In the fields of precision optical testing, semiconductor manufacturing, photovoltaic equipment, and industrial automation, achieving stable displacement with heavy load, high precision, and long stroke within a compact space is the core demand for equipment integration and performance breakthrough. Sefan Optoelectronics has been deeply engaged in the field of precision opto-mechatronics for 22 years. Its 7STA20 rail-intricate screw slide stage, with the core advantages of "rail-intricate integration, high rigidity for heavy load, micrometer-level precision, and minimalist integration", breaks through the traditional slide stage's "large volume, weak rigidity, and difficult integration" problems, providing a compact heavy-load precision displacement solution for high-end research and industrial scenarios.

As the flagship product of Sefan Optoelectronics' integrated slide stage, 7STA20 focuses on the internal embedded structure, high rigidity for heavy load, high precision positioning, and multiple stroke options. The stroke range covers 100mm - 500mm, perfectly adapting to the long stroke displacement requirements of compact equipment. The product adopts an integrated design of the track and the base, embedding the linear guide rail inside the high-strength aluminum alloy base, combined with precise grinding technology, with structural rigidity far exceeding that of traditional split-type slide stages. It fundamentally suppresses deformation and vibration under heavy load, ensuring smooth and stable movement without jamming or gaps. Its repeat positioning accuracy is less than 0.005mm, and the resolution can reach 0.00125mm (8 subdivisions). Even under full load operation, it can stably achieve micrometer-level precise positioning, meeting the requirements of high-precision scenarios such as spectral scanning, fiber coupling, and semiconductor detection.

The core transmission and bearing design creates the core strength of heavy-load stability and long-term durability. 7STA20 uses imported precision ball screws + pre-tightening anti-clearance nuts combination, combined with both ends fixed support structure, effectively preventing screw loosening, suitable for high-speed reciprocating motion conditions, with high transmission efficiency and low operating noise (< 50dB); the guide rail uses high-rigidity linear guide rails, with pre-tightening force to eliminate gaps, smooth movement, good linearity, strong bearing capacity, with a center load capacity of up to 20kg, capable of easily carrying heavy components such as optical lenses, integrating spheres, and spectral instrument probes, supporting single-axis heavy-load or multi-axis combination to build multi-dimensional displacement platforms. The body undergoes strict aging treatment and hard anodizing, with a high surface hardness and strong wear resistance, capable of adapting to long-term continuous operation in laboratories and high-frequency reciprocating operations in industrial production lines, with a service life far exceeding the industry average level.

Minimalist integration and intelligent control, balancing automation compatibility and operational convenience. 7STA20 adopts an ultra-thin compact design, with a width of only 80mm and a low height, significantly saving installation space, suitable for integration into compact equipment; it is equipped with 42/57 stepper motors, combined with standard RS232/DB9 interfaces, can seamlessly adapt to Sefan 7SC series motion controllers, supporting synchronous linkage of multiple devices, programming positioning, and the establishment of automated testing processes, plug-and-play, and easy integration; the motor and screw are connected through imported elastic coupling, synchronous transmission, and no loosening during long-term operation; both ends are equipped with zero position and limit switches, supporting rapid zero return positioning and preventing overstroke misoperation, protecting equipment and sample safety; the platform and base are distributed with standard pitch installation holes, can be directly fixed on the optical platform, and can also be flexibly combined with other displacement stages to quickly build multi-dimensional adjustment frames, adapting to complex optical paths and equipment integration requirements.

Full scene adaptation, covering the entire fields of research innovation and industrial precision manufacturing. In the research field, it is compatible with universities' material characterization, optical experiments, and spectral analysis, can be used in combination with fiber spectrometers and solar light simulators, to build an opto-mechatronics integrated testing platform; in the photovoltaic and optical field, it is used for precise displacement of solar cell samples, alignment of optical components, and optical path calibration, ensuring accurate and reliable test data; in the semiconductor and microelectronics field, it meets the positioning requirements for chip detection, device assembly, and precise bonding, protecting product yield with heavy-load high-precision; In the field of industrial automation, the displacement module designed for precise processing and automatic detection equipment supports customized upgrades for servo motors and enables high-speed and heavy-load operation.

Safan Optoelectronics, as a leading brand of domestic precision optical equipment, has always adhered to the concept of "independent research and development of core technologies, meticulous manufacturing, and service first". The 7STA20 rail-intricate screw slide stage continues the brand's high reliability and high compatibility product genes. The core components are all self-developed, with performance comparable to imported similar products, a 40% improvement in cost performance, and it provides a 4-hour rapid response local after-sales service and a 3-year core component warranty service, significantly reducing the user's usage and maintenance costs.

Embedded with cast rigidity, precise control range; meticulous construction for quality, stable to gain trust. Safan Optoelectronics' 7STA20 rail-intricate screw slide stage, with its integrated structure within the rail, micro-level high-precision positioning, 20kg heavy-load capacity, compact and minimalist integration, has become the preferred equipment in the field of compact heavy-load precision displacement, providing solid and reliable displacement support for scientific research innovation and industrial precision manufacturing, helping users break through technical boundaries in fields such as high-end optics, semiconductors, and photovoltaics, and achieving efficient and precise displacement freedom.