With the transformation of the global energy structure and the increasing awareness of environmental protection, the photovoltaic industry, as an important pillar of sustainable development, has become increasingly prominent in the global energy market. China is a major player in the photovoltaic industry and holds an important position in the global market. Upstream silicon wafer manufacturing, midstream solar cell manufacturing, and downstream assembly manufacturing account for over 70% of the global market share. Guided by the dual carbon target, renewable energy represented by photovoltaics is continuously favored. With the continuous upgrading of technology, the precision requirements for production processes and related equipment are constantly increasing. Improving the production efficiency and product quality of the photovoltaic industry, and reducing production costs, are the core tasks driving the development of the industry.

As a supplier with years of experience in the field of sensors, integrating research and development, production, sales, and application, we are committed to finding suitable sensor solutions for the photovoltaic industry. In the production of photovoltaic cells and modules, it helps industry enterprises accelerate their transformation towards intelligent manufacturing upgrading.

Is there any detection of silicon wafers
In the production process of photovoltaic cells, traditional inductive proximity switches cannot detect them due to their inherent physical characteristics. At the same time, before the silicon wafer is flanked, it has high brightness and high reflectivity characteristics. After being flanked, it absorbs light, which makes conventional photoelectric sensors unable to detect stably to a certain extent. Therefore, capacitive sensors have become the "ideal choice" for completing detection tasks in photovoltaic cell production equipment.
The CSF series of flat capacitive proximity sensors, due to its flat shape design, not only effectively saves installation space, but also can stably and effectively detect the position and spacing of silicon wafers, achieving the detection of silicon wafer presence and absence, thereby ensuring the stable transmission of silicon wafers in the production process and improving production efficiency.

Single and double sheet detection of silicon wafers
The thickness of photovoltaic silicon wafers is thin (usually only 0.18mm), the material is brittle, and prone to breakage. The USDB series ultrasonic single and double sheet detection sensor adopts non-contact detection, which can output the single and double sheet status of the detection silicon wafer simply, stably, and reliably without damaging the silicon wafer.

Silicon wafer flower basket inspection
Silicon wafer flower basket is a device used to carry single crystal silicon and polycrystalline silicon wafers and complete the conversion, cleaning, and drying processes of silicon wafers. Effective detection of the flower basket is crucial for the next steps, such as automatic loading of silicon wafers into graphite boats after etching. The LS200 series square photoelectric sensor can achieve precise positioning and detection of flower baskets loaded with silicon wafers.

Silicon wafer grasping recognition
In fully automatic wafer insertion machine equipment, it is crucial to identify the effective grasping of silicon wafers. The CS series cylindrical capacitive proximity sensor can stably and reliably detect the grasping of silicon wafers.

Trigger the flower basket lifting mechanism
The CS series cylindrical capacitive proximity sensor detects the position of the tongue on the silicon wafer and sends a signal to trigger the upward movement of the basket lifting structure, completing the insertion of the silicon wafer and achieving the upward movement of the basket lifting structure in silicon wafer production.

Regional security protection
In the photovoltaic production process, in order to prevent personnel from accidentally entering the equipment working area and causing injury during the process of mechanical arm grasping silicon wafers, the safety light curtain sensors H2EL and H2TL series, as well as the safety door lock switch SDS series, have reliable safety and can be selected and used according to user needs, effectively achieving regional safety protection.

Realize automatic loading and unloading of materials
Install obstacle avoidance laser scanner RLD-B series on AGV to achieve automatic handling and loading/unloading in silicon wafer production.
Driven by both industry demand and favorable policies, the photovoltaic industry has entered the fast lane of development. As a photovoltaic equipment industry chain enterprise, we will follow the trend of technological development and continuously introduce new equipment products that are suitable for the industry and market. This will comprehensively help promote technological innovation in the photovoltaic industry and make positive contributions to achieving sustainable development and environmental protection.