EP-3-15kW|18-20kW Permanent Magnet Synchronous Motor For EV
The TZ 180 C SNT series motors are high-performance Permanent Magnet Synchronous Motors (PMSMs) designed for electric vehicles (EVs), such as buses, vans, and logistics vehicles. With power outputs ranging from 3.0 kW to 15.0 kW, these motors offer excellent efficiency and durability. They operate at 60 V for smaller models and 72 V for larger configurations. Speed ranges from 5500 rpm for models up to 5 kW, while the 10 kW and 15 kW variants can reach 6500 rpm. Maximum torque varies from 45.3 Nm in the 3.0 kW model to 118.0 Nm in the 15 kW model, providing powerful performance for demanding applications. Efficiency is between 93.8% and 96.5%, ensuring energy-efficient operation.
1. Technical Specifications of 3-15kW Permanent Magnet Synchronous Motor For EV
| Model | Rated Power (kW) | DC Bus Voltage (V) | Rated Speed (rpm) | Max Speed (rpm) | Rated Current (A) | Rated Torque (Nm) | Max Efficiency (%) | Cooling Method | Insulation Class | Protection Class | Weight (kg) | Overall Dimensions (mm) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| TZ 180 C SNT 060 030 A 001 | 3.0 | 60 | 3000 | 5500 | 45.3 | 9.6 | 93.50 | Natural Cooling | H | IP55 IP67 | 14.8 | L: 143 L1: 168 |
| TZ 180 C SNT 060 035 A 001 | 3.5 | 60 | 3000 | 5500 | 51.6 | 11.1 | 93.90 | Natural Cooling | H | IP55 IP67 | 16.3 | L: 153 L1: 178 |
| TZ 180 C SNT 060 040 A 001 | 4.0 | 60 | 3000 | 5500 | 59.3 | 12.7 | 93.80 | Natural Cooling | H | IP55 IP67 | 17.8 | L: 163 L1: 188 |
| TZ 180 C SNT 060 045 A 001 | 4.5 | 60 | 3000 | 5000 | 66.9 | 14.3 | 94.40 | Natural Cooling | H | IP55 IP67 | 19.3 | L: 173 L1: 198 |
| TZ 180 C SNT 060 050 A 001 | 5.0 | 60 | 3000 | 6000 | 79.0 | 15.9 | 95.60 | Natural Cooling | H | IP55 IP67 | 19.3 | L: 173 L1: 198 |
| TZ 180 C SNT 072 060 A 001 | 6.0 | 72 | 3000 | 6000 | 76.1 | 19.1 | 95.60 | Natural Cooling | H | IP55 IP67 | 20.8 | L: 183 L1: 208 |
| TZ 180 C SNT 072 075 A 001 | 7.5 | 72 | 3000 | 6000 | 97.5 | 23.9 | 95.40 | Natural Cooling | H | IP55 IP67 | 22.3 | L: 213 L1: 238 |
| TZ 180 C SNT 144 100 S 001 | 10.0 | 144 | 3000 | 6000 | 94.6 | 32.0 | 95.40 | Natural Cooling | H | IP55 IP67 | 23.8 | L: 243 L1: 268 |
| TZ 180 C SNT 096 100 S 001 | 10.0 | 96 | 3000 | 6000 | 96.0 | 32.0 | 96.60 | Natural Cooling | H | IP55 IP67 | 23.8 | L: 243 L1: 268 |
| TZ 180 C SNT 144 130 S 001 | 13.0 | 144 | 3000 | 6500 | 96.3 | 42.0 | 96.50 | Natural Cooling | H | IP55 IP67 | 25.3 | L: 283 L1: 308 |
| TZ 180 C SNT 096 130 S 001 | 13.0 | 96 | 3000 | 6500 | 118.0 | 42.0 | 96.70 | Natural Cooling | H | IP55 IP67 | 25.3 | L: 283 L1: 308 |
| TZ 180 C SNT 144 150 S 001 | 15.0 | 144 | 3000 | 6500 | 96.7 | 48.0 | 96.50 | Natural Cooling | H | IP55 IP67 | 25.3 | L: 283 L1: 308 |
EP-3-15kW Permanent Magnet Synchronous Motor For EV diagram

EP-18-20kW Permanent Magnet Synchronous Motor For EV diagram
| Model | Rated Power (kW) | DC Bus Voltage (V) | Rated Speed (rpm) | Max Speed (rpm) | Rated Current (A) | Rated Torque (Nm) | Max Efficiency (%) | Cooling Method | Insulation Class | Protection Class | Weight (kg) | Overall Dimensions (mm) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| TZ 210 XS SNT 336 180 A1 | 18.0 | 336 | 3500 | 9000 | 60.0 | 49.1 | 95.50 | Water Cooling | H | IP67 | 47 | L: 408 |
| TZ 210 XS SNT 336 200 A1 | 20.0 | 336 | 3500 | 9000 | 70.0 | 54.6 | 95.60 | Water Cooling | H | IP67 | 54 | L: 423 |

2. Working Principle of Permanent Magnet Synchronous Motor For EV
