What is JWL/VIA/TUV Certification?
JWL certification
1. Definition: The JL certification is the certified mold mark for light alloy wheels in Japan, developed by the Japanese government to ensure the safety of aluminum wheels for vehicles.
2. Scope of application: Suitable for light alloy wheels sold in Japan, including wheels for cars, trucks and buses. Car wheels are marked with JWL, truck and bus wheels are marked with JWL-T.
3. Test requirements: Every wheel put on the market must be tested and meet the standards before it can be put on the market. The JWL standard requires that the wheel must be able to withstand a certain load and torque to ensure safety during driving.
VIA certification
1. Definition :VIA certification is the VIA laboratory certification of the Japan Vehicle Inspection Association, which is a further confirmation of the JWL certification standard. It is a voluntary certification.
2. Scope of application: mainly for modified wheels sold in the Japanese domestic market or wheels with specific market needs.
3. Testing and registration: The products need to pass the strict quality test of the wheel products by the authorized testing organization, and the VIA registration is required after the test is qualified. Only products that have completed the VIA registration are eligible to be marked with the VIA mark, and the maximum load and maximum bending torque models are represented in the test. After passing the test and registration, the outside of the wheel needs to be engraved with the VIA logo for identification.
4. Validity: The VIA certificate is valid for five years from the date of issuance.
TUV certification
1. Definition :TUV certification is a certification issued by the German Quality Standards Certification body, which is one of the important certifications for wheel hub quality and performance in Europe.
2. Test requirements :TUV test requires wheel hub in bending fatigue durability test and radial fatigue durability test, 1 million turns shall not produce cracks, and screw torque reduction shall not exceed 30%; During the impact test, no cracks should occur and no drop in tire pressure should occur within one minute. These tests are designed to ensure the safety and reliability of the wheels under prolonged use and extreme conditions.
3. Scope of application: Suitable for wheels sold in the European market, as well as high-quality wheel products seeking international recognition.
In summary, the JWL, VIA and TUV certifications represent Japan, Japan (for specific markets or modified wheels), respectively.
Different standards and requirements for wheel hub quality and performance in Europe. The development and implementation of these certification standards are designed to ensure the safety and reliability of wheel hub products and provide consumers with higher quality choices.