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Overview

Quick Details

Place of Origin:: Zhejiang, China

Brand Name:: EPT

Output Torque:: 400N.M

Input Speed:: 6500 r/min

Output Speed:: 650 r/min

Number of Teeth:: 18 or 22

Effective Outside Diameter(max):: 20.2 or24.3

Speed capacity:: 8000 r/min

Ratio:: 6 to 10

Efficiency:: 99.98%

Packaging & Delivery

Selling Units:: Single item

Single package size:: 50X15X10 cm

Single gross weight:: 15.000 kg

Package Type:: Wooden box

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-100kw): PMSM motor, and controller
3. Transmission assembly: 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

Both AC 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 information about the differences between AC motor and PMSM motor). If you are not sure what type of motor and what power to be used in your equipment, fee free to contact us. We have a whole team to give you support.

Discription

We can provide a complete solution for our customers.

3kW AC Motor for Electric Car

Features:

1. Simple but robust in structure
2. High reliability
3. Free maintenance
4. Big torque and high efficiency
5. Pure copper winding

3kW AC Motor Controller for Electric Car

Features:
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)

Functions of Controller:
Convert direct current of battery to alternating current.
Recharge the battery during braking (regenerative effect).
Receive driver’s commands when accelerating or braking.
Monitor the operation of the driving system in order to ensure safety.
In all, it is the combination of inverter, rectifier, and regulator.

Product List
AC Motor	Rated Power: 3kW-15kW	Rated Voltage: 48V-96V	Max. Torque: 60N.m-140N.m
PMSM Motor	Rated Power: 3kW-100kW	Rated Voltage: 48V-576V	Max. Torque: 60N.m-1000N.m
AC Motor Controller	Rated Power: 3kW-15kW	Rated Voltage: 48V-96V	Max. Current: 250-500A
PMSM Motor Controller	Rated Power: 3kW-100kW	Rated Voltage: 48V-576V	Max. Current: 300-500A
Gearbox	Ratio:6:1/8:1/10:1/12:1	Torque Capacity:180N.m	Net Weight:15~30kg
Rear Axle	Ratio:6.5/8.6/10.5/12.31/14.5/16.9/18.6	Standard Length: 850mm/950mm	Break Type: drum/disc hydraulic pressure

Electric Vehicle Power System Training Platform

Cases

3kW AC Motor Driving System for Electric Tricycle

After calculation, we use the following driving system.

Motor Power	3/9	Max. Torque (N.m)	60
Speed (rpm)	3000/6500	Rated Voltage (V)	DC72

The max. speed can reach 30km/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 line will improve the productivity.

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.

Certifications

Packing & Delivery

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

FAQ

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.

7.5kW 72volt Caixa de Canvis de Transmission Electric Car Gearbox