The EP-3-15kW Permanent Magnet Synchronous Motor For EV operates on the sophisticated principle of magnetic synchronicity, which distinguishes it profoundly from asynchronous induction motors found in older EV generations. At the core of this system is a rotor embedded with high-coercivity Neodymium Iron Boron (NdFeB) permanent magnets. These magnets generate a constant, powerful magnetic field without the need for external excitation current, which is a primary source of energy loss in other motor types. When the stator windings are energized by a compatible inverter, they create a rotating magnetic field. The rotor magnets lock onto this field instantly and rotate at the exact same synchronous speed, completely eliminating the "slip" phenomenon. This fundamental design advantage results in near-zero rotor copper losses, significantly reducing heat generation and boosting overall system efficiency to levels exceeding 95%. For vehicle operators, this translates directly into extended driving range and reduced thermal stress on components.
Furthermore, our advanced Permanent Magnet Synchronous Motor For EV design utilizes Finite Element Analysis (FEA) to meticulously optimize the stator slot geometry and magnet placement. This engineering precision drastically reduces cogging torque and harmonic distortion, ensuring that the pmsm motor for electric vehicles runs exceptionally smoothly even at low speeds—a critical factor for sightseeing cars and logistics vehicles navigating congested urban environments. The high flux density provided by the Permanent Magnet Synchronous Motor for EV allows our units to achieve an incredible torque-to-weight ratio, providing the rapid acceleration and aggressive hill-climbing ability necessary for modern EVs. When paired with a vector control (FOC) driver, the motor offers precise speed regulation and rapid dynamic response, enhancing the driving experience while maintaining the highest standards of electric motor quality.
3. Premium Materials of Permanent Magnet Synchronous Motor For EV
At EVER-POWER, we firmly believe that superior electric motor quality begins with the selection of premium materials. The EP-3-15kW Permanent Magnet Synchronous Motor For EV series is encased in a robust, die-cast aluminum alloy housing. This material choice is deliberate; not only does it provide a high strength-to-weight ratio, reducing the overall vehicle mass, but it also possesses exceptional thermal conductivity. This allows the casing itself to act as a highly effective heat sink, working in concert with scientifically optimized cooling fins to dissipate heat naturally. This natural cooling capability eliminates the need for liquid cooling pumps or external fans in many applications, thereby simplifying the vehicle architecture and enhancing long-term reliability.
Inside the housing, the stator is wound with high-purity electrolytic copper wire featuring Class H insulation, which is capable of withstanding operating temperatures up to 180°C. This ensures that our PMSM For EV can maintain peak performance metrics even during sustained heavy loads or challenging steep climbs without degradation. The rotor is equipped with sintered Neodymium Iron Boron (NdFeB) magnets, selected specifically for their high magnetic energy product and resistance to demagnetization. Furthermore, the output shaft is precision-machined from high-strength alloy steel and subjected to rigorous heat treatment processes to resist fatigue and torsional stress, ensuring that every permanent magnet synchronous motor used in electric vehicle builds delivers years of trouble-free service.
