In optical precision alignment, micro-area spectroscopy testing, small sample scanning, and internal integration scenarios of equipment, many optical paths have compact spaces and large-sized translation stages are difficult to install. Ordinary small sliding stages often have problems such as large backlash, insufficient rigidity, and poor positioning repeatability. The Sefan Optoelectronics 7STA02B series of electric translation stages, a compact precision linear displacement platform, relies on a precision ball screw + linear guide rail structure to balance positioning accuracy and structural rigidity within a limited space. It is an ideal solution for one-dimensional precision displacement and stacking of XY platforms.
The 7STA02B series focuses on a lightweight and compact structure, with a smaller overall thickness and less occupation of the optical platform space. It is suitable for scenarios with cramped optical path layouts and internal embedded integration of equipment. Using a precision ball screw drive and a pre-pressing gap elimination structure, it effectively reduces the transmission backlash; the precision linear guide rail provides smooth and stable movement, with low vibration during the movement process, and will not interfere with weak optical signal collection. The platform's repeat positioning accuracy can reach ±1μm, meeting the micron-level positioning requirements for sample micro-area scanning and optical element fine adjustment alignment.
The platform surface and base are made of hard anodized aluminum alloy, with good rigidity and light weight. The platform surface is reserved with standard M6 installation holes, and the base is compatible with the standard installation holes of the optical platform, supporting single-axis independent use or direct stacking to form an XY two-dimensional displacement stage. Assembly is simple, and the verticality is easy to calibrate. The platform integrates positive and negative limit switches and origin sensors, supporting automatic zero return upon startup, with overtravel protection to prevent the mechanism from being damaged due to incorrect operation, ensuring stable operation of long-term automated experiments.
It is equipped with a two-phase stepper motor and a DB9 communication interface, which can directly match the Sefan 7SC series motion controller. It supports point positioning, continuous scanning, reciprocating motion, motion sequence programming, and supports user software secondary development, quickly integrating into the automated testing system. It comes with a manual adjustment handwheel, which can be manually moved the platform in the event of power failure, facilitating optical path setup and rough adjustment of samples, while also meeting the requirements of both automated operation and on-site debugging.
This series offers multiple standard travel options, covering 25mm, 50mm, 75mm, and 100mm, allowing for flexible selection based on the sample's movement range. The entire machine has low operating noise and is suitable for long-term continuous testing in laboratory environments.
The application scenarios are diverse: university optoelectronics and materials laboratories, micro-area spectroscopy mapping, sample displacement testing, lens and prism angle and position fine adjustment; laser optical path debugging, precise adjustment of light spot position; semiconductor and optical detection, automatic positioning of small components; internal integration of small detection equipment and analysis instruments, building one-dimensional / two-dimensional automated sample movement mechanisms.
Compact body, high precision, stable operation. The Sefan 7STA02B series electric translation stages provide a cost-effective domestic optical machine solution for precision displacement requirements in narrow optical paths.
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