China's photovoltaic industry has achieved an all-round fault leading edge in the world. Behind this brilliant achievement, it is not only the result of the efforts of photovoltaic manufacturing enterprises, but also the contribution of upstream and downstream photovoltaic equipment enterprises.
On June 4, at the SNEC Photovoltaic Exhibition in 2026, the Digital New Energy DataBM. Com interviewed Guo Xiaowen, sales director of Hangzhou Jiuzheng Technology Co., Ltd., a vacuum equipment R & D and manufacturing enterprise. During the
exchange, he jokingly called Jiuzheng technology a "screw" in the photovoltaic industry chain. However, as the supporting equipment of photovoltaic industry, the seemingly insignificant "screw" also plays a vital role in the anti-risk ability of the whole production line.
"Technology follows the process, products follow the times"
Jiuzheng technology deep ploughing vacuum equipment technology originated in 2013, after five years of technical polishing and process verification, was formally established in Hangzhou in 2018. Over the past 13 years, the company has focused on high-end precision manufacturing links, focusing on the R & D and production of dry oil-free vacuum equipment products and systems, providing a stable vacuum environment for the rigorous process. At present, the products of Jiuzheng technology have been widely used in photovoltaic, lithium-ion new energy and other high-precision manufacturing industries.
At the SNEC Photovoltaic Exhibition, Jiuzheng Technology brought full-matrix dry vacuum products, including traditional screw pumps, screw pumps, enhanced screw pumps, composite claw pumps and multi-stage screw pumps.
Especially for the photovoltaic industry, Jiuzheng technology also brings specialized products and solutions. For example, for the mainstream N-type polysilicon crystal growth process in the photovoltaic industry, Jiuzheng has brought the third generation solution "Enhanced Roots Unit" to adapt to the oxygen reduction route of low furnace pressure and high argon, and at the same time, compared with traditional equipment, it can achieve the effect of reducing power consumption by 30%.
Over the years, with the core concept of "technology follows the process, products follow the times", Jiuzheng technology closely follows the development trend and core needs of the photovoltaic industry, and synchronously follows up the upgrading and iteration of products and processes. "At present, Jiuzheng technology has laid out the whole process covering the whole photovoltaic industry chain from crystal pulling to coating to lamination." The
photovoltaic industry has always been known for its extreme innovation and efficient iteration, especially in the past five years, the industry's battery technology has rapidly switched from P-type PERC to N-type TOPCON, BC and HJT. The products carried by each process change and technology upgrade put forward more stringent requirements for the production supporting vacuum system:
"In fact, each iteration of photovoltaic process is an extreme challenge for the vacuum system, which requires greater pumping speed, higher vacuum degree and stronger dust handling capacity."
Understandably, compared with other industries, photovoltaic product manufacturing belongs to high-precision continuous production mode industry, with long industrial chain and complex working conditions, requiring 24-hour continuous production. Once production is interrupted, enterprises may face huge economic losses, so the requirements for vacuum equipment system are more stringent.
Guo Xiaowen cited the application of vacuum equipment in various process links as an example:
once the vacuum pump in the crystal growth process breaks down, not only the silicon material in the whole furnace will be oxidized and scrapped, but also the crucible will be scrapped and the man-hour will be lost; The dust load in the coating process is large, and the vacuum pump body is easy to get stuck due to dust accumulation, which may lead to the shutdown of the whole production line; However, in the component lamination process, the jellies that are easy to produce are very easy to adhere to the rotor of the vacuum equipment, and long-term accumulation will lead to a smaller gap between the rotor and the housing of the vacuum pump, resulting in the problem of scraping and jamming.
Guo Xiaowen jokingly calls the vacuum pump a "screw" in the photovoltaic production process, but this seemingly insignificant "screw" plays a vital role in the stable and safe operation of the entire photovoltaic production line.
At present, with the power generation efficiency of crystalline silicon batteries gradually becoming the "ceiling", perovskite and perovskite-crystalline silicon tandem battery technology with higher development space has emerged and gradually risen, which also puts forward new requirements for vacuum equipment.
Anticipating the development trend of the photovoltaic industry, Jiuzheng technology, relying on 40% of the R & D team, has done a good job of "advance" for the development of the next generation of new photovoltaic technology, "Our products have covered all the dry vacuum pumps in the world, and the structure has been delivered in batches. It can deal with the upgrade and adjustment of photovoltaic technology in an all-round way and give the best solution in the shortest time.
In view of the future large cavity fast rhythm process, our single pump can reach 2500 cubic meters per hour, and the unit can reach 12000 cubic meters per hour.
"We are equipment manufacturers who know more about photovoltaic production technology." Speaking of these, Guo Xiaowen is very proud.
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