Why Choose the Derui Cable Bending Test Machine?Are intermittent failures tarnishing your brand's reputation for reliability?In the world of electronics, cables are the lifeline of every device—and th ...
Are intermittent failures tarnishing your brand's reputation for reliability?
In the world of electronics, cables are the lifeline of every device—and the most common point of failure. Whether it's a headphone cable that crackles after a few months, a charging cord that stops working, or an industrial control cable that fails on the factory floor, the cause is almost always the same: repeated flexing at the strain relief point.
Relying on basic "hand bending" tests or passing product based on visual inspection alone is a massive gamble. You simply cannot simulate years of use manually, and a single broken wire can cost you a customer for life.
We developed the Derui Cable Bending Test Machine to solve this critical quality gap. This is not just a simple cycler; it is a comprehensive Flex Life Analysis System designed to validate the durability of cables, wires, and strain reliefs under real-world conditions. We help you replace warranty claims with confidence in your product's longevity.
Here is why leading electronics manufacturers are using our bending testers to eliminate cable failures:
Time is money in both R&D and production QC. Our multi-station design allows you to test multiple cables simultaneously, building statistical significance without creating a bottleneck.
High-Throughput Validation: Test 2, 5, or even 10 cables at once, accumulating thousands of cycles in the time it takes single-station testers to do one.
Side-by-Side Comparison: Run different designs, materials, or suppliers simultaneously under identical conditions to directly compare performance.
Independent Station Control: Each station operates independently, allowing you to test different cable types or different test parameters at the same time.
| Feature | Benefit |
|---|---|
| 2 to 10 Independent Stations | Parallel testing eliminates bottlenecks in R&D and QC labs. |
| Programmable Bending Angles | Simulate everything from gentle flexing to extreme 180° folds. |
| Adjustable Test Speeds | Match the flexing frequency to real-world use patterns. |
| Individual Cycle Counters | Each station tracks its own progress, stopping automatically on failure. |
Different cables fail in different ways. Our system is designed to simulate the specific flex patterns your products face in the real world.
Left-Right (90° / 180°) Bending: The most common mode for headphone cables and charging cords, simulating the stress at the plug-junction interface.
Front-Back (Flexing) Bending: Simulates the "scrunching" stress on cables behind desks or in moving equipment.
Rotational (Torsional) Bending: For cables that twist during use, like coiled handset cords or robotic arm cables.
Adjustable Bending Radius: Critical for testing different cable gauges—a tight radius on a thick cable will fail faster, and you need to know the limit.
A machine that just bends cables is only half the solution. You need to know the exact moment of failure—and why it happened.
Conductivity Monitoring: The system continuously monitors each cable for electrical continuity. The moment a wire breaks (intermittent or complete), the test stops and records the exact cycle count.
Resistance Tracking: For high-precision testing, we monitor the resistance across the cable. A sudden spike indicates a partial break or fractured strand before complete failure.
Visual Failure Indication: Each station has a dedicated indicator light, so operators can instantly identify which cable failed and at what cycle.
In modern manufacturing, if you didn't record the test data, you didn't prove the reliability. Every test cycle is logged automatically.
Exportable Reports: Generate comprehensive PDF reports showing cycles to failure, failure mode, and test parameters.
Weibull Analysis Ready: Export data directly for statistical life analysis (Weibull curves) to predict field failure rates.
ISO & IEC Compliance: Our testing protocols are designed to align with global standards for cable and connector durability.
Precision in cable testing requires a machine that bends consistently, millions of times, without variation. The Derui Cable Bending Tester is engineered for this demanding task.
Our machine provides the repeatable, reliable data needed for critical design decisions and production QC.
| Feature | Specification |
|---|---|
| Test Stations | 2 / 4 / 5 / 6 / 10 (Model dependent) |
| Bending Angle | 0° – ±180° (Programmable) |
| Test Speed | 10 – 60 cycles/min (adjustable) |
| Bending Radius | 25mm – 100mm (adjustable via fixtures) |
| Load Weight | 50g – 1000g (for hanging weight method) |
| Failure Detection | Continuity break / Resistance spike |
| Counter Range | 0 – 999,999 cycles (auto-stop on failure) |
| Dimensions | 800mm (L) x 500mm (W) x 600mm (H) (varies by station count) |
| Power Supply | AC 110V/220V, 50/60Hz |
Versatility is key for testing the wide variety of cables used in modern electronics.
