In the research scenarios such as optical alignment, sample positioning, and optical path alignment, many engineers and experimenters are in search of a stable-structured, smooth-adjustable, and low-offset manual displacement unit. The Sefan Optoelectronics 7STM02213 manual translation stage, relying on the mature 7STM series technology, provides a cost-effective domestic solution for micro-level positioning requirements in limited spaces.
7STM02213 adopts precise steel ball guide rails for guidance, with strict motion gap control, smooth operation without jamming, and can maintain good guidance even after long-term and frequent adjustments. It is equipped with fine-thread differential screw drive and built-in spring relief structure, effectively suppressing the return stroke backlash, with uniform and delicate fine-tuning feel, controllable positioning error, and meeting the requirements for precise alignment in optical experiments. This model has a stroke of 13mm and a tabletop size of 45×45mm. Compared to the small tabletop version, it has stronger carrying capacity and a maximum load of up to 1.5kg. Without significantly increasing the volume, it improves the installation space and load capacity of the tabletop, making it convenient to directly place lens holders, sample holders, detectors, etc.
The tabletop and base are reserved with standard optical installation screw holes, with strong universality, and can be directly fixed on optical platforms or optical supports; it supports stacking combinations of the same series products to quickly build XY, XYZ multi-dimensional adjustment modules, and flexibly adapt to different optical path layouts. It is a purely manual mechanical structure, without the need for power supply, controller, or wiring debugging. It can be put into use immediately after opening the box, significantly shortening the setup and calibration time of the experimental system, and is very suitable for rapid verification of solutions and temporary optical path debugging.
It is widely used in laser alignment debugging, mirror/lens fine-tuning, microscopic sample displacement, spectral acquisition alignment, optical component testing, university optical teaching experiments, small visual inspection fixtures, etc. Compared with imported counterparts of the same specification translation stages, 7STM02213 has comparable accuracy and stability, but shorter delivery time and better procurement costs, and convenient after-sales communication and response.
As a model in the 7STM series that balances tabletop size, carrying capacity, and compactness, 7STM02213 is very suitable for optical machine construction projects requiring a 13mm stroke and a larger installation tabletop. With solid machining processes, stable adjustment performance, it is the preferred precision translation stage for prototype debugging and experimental support in research laboratories and optical R&D enterprises.
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