinusoidal | Trapezoidal |
| Control method | Field-Oriented Control (FOC) | Six-step or trapezoidal |
| Smoothness | Smoother operation | Less smooth at low speeds |
| Noise | Quieter | Slightly noisier |
| Efficiency | Higher in most cases | High, but depends on application |
FOC (Field Oriented Control) or Vector Control is commonly used for PMSMs.
Controllers require a rotor position sensor (e.g., encoder, resolver, or Hall sensors), or may use sensorless control based on back-EMF or flux estimation.
Voltage: 24V to 800V (depending on the application)
Power: From a few watts (for drones or small appliances) to several hundred kilowatts (for electric vehicles and industrial machinery)
The standard voltage of the ROYPOW UltraDrive High-Power PMSM Motors is 48V, with a continuous power of 6.5kW, and custom higher voltage and power options are available.
PMSM motors are highly reliable and low-maintenance due to the absence of brushes and commutators. However, maintenance or periodic checks may still be needed for components like bearings, cooling systems, and sensors to ensure optimal performance and prevent premature wear.
ROYPOW UltraDrive High-Power PMSM Motors are engineered to automotive-grade standards. They pass rigorous design, testing, and manufacturing standards to ensure high quality and reduce the need for frequent maintenance.
Higher initial cost due to rare-earth magnets
Need for sophisticated control systems (FOC)
Risk of demagnetization under high temperatures or faults
Limited overload capability compared to induction motors
PMSMs use various cooling methods depending on the application. For instance, these include natural cooling/passive cooling, air cooling/forced air cooling, and liquid cooling, each offering different levels of efficiency and thermal management.
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