4. How to install the permanent magnet synchronous motor for EV?
4.1. Motor Selection:
Choose the appropriate motor based on the power requirements of your vehicle. For instance, the TZ 145 H SNT 060 018 A 001 motor provides 1.8 kW of power, making it suitable for lightweight EV applications, while the TZ 210 XS SNT 336 180 A 001 offers 18 kW of power for heavier-duty applications, such as electric buses or larger EVs4.2. Mounting and Alignment:
Ensure the motor's mounting holes align with the vehicle's chassis. The TZ 145 H SNT series, for example, has a standard flange size with evenly spaced holes. For larger motors like the TZ 210 XS SNT, ensure the motor dimensions fit the designated motor compartment4.3. Electrical Connections:
For installation, connect the motor to the vehicle's power supply system, ensuring the proper voltage matches the motor rating. The TZ 145 H SNT 060 018 A 001 motor operates at 60 V, while the TZ 210 XS SNT 336 180 A 001 requires 336 VEnsure secure connections to the controller for efficient energy transmission.4.4. Cooling System:
The motors are designed with natural cooling (air cooling), but higher-power models like the 10 kW version may require additional cooling solutions. The IP67 protection rating ensures that the motor can operate in wet or dusty environments4.5. Torque and Speed Adjustments:
Adjust the torque and speed settings according to the vehicle’s operating conditions. For example, the 3 kW motor reaches speeds up to 5500 rpm, while the 6 kW motor operates at 6000 rpm4.6. Final Checks:
After installation, check the system for any vibrations, unusual noises, or heat buildup. Ensure the motor operates within the optimal range of efficiency, which can be as high as 96.5% in certain models like the TZ 180 C SNT 060 050 A 001
5. Permanent Magnet Synchronous Motor For EV Application Scenarios

6. About EVER-POWER
At EVER-POWER, our commitment to innovation and technical excellence ensures that we deliver top-quality solutions for electric vehicles (EVs). Our Permanent Magnet Synchronous Motor for EV are engineered with precision to meet the dynamic demands of modern EV systems.
Advanced Design & Innovation: Our PMSMs are designed to offer high efficiency and robust performance. With efficiency ratings up to 94.1% and high torque outputs, our motors ensure optimal energy use, reducing operational costs for your vehicle.
Industry-Leading Expertise: Our R&D team is composed of seasoned experts, with 60% of our engineers holding advanced degrees and a collective experience of over 30 years in manufacturing. This deep expertise allows us to create cutting-edge products tailored to specific needs in the electric vehicle sector.
Customization and Flexibility: We provide a range of PMSM models from 1.8 kW to 4.5 kW, suitable for everything from electric scooters to electric cars, allowing our customers to choose the perfect motor for their application. Additionally, we offer IP67 protection, ensuring that our motors perform reliably in challenging environments.
Advanced Manufacturing System: Our high-tech manufacturing facilities feature robotic automation, ensuring consistent product quality, precision, and scalability. This, combined with first-class testing platforms, guarantees that every motor is thoroughly tested to meet the highest standards.
Choose EVER-POWER for a partner that combines expertise, cutting-edge technology, and a commitment to delivering innovative, reliable, and efficient solutions for your electric vehicle systems.
Why choose us?
- 30+ Years
Industry Experience - 70,000 m²
Manufacturing Facility - 100+ Engineers
R&D Team - ISO/IATF
Certified Quality
7. Related Power Transmission Products
To achieve optimal performance from your PMSM For EV, it is crucial to pair it with high-quality transmission components. EVER-POWER offers a comprehensive range of compatible drivetrain solutions.
Gearboxes
High-precision reduction gearboxes are designed to handle the high torque output of our PMSM motors, ensuring smooth power delivery to the wheels.
FAQ
Q1. How does the efficiency of your Permanent Magnet Synchronous Motor for EV compare to traditional induction motors in stop-and-go city driving?
A1. Our Permanent Magnet Synchronous Motor for EV systems maintains high efficiency (often above 90%) across a much broader range of speeds and loads compared to induction motors. In stop-and-go city traffic, where motors frequently operate at partial load, the permanent magnets on the rotor eliminate excitation losses. This results in significantly better energy conservation and longer driving range per charge for urban logistics and passenger vehicles.
