“Every meter of cable leaving our factory has gone through 32 strict quality inspection procedures.” This is not just a slogan for our company, but a firm promise we make to every customer, and a concrete practice we implement in every link of production. We deeply understand that for power cables—products that are closely related to the safety of industrial production and daily life—quality is not only a guarantee of brand reputation but also a responsibility to customers. To turn this promise into a tangible reality, we have spared no effort in building a comprehensive quality management system that covers the entire product lifecycle, from the initial R&D and raw material purchasing to the middle production and testing, and finally to after-sales service. This system is like an invisible “quality shield,” strictly guarding every meter of cable we produce, ensuring that each product delivered to customers is of high reliability, durability, and can also be provided at a competitive market price, achieving a perfect balance between quality and cost.
In the production process, we have always adhered to the concept of “technology-driven quality improvement” and continuously introduced advanced automatic production equipment to minimize errors caused by manual operations. For example, in the cable cutting link, we use imported automatic cutting machines with an accuracy of up to ±0.1mm. These machines can automatically adjust the cutting length according to the production order requirements, avoiding the length deviation caused by manual measurement and cutting. Compared with traditional manual operations, the error rate of automatic cutting has been reduced by more than 90%, ensuring that each section of cable meets the precise length standards required by customers. In the crimping process of plug terminals, we have also equipped precision crimping equipment with real-time pressure monitoring functions. The equipment can automatically detect the crimping pressure during operation and adjust it in real time according to the material characteristics of different terminals. If the pressure exceeds or is lower than the set standard range, the equipment will immediately stop running and send an alarm, preventing unqualified crimping that may lead to poor contact or even terminal falling off during use. In addition, we have also introduced automatic winding and packaging machines, which not only improve the efficiency of product packaging but also ensure that the winding tightness and packaging appearance of each roll of cable are consistent, enhancing the overall quality sense of the product.
Raw material quality is the foundation of product quality, and we have always attached great importance to the control of raw material purchasing. We have established long-term and stable cooperative relationships with more than 20 high-quality raw material suppliers at home and abroad, including well-known copper material manufacturers and insulating rubber producers. Before establishing a cooperative relationship with each supplier, we will conduct a comprehensive on-site inspection of their production scale, quality control system, and product certification to ensure that they have the ability to provide stable and high-quality raw materials. For core materials such as copper cores and insulating rubber that directly affect the performance of power cables, we have implemented a strict “full inspection upon entry” policy. Every batch of copper cores purchased will be sampled and tested for conductivity, tensile strength, and elongation at break. Only when the test results meet the national standard GB/T 3956-2008 and our internal higher-quality standards can they be put into the warehouse for use. For insulating rubber, we not only test its insulation resistance and voltage withstand performance but also conduct aging resistance tests. We place the rubber samples in a high-temperature aging box at 100℃ for 72 hours and then test their performance again to ensure that the insulating rubber can maintain good insulation performance even in long-term high-temperature environments. For auxiliary materials such as sheaths and fillers, we also conduct random inspections according to a certain proportion to prevent substandard materials from entering the production line and affecting the overall quality of the cables.
To further verify the performance of our products in real-world usage scenarios, we have invested more than 5 million yuan to build a professional testing laboratory with international advanced standards. This laboratory covers an area of more than 300 square meters and is equipped with a variety of professional testing equipment that can simulate various harsh usage environments. For example, in the high-temperature resistance test, we use a high-temperature test chamber that can reach a maximum temperature of 300℃. We place the cable samples in the chamber and maintain a constant high temperature for a specified time, then test their insulation performance and mechanical strength to verify whether the cables can work normally in high-temperature environments such as industrial workshops and engine compartments. In the high-humidity resistance test, we use a constant temperature and humidity chamber to simulate a high-humidity environment with a relative humidity of 95% and a temperature of 40℃. After the cable samples are placed in the chamber for a certain period, we test their insulation resistance to ensure that the cables will not have insulation failure due to moisture absorption in humid environments such as bathrooms and basements. In addition, we also have a frequent bending test machine that can simulate the repeated bending of cables during use. The machine can bend the cable samples back and forth at a specified angle and frequency, and record the number of bends until the cable is damaged. Through this test, we can accurately evaluate the service life of the cables in scenarios where they are frequently moved, such as portable electrical appliances and mechanical equipment. A large amount of test data shows that the average service life of our power cables is more than 8 years, which is 3-4 years longer than the industry average service life of 4-5 years. This excellent performance has won high recognition from customers in various industries.
While strictly controlling product quality, we also pay attention to cost control to provide customers with high-quality products at competitive prices. We achieve cost optimization not by lowering quality standards, but by improving production efficiency and optimizing the supply chain. For example, through the introduction of automatic production equipment, our production efficiency has been increased by more than 40%, which reduces the unit labor cost of products. By establishing long-term cooperative relationships with suppliers, we can obtain more favorable purchase prices for raw materials, and at the same time, reduce the risk of raw material price fluctuations. In addition, we also conduct regular analysis and optimization of the production process to reduce material waste. For example, in the cable stranding process, we have optimized the stranding parameters to reduce the loss of copper cores, and the material utilization rate has been increased from 95% to 98%. “Quality is the lifeline of our company. We are willing to invest more in quality rather than lower our standards to cut costs,” said the person in charge of our quality management department. He further explained that in the short term, increasing investment in quality may increase the production cost of products, but in the long run, high-quality products can reduce after-sales maintenance costs, improve customer satisfaction and repurchase rates, and bring more long-term benefits to the company. For example, due to the high quality of our products, the after-sales complaint rate has been maintained below 0.5% for consecutive years, which is much lower than the industry average complaint rate of 3%. This not only saves a lot of after-sales service costs but also helps us establish a good brand image in the market.
Our comprehensive quality management system also includes a perfect after-sales service quality tracking mechanism. After the products are delivered to customers, we will regularly conduct follow-up visits to understand the usage status of the cables and collect customer feedback on product quality. If customers encounter quality problems during use, our after-sales service team will arrive at the site within the agreed time to conduct inspections and analyses. We will trace the root cause of the problem through the product batch number, including checking the raw material inspection records of the batch, production process parameters, and factory inspection reports. If the problem is caused by product quality, we will unconditionally provide replacement or maintenance services; if the problem is caused by improper use by customers, we will provide professional guidance to help customers solve the problem. Through this closed-loop quality management mechanism, we can continuously find problems in the quality management system and make improvements, thus promoting the continuous improvement of product quality.
In the context of increasingly fierce market competition and higher customer requirements for product quality, our company will continue to uphold the concept of “quality first,” further improve the comprehensive quality management system, and increase investment in R&D and testing equipment. We plan to introduce more advanced testing equipment in the next year, such as a cable fire resistance test machine and a low-temperature impact test machine, to further expand the scope of product testing and improve the accuracy of test results. At the same time, we will also strengthen the training of quality management personnel, improve their professional quality and quality awareness, and ensure that every link of quality management is implemented in place. We firmly believe that with strict quality control and continuous quality improvement, our power cables will continue to win the trust and recognition of more global customers and make greater contributions to the development of the global power cable industry.
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