Volsun releases its third-generation shaft grounding ring, effectively reducing costs by 10%.

Hello everyone! Today, let's take a look at Volsun and focus on their shaft grounding ring product, a solution for bearing electrocorrosion. We've invited Mr. Li, an application engineer, to provide an in-depth explanation of this product's features, technological upgrades, and market advantages.

Question 1: Mr. Li, we've seen that Volsun shaft grounding ring product line is diverse and offers flexible designs. Could you first explain the primary application scenarios for these products? Furthermore, what specific market or technical requirements are these different structural designs designed to meet?

Answer: Yes. New energy vehicle electric drive systems are evolving towards a highly complex and integrated approach. Under high-voltage and high-frequency operating conditions, motor bearings are commonly faced with a hidden yet destructive threat: electrocorrosion. This problem is not only present in automotive drive motors, but is also common in wind power, rail transit, marine propulsion, and industrial motors. Shaft grounding rings were developed to address this industry pain point.

Volsun shaft grounding ring series consists of a metal ring for support and fastening, and a conductive fiber that flexibly contacts the rotating shaft and effectively channels shaft current. Based on application scenarios and testing requirements, this product series is primarily divided into three categories:

The first category is shaft grounding rings, including full and segmented rings. These products conduct shaft current by contacting the side of the rotating shaft. They have a wide compatibility range, supporting shaft diameters from 10mm to 200-300mm, and require minimal installation space. They are our primary product.

The second category is conductive brushes, whose fibers contact the shaft surface and are particularly suitable for applications such as wind turbines.

The third category is test accessories, including test rings, test pens, and conductive holders, which fully meet various testing needs.

Question 2: I understand that Volsun shaft grounding rings have reached their third generation. I would like to discuss the key improvements achieved in this third generation compared to the previous two generations.

Answer: This is an excellent question. Product iteration and upgrades are essentially designed to better meet market demand. As previously explained, our shaft grounding rings primarily consist of a metal ring body and conductive fibers. The metal ring body is customized to the customer's size requirements, while the specifications of the conductive fibers are relatively stable. Based on this characteristic, we focused on the conductive fiber component and implemented innovative design, upgrading it to a standardized prefabricated module. Using advanced laser welding techniques, this standard module can be efficiently and precisely bonded to the customized metal ring.

This innovation brings multiple benefits: First, it enables centralized optimization and strict control of key materials and core processes; second, it simplifies the ring structure, reducing manufacturing complexity; and third, it successfully achieves the goal of a 10% overall cost reduction. Fourth, while maintaining full performance consistency with the previous generation product, we have significantly improved the level of automation in the production process, enabling rapid response to varying order volumes.

Question 3: Could you please further describe the specific market feedback and performance of Volsun shaft grounding rings?

Answer: Okay. We have established in-depth partnerships with over 60% of mainstream domestic automakers, encompassing both traditional brands and emerging car manufacturers. It's worth noting that our shaft grounding rings maintain an excellent quality record, with zero quality issues in all batches. Their reliability and durability have been proven in the market. To meet the continuously growing market demand, our sixth and seventh automated production lines are also being intensively planned and constructed. In the future, they will be able to release more production capacity and provide customers with stronger supply guarantees.