How to Scientifically Select a Charging Gun Cable for Bend Testing: A Buying Guide from Standards to Real-World Applications

2026-05-27

How to Scientifically Select a Charging Gun Cable for Bend Testing: A Buying Guide from Standards to Real-World Applications

As a critical component of new‑energy vehicle charging systems, the charging gun’s cable is subjected to frequent mechanical stresses—such as repeated bending and dragging—during everyday use. The cable’s bend‑life performance directly impacts the charging gun’s service life and safety. Consequently, manufacturers must rely on specialized bending‑test equipment to conduct systematic performance evaluations of charging‑gun cables throughout the R&D, design, and quality‑control stages. With a wide array of testing devices available on the market, selecting the most appropriate solution has become a key concern for industry players.

I. Clarify Testing Requirements: Conformance to Standards is the Primary Prerequisite

When selecting equipment for the bending test of charging‑gun cables, it is first necessary to clarify the applicable test standards. According to GB/T 20234.1‑2023, Clause 6.2.10.4; GB/T 11918.1‑2014, Clause 24.4; and IEC 62196‑1:2022, Clause 26.4, charging‑gun cables must undergo durability testing under specified bending angles, speeds, and load conditions. When choosing testing equipment, manufacturers should prioritize verifying that the machine complies with these standard requirements, including an adjustable bending angle range (e.g., ±0° to 180°), a configurable test rate (e.g., 0–80 cycles per minute), and a counter capable of setting the number of test cycles (e.g., 0–9,999,999).

Taking the charging gun bending life testing machine developed by ZHONGJIA EQUIPMENT as an example, this equipment features an imported 7-inch true-color LCD touch screen and a Panasonic PLC control system, enabling precise setting of test parameters. Its bending rotation angle supports presetting between 0° and 180° in both left and right directions, while the test speed ranges from 0 to 80 cycles per minute. The counter is equipped with a power-off memory function and can be preset for 0 to 9,999,999 cycles, fully meeting the testing requirements of both international and domestic standards. This high degree of compliance with standards helps companies ensure the accuracy of their product testing results and Authority Sex.

II. Attention Core Technical Specifications: Precision Simulate real-world usage scenarios

In addition to standard compliance, the testing machine’s Core Technical specifications directly determine the accuracy and reliability of test results. When selecting equipment, companies should pay particular attention to the following key dimensions:

1. Load‑simulation capability: In real‑world applications, charging‑gun cables are often subjected to a certain gravitational load. A professional bending tester should be equipped with a weight‑combination system that can simulate various load conditions ranging from 20 N to 180 N. Zhongjia Testing’s equipment, by flexibly configuring the weights, can accurately replicate the stress experienced by a charging gun under different suspension states, thereby enabling a more precise assessment of the cable’s bend‑resistance performance.
2. Load‑bearing test capability: In certain scenarios, bending tests must be conducted under energized conditions to evaluate the cable’s overall performance under electrical load. Zhongjia Testing’s bending‑life testing machine is equipped with a dedicated load‑connection port, capable of handling currents exceeding 800 A, thereby supporting bent‑under‑load testing. This design enables simulation of the cable’s bending and deformation states during actual charging operations, providing a more… Comprehensive It reflects the product’s durability.
3. Automatic shutdown upon wire breakage: During prolonged bending tests, cables may fail due to fatigue. A testing machine equipped with intelligent judgment capabilities can automatically stop operation and record the number of cycles when the specimen bends to a point where electrical conductivity is lost, enabling enterprises to accurately determine the cable’s end-of-life. This feature not only enhances testing efficiency but also eliminates the risk of oversight inherent in manual monitoring.

III. Assessment of the Equipment’s Scope of Application and Scalability

Charging gun products come in a wide variety, with cable diameters ranging from 5 mm to 70 mm. When selecting a bending test machine, companies should verify that the equipment’s testing‑cable range can accommodate the requirements of their product line. Zhongjia Testing’s machines support cables with diameters from 5 to 70 mm and feature a single‑station design, equipped with a servo motor–turbo gearbox powertrain to ensure stable driving force and precise angular control across various cable specifications.

