HUADU

WORLDWIDE

One-stop service provider for automotive

parts repair and remanufacturing

GUANGZHOU HUADU WORLDWIDE

AUTOMATIC TRANSMISSION CO., LTD.

Guangzhou Huadu Worldwide Automatic Transmission Co., Ltd. (hereinafter referred to as

\"Huadu Worldwide\") was founded in 1998. It specializes in automatic transmission repair

and remanufacturing, the R&D and production of remanufacturing equipment and special

tools, spare parts sales, and remanufacturing technical training.

The company has led the formulation of more than ten national standards for automotive

parts remanufacturing, including GB/T 39899-2021 Technical Specification for Remanufactured Automotive Parts – Automatic Transmission. It has successively undertaken three

major national pilot programs: the National Automotive Parts Remanufacturing Pilot, the

National \"Old for Remanufactured\" Replacement Pilot for remanufactured products, and

the National Circular Economy Standardization Pilot.

• Approved as the Guangdong Provincial Engineering Technology Research Center for Automotive

Automatic Transmission Remanufacturing in 2018;

• Elected as the Chairman Unit of the Auto Parts

Remanufacturing Branch of China Association of

Automobile Manufacturers in 2019;

• Elected as the President Unit of the Remanufacturing Branch of China Automotive Producer

Responsibility Organization in 2022;

• In 2022, it was also appointed as the President

Unit of the Remanufactured Parts Branch, China

Automotive Producer Responsibility Organization,

and recognized as a Guangdong Innovative SME;

• Certified as a Guangdong Specialized, Refined,

Differential and Innovative SME in 2023;

• Rated as the Guangdong Provincial Enterprise

Technology Center in 2025.

GUANGZHOU HUADU WORLDWIDE

AUTOMATIC TRANSMISSION CO., LTD.

After years of development, the company has established in-depth cooperation with over

30 renowned automobile and automatic transmission manufacturers, including Imported

GM, Imported Peugeot, Citroën, Renault, ZF, Dongfeng Nissan, Chery, Dongfeng Yueda Kia,

JATCO, SAIC-GM-Wuling, Changan Ford, Brilliance China, FAW Mazda, Beijing Hyundai,

Chrysler, Ssangyong, Aisin, DSI, BYD and AW. It also professionally produces remanufactured products for all cooperative partners.

Headquartered in Guangzhou, the Group has established over 30 directly-operated

branches in major and medium-sized cities including Shanghai, Hangzhou, Nanjing,

Chengdu, Xi’an, Changchun, Wuhan, Kunming and Urumqi of Xinjiang. In 2022, the Group

repaired and remanufactured 62,000 units of various automatic transmissions, achieving

an output value of more than 450 million RMB.

The Group currently has over 1,000 employees in total, among whom 327 are based at the

Guangzhou headquarters and 213 are engaged in remanufacturing production. Skilled

technicians with more than 10 years of working experience account for 60% of the professional team.

30

Directly-run

branches

1000+

The Group has over

327

Guangzhou headquarters staff

60%

Skilled technicians with

over 10 years of service

The automatic transmission assembly performance test rig consists of two parts: the

bench part and the control cabinet part.

The bench part is equipped with a drive motor and an output eddy current loading

device.

The control cabinet part includes a control computer, oil pressure gauges, and motor-eddy current control equipment.

Equipment Introduction

Assembly Test Bench Transmission Control Unit

WE OFFER THREE TYPES OF AUTOMATIC TRANSMISSION PERFORMANCE TEST BENCHES:

Automatic Transmission Assembly Performance Test

Bench and Transmission Control Unit

Type 1: Equipped with both torque and

speed sensors, it can determine the completeness of gear engagement and test

shift smoothness.

Type 2: Equipped with speed sensors, it

can test gear engagement integrity and

calculate the gear ratio.

Type 3: A simple test stand that provides a

preliminary assessment of transmission

operating performance. It features a compact size, is easy to integrate into workshop

layouts, and offers high cost-effectiveness.