Q2. What are the cooling requirements for the 15kW Permanent Magnet Synchronous Motor For EV applications?
A2. The EP-Permanent Magnet Synchronous Motor For EV series, including the 15kW model, is designed with a highly efficient aluminum alloy casing that facilitates excellent heat dissipation. For most standard applications like sightseeing cars or light logistics vehicles, natural air cooling is sufficient due to the motor's high thermal efficiency. However, for continuous high-load applications, we can discuss assisted cooling options depending on your specific chassis airflow.
Q3. How do I match the correct controller to your pmsm motor for electric vehicles?
A3. Matching the controller involves ensuring compatibility with the motor's rated voltage (e.g., 72V, 96V) and peak current requirements. Crucially, the controller must support Field Oriented Control (FOC) and be tuned to the specific inductance and resistance parameters of our motor. EVER-POWER can provide pre-matched pmsm motor control for electric vehicles to ensure plug-and-play performance and prevent compatibility issues.
Q4. Is the permanent magnet synchronous motor used in electric vehicle capable of regenerative braking?
A4. Yes, absolutely. Since the rotor contains permanent magnets, the motor naturally acts as a generator when being driven by the wheels (during coasting or braking). When paired with a compatible controller, this energy can be fed back into the battery pack. This regenerative braking feature not only extends the vehicle's range but also reduces wear on the mechanical brake system.
Q5. What level of ingress protection does the pmsm motor in ev applications offer against water and dust?
A5. Our motors are built to withstand harsh operating environments. The standard protection rating is IP55, with options to upgrade to IP67. An IP67 rating means the electric motor parts are completely dust-tight and can withstand temporary immersion in water, making them suitable for vehicles operating in rainy climates or dusty construction sites.
Q6. Can the shaft dimensions of the Permanent Magnet Synchronous Motor for EV be customized for my gearbox?
A6. Yes, customization is a core part of our service. As a flexible electric motor manufacturer, we can modify the shaft spline, length, and diameter, as well as the mounting flange interface, to perfectly mate with your existing gearbox or rear axle assembly. Please provide your technical drawings for a feasibility assessment.
Q7. How does the torque density of your Permanent Magnet Synchronous Motor for EV benefit hill climbing capabilities?
A7. The high energy density of the NdFeB magnets allows our motors to generate significant torque relative to their physical size. Furthermore, our motors have a high overload capability (often 2-3 times rated torque for short durations). This peak torque is essential for starting on steep gradients or carrying heavy loads uphill without stalling, providing a robust driving experience.
Q8. What is the typical lifespan of a Permanent Magnet Synchronous Motor for EV compared to brushed motors?
A8. The lifespan of our PMSM units is significantly longer than brushed DC motors because there are no brushes or commutators to wear out. The only wearing components are the bearings, which are high-quality sealed units designed for tens of thousands of hours of operation. With proper maintenance, the motor can often outlast the vehicle chassis itself.
Additional information
| Edited by | PXY |
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Materials Available
1. Stainless Steel: SS201, SS303, SS304, SS316, SS416, SS420
2. Steel:C45(K1045), C46(K1046),C20
3. Brass:C36000 ( C26800), C37700 ( HPb59), C38500( HPb58), C27200(CuZn37), C28000(CuZn40)
4. Bronze: C51000, C52100, C54400, etc
5. Iron: 1213, 12L14,1215
6. Aluminum: Al6061, Al6063
7.OEM according to your request
Surface Treatment
Annealing, natural canonization, heat treatment, polishing, nickel plating, chrome plating, zinc plating,yellow passivization, gold passivization, satin, Black surface painted etc.
Processing Method
CNC machining, punch,turning, milling, drilling, grinding, broaching, welding and assembly
QC & Certificate
Technicians self-check in production,final-check before package by professional Quality inspector
ISO9001:2008 , ISO14001:2001,ISO/TS 16949:2009
Package & Lead Time
Size: Drawings
Wooden Case/Container and pallet, or as per customized specifications.
15-25days samples. 30-45days offcial order
Port: Shanghai/Ningbo port




