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5000watt 48volt Traction Motor Variable Speed Gearbox Electric Conversion Kit for Car


Quick Details

Place of Origin:

Zhejiang, China

Brand Name:


Model Number:

5kW AC Motor


Asynchronous Motor


100 Hz





Protect Feature:


AC Voltage:

48V 60V 72V


IE 2


Electric Car Vehicle or Boat

Rated Power:


Max. Power:


Rated Voltage:

48V / 60V / 72V

Rated Speed:

1400~3650 r/min

Max. Speed:

6500 r/min

Max. Torque:

80 N.m

Protection Grade:

IP 65




5kW AC Motor Driving System for Electric Car

Packaging & Delivery

Selling Units:
Single item
Single package size:
35X25X25 cm
Single gross weight:
28.000 kg
Package Type:
Seaworthy packing
Lead Time
Quantity(Sets) 1 – 10 11 – 100 >100
Est. Time(days) 10 20 To be negotiated

Online Customization

About Us

Uni Technology Co., Ltd. cooperates with such universities in China as Nanjing University of Science and Technology, Jiangnan University, Sichuan International Studies University to develop cost-effective powertrain systems with high power density, high reliability, matching ISO26262 for different models (tricycles, logistics cars, commercial vehicles and passenger vehicles) based on the their requirements and future markets, at the same time, we also work with automobile manufacturers like Jiangling, Marshell Green Power, China FAW Group Corporation.

Our team members:
1. Managers with a comprehensive understanding of the market
2. Experienced engineers who have engaged in electric vehicle industry for more than 10 years with full proficiency in technology
3. Energetic and motivated colleagues
After years of development, the supply & sales chain was adjusted and improved constantly and now became a completed system. We can provide comprehensive service from pre-sales introduction to after-sales technical support.

Our products:
1. AC driving system (3kw-15kw): AC motor and controller
2. PMSM driving system (3kw-50kw): PMSM motor and controller
3. Transmissionassembly: rear axle, front live shaft, reducer and rear/front drive assembly
4. Power supply system: battery charger and Lithium battery

5. Other components:DC-DC converter, dashboard, pedal, encoder and brake

BothAC motor system and PMSM motor system have their advantages and disadvantages. Through continuous experimentation and practice, we found that PMSM motor is more energy-saving comparing with AC motor, but the latter is also irreplaceable in some places or occasion (see FAQ Q1 for more informationabout the differences between AC motor and PMSM motor). If you are not sure what type of motor andwhat power to be used in your equipment, fee free to contact us. We have a whole team to give you support.

Product Description

5kW AC Motor for Electric Car


1. Simple in structure

2. High reliability

3. Free maintenance

4. Big torque and high efficiency

5.Pure copper winding

5kW AC Motor Controller for Electric Car


1.DSP chip

2.High temperature adaptability

3. Programmable

4. Anti-rollback function

5. Regenerative braking effect

6.Multiple protections (under-voltage and over-voltage and high temperature)

Rear AxleAssembly for Electric Car


1. High torque

2. improvement in efficiency

3. Space-saving

4.Strong load bearing capacity

Product List

AC Motor

Rated Power: 3kW-15kW

Rated Voltage: 48V-96V

Max. Torque: 60N.m-140N.m

PMSM Motor

Rated Power: 3kW-50kW

Rated Voltage: 48V-420V

Max. Torque: 60N.m-235N.m

AC Motor Controller

Rated Power: 3kW-15kW

Rated Voltage: 48V-96V

Max. Current: 250-500A

PMSM Motor Controller

Rated Power: 3kW-50kW

Rated Voltage: 48V-420V

Max. Current: 300-500A



Torque Capacity:180N.m

Net Weight:15~30kg

Rear Axle


Standard Length:


Break Type:

drum/disc hydraulic pressure

ElectricVehicle Power System Training Platform


5kW AC Motor Driving System forElectric Car

After calculation, we use the following driving system.

Motor Power


Max. Torque (N.m)


Speed (rpm)


Rated Voltage (V)


The max. speed can be 40km/h.

Production & Service

R&D Department

We have a strong R&D team with many years of experience in areas such as electrical, electronics, software, machinery, automation, etc.

Production Center

A full set of processing equipment can guarantee the accuracy;

Advanced automatic wire embedding system is to ensure the consistency;

Semi-automatic production linewill improve theproductivity.

Motor Production

Semi-automatic production line: more than 80% automation
60 sets in a single shift; annual production: 15,000; max. annual production: 45,000 sets

Controller Production

Semi-automatic controller production line: more than 80% automation
100 units in a single shift

Quality Management

The quality assurance department will supervise the production process and the test equipment can insure the product quality.


Packing & Delivery

Normal package is wooden box and it will befumigated. Sometimescartons will be chosen if by air. If there are any special requirements, please talk to our sales person.


Q1: What is the difference between AC motor and PMSM motor?

AC motor is simple in structure, easy to manufacture, of high reliability and large start torque. At the same time, it can withstand harsh environment. While PMSM motor, with higher efficiency, small size and light weight saves more than 20% energy compared with AC motor. Both space and energy do matter, but it can not tolerate high temperature. These two types of motor have their advantages and disadvantages. They are suitable for different environments. Please talk to our persons and we will take many factors like car weight, max. speed required, terrain, climate into consideration to suggest the right driving system.

Besides, some parameters can be customized. It is highly recommended to talk to us. The more information we get, the better solution we will provide, which will directly lead to cost-reduction.

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