ISO 6722 Automotive Wire Low Temperature Wrapping Tester
The Automotive Wire Low Temperature Wrapping Tester is designed to evaluate the low-temperature mechanical performance of round automotive cables and insulated wire conductors.
The tester determines the resistance of wire insulation and conductor structure to cracking, embrittlement, and mechanical damage when subjected to wrapping under specified load conditions at low temperatures, ensuring compliance with automotive electrical safety and durability requirements.
Application
The tester is widely used for low-temperature flexibility and mechanical integrity evaluation of automotive electrical wires and cables, including but not limited to:
Automotive low-voltage primary wires
Automotive high-temperature and thin-wall wires
Battery cables and power distribution cables
Engine compartment wiring harnesses
Automotive sensor cables and control cables
Applicable test products include round insulated conductors, single-core cables, and automotive electrical wires used in passenger vehicles, commercial vehicles, and special-purpose vehicles.
Standards
(1) ISO 6722 — Road vehicles — 60 V and 600 V single-core cables
(2) ISO 14572 — Road vehicles — Round, screened and unscreened cables
(3) ISO 19642 — Road vehicles — Cables for low-voltage electrical systems
(4) SAE J1128 — Low Voltage Primary Cable
(5) QC/T 730 — Automotive Wires and Cables
(6) JASO D611-2009 — Low-Voltage Automotive Electric Wires
Parameters
Mechanical and Test Parameters
| Item | Specification |
|---|---|
| Test sample size | Conductor cross-section ≤ 25 mm² |
| Number of wrapping turns | 3 turns |
| Wrapping mandrel material | Stainless steel |
| Fixture and support material | Stainless steel |
Wrapping Mandrel Diameters
| Available Diameters |
|---|
| Φ6, 8, 10, 12, 15, 18, 20, 25, 30, 32, 40, 50, 58, 62.5, 74, 82.5, 90, 98.5 mm |
Load Weights
| Load Type | Specification |
|---|---|
| Standard weights | 0.5 kg, 2.5 kg, 5 kg, 8 kg, 10 kg |
| Combination weights | 10 kg × 4 pcs |
| Large load testing | 30 kg load uses two specimens per test group |
Electric Control Unit
| Item | Specification |
|---|---|
| Drive motor | Servo motor, 1500 W |
| Control system | PLC + Touch Screen |
| Wrapping speed | Max. 130 rpm, programmable |
| Wrapping cycles | Programmable via touch screen |
Features
(1) Servo motor drive ensures stable torque output and accurate wrapping speed control.
(2) PLC and touch screen control system allows precise setting of wrapping speed and wrapping cycles.
(3) Stainless steel mandrels and fixtures provide excellent durability and corrosion resistance.
(4) Wide selection of mandrel diameters supports multiple international automotive standards.
(5) Stable mechanical structure ensures repeatable and reliable test results.
Accessories
(1) Main testing unit
(2) Stainless steel wrapping mandrels (multiple diameters)
(3) Standard load weight set
(4) Combination load weights
(5) PLC control cabinet with touch screen
(6) Power and signal cables
Test Procedures
(1) Place the test specimen in the low-temperature chamber and condition it according to the applicable standard.
(2) Select the appropriate wrapping mandrel diameter based on the test requirement.
(3) Install the specimen onto the fixture and apply the specified load weight.
(4) Set wrapping speed and number of turns on the touch screen control panel.
(5) Start the test and allow the specimen to complete the wrapping process.
(6) After completion, visually inspect the specimen for cracks, damage, or insulation failure.
Maintenance Information
Regularly inspect mandrels and fixtures for surface damage or wear.
Keep the servo motor and transmission components clean and free from dust.
Periodically check load weights for accuracy and integrity.
Ensure electrical connections and control components are properly secured.
Perform routine calibration according to laboratory quality requirements.
FAQ
What is this product?
It is a low-temperature wrapping test instrument used to evaluate the mechanical performance of automotive wires and cables.
What is the purpose of this tester?
It determines the resistance of wire insulation and conductor structure to cracking or damage during low-temperature wrapping.
Why is this tester important?
Low-temperature performance is critical for automotive electrical safety and long-term reliability, especially in cold environments.
Which industries is this tester suitable for?
Automotive manufacturing, automotive wiring harness suppliers, cable manufacturers, and quality inspection laboratories.
What types of products can be tested?
Round automotive wires, insulated conductors, single-core cables, and low-voltage automotive electrical cables.
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