Cable Types: Headphone cables, USB cables, HDMI, power cords, coaxial cables, industrial control wires.
Connector Styles: Straight plugs, right-angle plugs, molded strain reliefs, overmolded connectors.
Test Modes: Left-right bending, front-back flexing, rotational twisting.
Failure Criteria: Complete break (open circuit), intermittent break (momentary open), resistance increase (partial strand break).
Integrating precise cable durability validation into your product development or QC process is simple.
Step 1: Mounting & Setup
The operator secures the cable into the adjustable fixture. The connector end is clamped rigidly, simulating the device connection point. The cable itself is attached to the bending arm, which will swing back and forth. A weight is attached to the free end to maintain consistent tension (optional, depending on standard).
Step 2: Parameter Programming
Using the intuitive touchscreen interface, the operator defines the test profile:
Test Mode: Left-Right / Front-Back / Rotational.
Parameters: Bending angle, test speed, target cycles (e.g., 10,000 cycles).
Failure Criteria: Continuity check enabled / Resistance threshold.
Data Logging: Select automatic stop on failure and report generation.
Step 3: Automated Testing
The system initiates the test. The servo motor drives the bending arm through its programmed arc at the set speed. The continuity monitor constantly checks the cable's electrical path. The touchscreen displays live cycle count and status for each station.
Step 4: Failure Analysis & Reporting
The test continues until either the target cycles are reached or a failure occurs.
Pass: The cable survives the target cycles without any continuity interruption. A "PASS" certificate is generated with the final cycle count.
Fail: The moment a break is detected, the specific station stops automatically. The screen highlights the failed station and the exact cycle count at failure. A "FAIL" report is generated for analysis.
Any manufacturer where cable reliability directly impacts product reputation and safety.
Consumer Electronics: Testing headphone cables, charging cords, and data transfer cables for smartphones, laptops, and audio equipment.
Automotive: Validating wiring harnesses, sensor cables, and infotainment system connections that must survive years of vibration and flexing.
Medical Devices: Ensuring patient monitoring cables, probe wires, and surgical instrument cords meet strict reliability standards.
Industrial Automation: Testing robotic arm cables, drag chain cables, and control wires that flex continuously in manufacturing environments.
Aerospace & Defense: Validating mission-critical cabling that cannot fail in flight or field operations.
IEC 60332: Tests for electrical and optical fibre cables.
IEC 60794: Optical fibre cable bending tests.
UL 1581: Reference standard for electrical wires, cables, and flexible cords.
EIA/TIA-455: Standard test procedures for fibre optic cables (FOTP).
ISO 6722: Road vehicles – 60V and 600V single-core cables.
What is the difference between a bending test and a flex test?
While often used interchangeably, they can refer to different modes. A bending test typically involves bending the cable at a specific point (like the strain relief) to a defined angle. A flex test often implies a more complex motion, like rolling flex or reverse flex over a mandrel. Our machine can perform both, depending on the fixture and programming. We recommend clarifying which standard you need to meet.
What causes cables to fail in bending tests?
The most common failure is conductor fatigue. Copper strands work-harden and eventually fracture under repeated stress. Other failures include insulation breakdown (cracking), shield separation (in coaxial cables), and strain relief detachment (the molded boot pulling away from the connector). Our machine detects the electrical failure, and visual inspection after the test identifies the mechanical mode.
What weight should I use for the hanging load?
The appropriate weight depends on the cable gauge and the relevant testing standard. Light cables (e.g., headphone wires) typically use 50g-100g. Heavier power cords may use 500g or more. The weight ensures consistent tension and contact during bending. We provide a range of calibration weights and can advise based on your specific standard (e.g., IEC 60268-7 for headphones).
Can this test cables with right-angle connectors?
Yes. The fixturing is adjustable to accommodate both straight and right-angle connectors. We provide specialized clamps that hold the connector securely without damaging the housing, ensuring the stress is correctly applied to the cable and strain relief.
How do I know if a partial break occurred during the test?
Our standard model detects complete breaks (open circuits). For detecting partial breaks (where some strands remain intact but resistance increases), we offer the Resistance Monitoring Option. This continuously measures the cable's resistance; a sudden spike of 10% or more indicates strand fractures before complete failure, providing a more sensitive measure of cable health.
Does Derui provide calibration services?
Absolutely. Every machine ships with a traceable calibration certificate for the cycle counter and, if equipped, the continuity monitor. We also offer annual re-calibration services to ensure your test data remains accurate and compliant.
