I am very glad that we met Guo Xiaowen, general manager of Hangzhou Jiuzheng Technology Co., Ltd. at the SNEC exhibition in 2026. Hello, General
Manager Guo!
Hello, I am Guo Xiaowen, the head of Hangzhou Jiuzheng Technology Marketing Department. What core products
did Jiuzheng Technology bring to the SNEC exhibition? Compared with similar products, what are your advantages?
As a photovoltaic one-stop service manufacturer, our products on display are relatively rich. From our traditional screw pumps and magnetic screw pumps, we also bring enhanced screw pumps, compound claw pumps and multi-stage screw pumps. In view of the current mainstream N-type crystal growth process, we have launched the third generation of oxygen reduction route vacuum solution. It is suitable for the current oxygen reduction route of large argon and low furnace pressure, and compared with traditional equipment, it can reduce the power consumption by 30%, which can reduce the cost and increase the efficiency for the current photovoltaic enterprises .
Compared with other industries, what are the special requirements of photovoltaic production environment?
Compared with other industries, photovoltaic requires more vacuum degree, and its process iteration will be faster. At the same time, it requires the ability to deal with dust, as well as the cost performance of equipment and the cost of operation and maintenance, which will be more extreme. We launch different products according to different process requirements. For example, in the process of crystal pulling, the requirements for the stability of vacuum pump operation are very stringent. Because every time the equipment breaks down in the process of crystal growth, it is a huge loss for the manufacturer, which will lead to the scrap of a furnace charge, resulting in oxidation, all crucibles may be scrapped, and a lot of working hours will be wasted. For example, in our coating process, the amount of dust will be particularly large. If the equipment is stuck, it may cause the entire plant line to stop. Therefore, different processes are different tests for vacuum pumps. We not only need the stable operation of the pump, but also need to deal with more dust. Including the later process of photovoltaic, such as lamination, there are actually a lot of jelly that may be attached to the rotor of the vacuum pump. So we also have a device for the lamination process that can handle these gels and prevent them from condensing on the rotor.
In this way, the vacuum pump is quite important to the photovoltaic production process.
Yes, although the vacuum pump is a screw in the whole photovoltaic production process, the effect of this screw is still very important. Because we have to provide a vacuum environment for every production link, once the vacuum environment is destroyed, the whole process will be stopped. If the vacuum pump breaks down, the whole production line may be shut down.
The photovoltaic industry is also constantly iterating, from TOPCon to BC to perovskite , to the future stack. With the iteration of photovoltaic products and technologies, what will be the future layout of Jiuzheng technology?
Because I belong to sales, I will be in the first-line photovoltaic factory for a long time, and I also deeply feel that the industry is in pain, and the process is broken in iteration. From PERC to TOPCon, BC, HJT, as well as the silicon-based stack of perovskite and perovskite in the future, in fact, every process exploration is an extreme challenge for the vacuum system, which requires greater pumping speed, higher vacuum degree and stronger dust handling capacity. Every iteration of the process is an extreme challenge for vacuum pumps. As a leading supplier in the photovoltaic industry, we have always maintained the core concept of technology following the process and products following the times. At present, we have laid out the whole photovoltaic industry chain, from crystal pulling to coating to laminating, as well as the track of new technologies in the future. Like the perovskite track, as well as the perovskite silicon-based stack, in fact, they will require more and more pumping speed for vacuum. For us, compared with other manufacturers, we do the screw pump, now the largest screw pump has been able to achieve a single screw 2500 cubic meters, the unit can achieve about 12000 cubic meters per hour. We will predict in advance, because our R & D team will be relatively large, accounting for 40% of the company. We are also equipment manufacturers who understand the production process. We also understand the dependence on vacuum in the process, and do these layouts in advance.
Now the enterprises in the main industrial chain are laying out overseas and building factories. As an equipment supplier, do you have any plans in this regard?
At present, we have made some after-sales sites in the United States, the Middle East, Southeast Asia and Turkey. At the same time, we have obtained CE certification, SEMI certification, including UL certification in the United States, all of which have been obtained. We can achieve 48-hour personnel presence in overseas areas. If it is domestic, maybe our personnel will be more timely. Basically, it can take two to four hours for people to arrive at the scene.
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