Different transmissions require different adapter plates. The dedicated adapter

plates we provide are the key to connecting the transmission to the tester. You

can quickly select the right plate based on the transmission model. From the

very design stage, each adapter plate has been developed with versatility in

mind, and can typically be perfectly matched to 5 to 6 types of transmissions.

This truly enables one plate for multiple uses, effectively reducing fixture costs

and improving testing efficiency.

For details, please refer to the operation manual.

TEST BOARD

We offer a variety of output shafts for different transmissions. You can flexibly select the

appropriate output shaft according to the specific transmission model.

OUTPUT SHAFT

For more detailed information, please refer to the operation manual.

Wire Harness Connector

Developed independently by Huadu Worldwide Automatic Transmission, we offer three transmission controller models suitable for

automatic transmissions (AT), continuously variable transmissions

(CVT), and dual-clutch transmissions (DCT), respectively. Each

controller is equipped with 13 output channels for controlling

solenoid valves, including 8 PWM (Pulse Width Modulation)

channels and 5 switching channels, supporting the testing of

9-speed, 10-speed, and even 12-speed transmissions.

In terms of signal acquisition, the controller can detect signals

from 4 speed sensors, 8 pressure sensors, and 2 temperature

sensors. Using the controller, you can perform shift operations on

the transmission and monitor all pressure and speed states in real

time during the shifting process.

During testing, the controller collects and stores data such as

pressure and rotational speed. You can upload the pressure and

speed data from each shift event (e.g., Reverse → Drive, Neutral

→ Drive, 1st → 2nd, 2nd → 3rd, etc.) to a personal computer for

subsequent shift quality analysis.

Please note that for different transmission models, you will need

to purchase the corresponding test wiring harness connectors

separately. In addition, we provide remote update services for the

test program via the internet.

TRANSMISSION CONTROL UNIT

CVT Transmission Controller Now, the CVT controller is applicable for testing the following transmission models:

CVT TRANSMISSION CONTROLLER CVT Test Controller can

switch between 2

modes freely: It can

either perform a fully

automatic test with one

click, or carry out

independent testing on

individual test items,

flexibly meeting the

in-depth needs of both

R&D and debugging.

• Secondary pulley oil pressure test

• Torque converter lock-up clutch oil pressure test

• Brake valve oil pressure test

• Clutch oil pressure test

• Accumulator valve oil pressure test

• Clutch clearance test and noise test (additional noise monitoring equipment required)

Chery

018CHA

Chery

019CHA

Chery

025CHA JF017E JF015E JF020E K114

Honda1.5T Honda1.5L

K120 K121 K313 CTF25A JF011E JF010E MURANO

（More models are currently under development）

The CVT controller can regulate the working pressure of the primary pulley, detect the actual

oil pressure of the pulley in real time, and simultaneously monitor input speed, output speed,

transmission oil temperature, as well as oil pressure data of key components. It also supports

shift control.

AT Transmission Controller /

Hybrid Electric Drive Control Test Bench

AT TRANSMISSION CONTROLLER

The AT controller supports automatic testing functions, enabling

automatic shift execution while

displaying input speed, output

speed, and clutch operating pressures in real time. Additionally, the

controller supports manual upshift

and downshift operations, as well

as lock-up testing, meeting diverse

testing requirements.

The electric drive control tester is specifically

designed for testing the motor performance of

hybrid transmission systems. This device

supports motor speed input control, enables

forward and reverse rotation operations, and

accurately identifies the direction of motor

rotation. During testing, the operator can

perform speed increase, speed decrease, and

motor reset operations at any time. Meanwhile,

the system measures and displays key parameters in real time, including operating frequency,

output torque, output power, output voltage,

and output current.

HYBRID ELECTRIC DRIVE CONTROL TEST BENCH

Now, the AT transmission controller can test the following transmission models:

A960E TF-82

09G

红旗Hongqi TF-71SC 948TE 9T50 A6MF/A6LF

62TE U660E U760E 10R80 RE4F03B AL4/DP0 A6F7

6F24 A6F5 UB80E （More models are currently under development）

After completing a test, the transmission testing system can automatically upload data to a computer and generate variation curves that intuitively reflect the transmission's operating status. The

system supports one-click test report generation and automatically determines whether the transmission is pass/fail, significantly improving inspection efficiency and accuracy.

