Automotive Wire Dynamic Bending Tester DIN72551
The Automotive Wire Dynamic Bending Tester is designed to evaluate the mechanical durability and electrical integrity of automotive wires under dynamic bending conditions at low temperatures.
The tester assesses whether wire insulation develops cracks and whether dielectric performance is maintained when subjected to repeated bending cycles in a low-temperature environment, ensuring compliance with automotive cold-resistance requirements.
Application
The tester is used for low-temperature dynamic bending performance evaluation of automotive electrical wires and cables, including:
Automotive low-voltage primary wires
Engine compartment wiring
Battery cables and power distribution wires
Sensor and control cables
Wiring harness conductors subjected to repeated flexing
The tester is intended for use in combination with a low-temperature chamber capable of reaching –40 °C, simulating real cold-environment operating conditions for automotive electrical systems.
Standards
(1) DIN 72551-5:1991 — Road vehicles — Electrical cables — Test methods
(2) ISO 6722 — Road vehicles — 60 V and 600 V single-core cables
(3) SAE J1128 — Low Voltage Primary Cable
(4) ISO 19642 — Road vehicles — Cables for low-voltage electrical systems
(5) QC/T 730 — Automotive Wires and Cables
Parameters
| Item | Specification |
|---|---|
| Sample length | 200 mm |
| Clamping length | 128 mm |
| Dynamic bending angle | Min. 30°, Max. 135° |
| Bending cycles | 300 cycles |
| Cycle counter | 4-digit counter |
| Bending cycle time | 3 s |
| Structural material | Stainless steel |
| Drive motor | Servo motor, 200 W |
| Control system | PLC + Touch Screen |
| Power supply | AC 220 V, 50 Hz |
| Operating environment | Used with –40 °C low-temperature chamber |
Features
(1) Servo motor drive ensures stable bending speed and accurate angle control.
(2) PLC and touch screen control provide precise setting of bending parameters and cycle count.
(3) Stainless steel structure offers excellent low-temperature durability and corrosion resistance.
(4) Stable mechanical design ensures consistent and repeatable test results.
(5) Compatible with low-temperature chambers for realistic cold-environment simulation.
Accessories
(1) Main dynamic bending test unit
(2) Sample clamping fixtures
(3) PLC control cabinet with touch screen
(4) Power and signal cables
Test Procedures
(1) Condition the wire specimen in a low-temperature chamber at the specified test temperature (typically –40 °C).
(2) Install the specimen into the clamping fixtures with the required clamping length.
(3) Set the bending angle, bending cycles, and cycle time on the touch screen.
(4) Start the test and allow the tester to perform dynamic bending automatically.
(5) After completion, inspect the specimen for insulation cracking and conduct dielectric or voltage resistance testing as required by the standard.
Maintenance Information
Regularly inspect clamping fixtures for wear or deformation.
Keep the servo motor and mechanical transmission clean and properly lubricated if required.
Periodically verify bending angle accuracy and cycle counter function.
Ensure all electrical connections are secure before operation.
Perform routine functional checks according to laboratory quality procedures.
FAQ
What is this product?
It is a dynamic bending test instrument used to evaluate automotive wire performance at low temperatures.
What is this tester used for?
It determines whether wire insulation cracks and whether electrical performance is maintained during repeated bending under cold conditions.
Why is this tester important?
Automotive wires must withstand repeated flexing in cold environments without insulation failure to ensure vehicle safety and reliability.
Which industries is this tester suitable for?
Automotive manufacturers, wiring harness suppliers, cable manufacturers, and automotive testing laboratories.
What types of products can be tested?
Automotive low-voltage wires, insulated conductors, control cables, and wiring harness components.
Leave Message Get Price