Furthermore, as charging‑gun technology continues to evolve, companies may encounter new standards or testing requirements. Choosing equipment with flexible, adjustable parameters and upgradable software can help accommodate future testing needs. Zhongjia Testing’s instruments feature a PLC‑based programmable controller and a touch‑screen interface, enabling users to freely set the test bending angle, speed, and number of cycles, while offering excellent scalability and adaptability.

IV. Considerations Regarding Automation Level and Data Management Capabilities

In mass production and quality‑control settings, the level of automation and data‑management capabilities of testing equipment are of paramount importance. Manual operation is not only inefficient but also prone to human error. Modern bending test machines should possess the following features:

1. Automated testing workflow: From specimen clamping and parameter setup to test execution and data recording, fully automated operations significantly enhance testing efficiency. Zhongjia Testing’s equipment is driven by servo motors and integrated with an intelligent PLC control system, enabling unattended, continuous testing. Significant Reduce labor costs.
2. Data Traceability and Report Generation: For enterprises requiring quality traceability, the equipment should support automatic storage of test data and automated report generation. Although Zhongjia Testing’s bending‑life testing machines primarily focus on mechanical performance testing, other product lines—such as the charging‑gun comprehensive testing system—have already implemented QR‑code scanning, automatic data saving, and integration with MES systems, demonstrating the company’s technological expertise in data management.

V. Supplier’s Industry Experience and After-Sales Service

Equipment selection involves not only comparing product performance; the supplier’s industry experience and after-sales service capabilities are equally important. ZHONGJIA EQUIPMENT specializes in the testing of charging connectors, with a product portfolio that covers functional testing, safety compliance testing, durability testing, temperature rise testing, and more. Addressing pain points in the charging gun industry—such as low testing efficiency, difficult data traceability, and the need for multi-standard compatibility—ZHONGJIA EQUIPMENT offers a range of automated, intelligent testing solutions. This deep industry expertise enables ZHONGJIA EQUIPMENT to provide customers with more tailored selection recommendations and technical support.

In addition, the timeliness and professionalism of after-sales service are also key factors to consider when selecting equipment. Over time, devices may require calibration, maintenance, or upgrades; the supplier’s ability to deliver prompt responses and expert support directly impacts a company’s testing efficiency and the longevity of its equipment.

VI. Comprehensive Cost-Benefit Analysis

Equipment selection's most The ultimate goal is to optimize cost-effectiveness while meeting testing requirements. Enterprises must comprehensively evaluate equipment procurement costs, operational and maintenance expenses, and long-term value for money. Although high-precision, highly automated equipment entails a higher upfront investment, it can deliver superior returns over time by boosting testing efficiency, reducing labor costs, and minimizing measurement errors.

Zhongjia Testing’s charging gun bending life testing machine features a modular design, Core Components such as servo motors, PLC controllers, and touch screens are all sourced from reputable brands, ensuring the equipment’s stability and durability. Meanwhile, the single‑station design meets testing requirements while keeping overall costs under control, making it well suited for small and medium-sized enterprises and R&D laboratories.

Conclusion

The scientific selection of a charging gun cable bending tester requires companies to consider compliance with relevant standards, Core A comprehensive evaluation is conducted across multiple dimensions, including technical specifications, application scope, level of automation, supplier experience, and cost-effectiveness. Leveraging its deep expertise in the field of charging connector testing, ZHONGJIA EQUIPMENT has provided customers with a bending‑life test solution that meets both international and domestic standards, features complete technical specifications, and boasts a high degree of automation. By selecting the appropriate testing equipment, companies can effectively enhance their product quality control, ensure the safety and reliability of charging guns in real-world applications, and thereby secure a favorable position in the fiercely competitive market.