For TCU-integrated transmission products,

the controller simulates the Controller Area

Network (CAN) in a vehicle to control the

built-in TCU.

TRANSMISSION TEST CONTROLLER

Report Generation System/Transmission Test Controller

REPORT GENERATION SYSTEM

supports

non-standard

customization.

The valve body tester is available in two types

based on the test system: one is suitable for

automatic transmission (AT) valve bodies, and

the other is suitable for continuously variable

transmission (CVT) valve bodies. The equipment

supports shift testing, solenoid valve inspection,

oil pressure data acquisition, and shift timing

measurement, and features automatic testing

capabilities. The test time for a single valve body

is approximately 15 minutes, and a test report

can be automatically generated upon completion.

VALVE BODY TEST BENCH

We offer a variety of adapter plates

for different transmission valve

bodies. You can flexibly select the

corresponding adapter plate

according to the specific transmission model.

ADAPTER PLATE

The solenoid valve tester determines the operating

status of solenoid valves by collecting oil pressure

data. Based on the test results, it automatically

generates curve charts for easy comparison and

analysis, enabling accurate determination of

whether a solenoid valve passes the test. The

device provides free test data for various solenoid

valve models and supports remote updates of test

programs and data. By simply changing the test

fixture and wiring harness connectors, you can

quickly switch and perform immediate testing on

multiple solenoid valve models.

SOLENOID TEST BENCH

More Product Showcase

More Product Showcase

The multi-purpose oil pressure test equipment features three test functions.

MULTI-PURPOSE OIL PRESSURE

DETECTION EQUIPMENT

LEAKAGE TEST

This is used to test the sealing integrity of

components within an automatic transmission, including clutches, brakes, brake band

servos, and other elements, to ensure they

are functioning properly.

SENSOR TEST

Testing the performance of internal pressure sensors inside the valve body.

This device simulates the real-world operating

environment of an air compressor and establishes a heat exchange cycle, enabling evaluation of cooling capacity and detection of

abnormal noises during operation.

AIR CONDITIONING COMPRESSOR TESTER

DUAL-CLUTCH TEST

Inspecting the engagement status of the

dual clutch.

Designed for performance testing of

drive motors and supports non-standard

customization.

NEW ENERGY TEST

EQUIPMENT SERIES

DESIGNED FOR PERFORMANCE TESTING OF DRIVE MOTORS AND SUPPORTS NON-STANDARD CUSTOMIZATION.

Use highly customized tooling to ensure repair accuracy and efficiency, and improve the

productivity and consistency of the remanufacturing line.

Transmission

Control Unit

Disassembly

Tools

Accumulator

Valve Plate

Fixture

Solenoid Valve

Disassembly

Tools

Accumulator

Pressing

Fixture Base

More Product Showcase

Non-standard customization and solution formulation

When standardized products cannot fully meet your unique needs, we provide in-depth

non-standard customization services and full-process solution development support.

Whether you are facing special application scenarios, complex technical specifications, or

aiming to create a differentiated brand identity, we can tailor a complete solution for

you—from concept to final implementation.

WHAT WE CAN DO

Go beyond the limits of conventional

products. We offer one-on-one R&D

and production based on your specific

requirements for parameters, functionality, materials, structure, or appearance. From minor component adjustments to full-machine or complete

system customization, we respond

flexibly to every need.

NON-STANDARD

CUSTOMIZATION

Based on your project background,

budget, timeline, operating environment, and long-term goals, our team

of senior engineers and product specialists conducts feasibility analyses,

develops technology roadmaps, and

provides phased implementation

plans—ensuring that the solution is

both practical and forward-looking.

TAILORED SOLUTION

DEVELOPMENT

GUANGZHOU HUADU WORLDWIDE

AUTOMATIC TRANSMISSION CO., LTD.

Contact Person: Zhong Yaowen

Tel: 13660881518

Add: Building A, West Railway Bridge, National Highway 107, Huadu

District, Guangzhou