In research scenarios such as optical path setup, laser debugging, fiber coupling, and sample scanning tests, many experiments require a sufficient adjustment range of 25mm, but are also constrained by the installation space of the optical platform. The dense arrangement of components often leads to problems of mutual interference during adjustment. The Sefan Optoelectronics 7STM01225 manual translation stage, which combines a large adjustment range with a compact body, features a side-mounted micrometer head design. It can achieve smooth and stable micron-level positioning within a limited space, making it an ideal choice for manual displacement in optical laboratories.
The 7STM01225 adopts a precision steel ball guide rail pair, with the guide rail surface precisely machined and ground, ensuring uniform motion damping and smooth adjustment手感 without any jamming or overshooting. It is equipped with a high-precision micrometer head drive， with an effective travel of 25mm， a minimum scale of 0.01mm， a sensitivity of 0.002mm， and a positioning accuracy of up to 0.005mm. Whether for large-scale rough positioning or final micron-level fine alignment， it can complete the task in one step， meeting the needs of spot positioning， sample translation， and optical component alignment.
The built-in spring pre-tightening gap elimination mechanism is the core advantage of this translation stage， continuously counteracting transmission gaps and effectively suppressing the return stroke slack. The positioning repeatability is good during repeated adjustments， the debugging state is stable， the test results can be reproduced， reducing the workload of frequent recalibration， and improving the efficiency of optical path setup and experimental testing. The side-mounted micrometer head layout is different from the top-mounted style， avoiding the interference of above optical components， frames， and filters， making it suitable for optical platforms with high-density component arrangement， leaving more freedom for optical path layout.
The tabletop size is 34×34mm， the body is compact and compact， with a light self-weight， and the horizontal load capacity can reach 1kg. The tabletop and base are reserved installation holes according to optical standards， with strong compatibility， supporting single-axis independent use； or multiple units can be stacked and combined to build XY， XYZ multi-dimensional adjustment tables， and be paired with rotating tables， elevating tables， and optical alignment racks to quickly integrate the entire displacement adjustment system， flexibly adapting to various experimental scheme iterations.
The application scenarios cover university optical teaching experiments， spectral acquisition tests， laser research platform setup， and microscopic sample observation mobility； research institutes' optical detection， fiber alignment and coupling； industrial R&D end visual light source fine adjustment， and small-scale precision workpiece alignment， etc.
As a domestic precision displacement product， 7STM01225 balances the 25mm travel， high precision， and cost performance. Compared with imported translation stages of the same specification， the supply cycle is shorter， the technical connection and after-sales response are more timely， helping research projects reasonably control equipment procurement costs.
In a small space， precise movement. The Sefan Optoelectronics 7STM01225 precision manual translation stage， with a compact body， stable gap elimination structure， and a practical 25mm travel， provides a reliable and cost-effective manual displacement solution for optical precision positioning.
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