In the limited workstations of precision optical testing, in the compact production lines of semiconductor manufacturing, and in the integrated modules of photovoltaic equipment, engineers have long been facing a two-pronged industry pain point: they want long stroke displacement with high load capacity and high rigidity, but the volume of the slide table is difficult to be made small; they want a compact body, but often have to sacrifice rigidity, load capacity and running stability. Traditional split-type slide tables have always been trapped in the inherent limitations of "large volume, weak rigidity, and difficult integration", leaving countless equipment integration solutions stuck in the contradiction between space and performance.
Safin Optoelectronics, which has been deeply involved in the field of precision opto-mechanical-electrical for 22 years, has broken the industry inertia with the 7STA20 series of track-intricate screw slide tables. With the unique structural design of "track and base integration embedded", it integrates high rigidity, large load capacity and micrometer-level precision into a compact body, presenting a new answer of "small volume but heavy load and stable movement" for high-end research and industrial scenarios.
The integrated design of track-intricate embedding fundamentally maximizes rigidity
In traditional split-type slide tables, the guide rails are fixed separately on the base, which easily causes local deformation and vibration amplification under heavy load, and the position of the guide rails will shift over time, resulting in rapid degradation of precision. The 7STA20 series completely restructured the basic structure of the slide table, embedding the linear guide rails directly into the high-strength aluminum alloy base, combined with precise integrated grinding technology, allowing the track and base to form an inseparable rigid whole, with structural rigidity far exceeding that of traditional split-type slide tables by several times.
This design fundamentally suppresses deformation and vibration under heavy load, even under full-load high-speed reciprocating operation, there will be no common problems of platform jitter and operation stalling as in ordinary slide tables, the entire movement is smooth without any jam or gap, even under long-term high-frequency operation, the structure will not experience loosening or deformation, and the overall service life of the equipment will be significantly improved. Many industrial users have tested it and found that it can operate continuously in the production line for tens of thousands of hours, and the parallelism of the guide rails still maintains the micrometer-level accuracy at the factory, completely eliminating the need to stop and calibrate the guide rails every few months like previous split-type slide tables.
Micrometer-level precise control throughout the entire stroke, stable even under heavy load
Compact bodies never mean sacrificing performance. The 7STA20 series is equipped with high-quality grinding ball screws, with transmission accuracy and smoothness far exceeding ordinary rolled screws, with a repeat positioning accuracy of less than 0.005mm, a resolution of up to 0.00125mm, even within the ultra-long stroke range of 100mm to 1250mm, each displacement can maintain a micrometer-level positioning performance.
Its load capacity is even far beyond that of conventional slide tables of the same volume: the maximum horizontal load can reach 110kg, the maximum vertical load can reach 33kg, it can stably carry heavy components such as large-sized optical detection equipment, semiconductor tooling fixtures, and photovoltaic processing modules, and the platform jump is still controlled within micrometer-level even under full-load operation, perfectly adapting to scenarios with extremely high requirements for displacement stability such as spectral scanning, fiber coupling, and semiconductor detection. Before, a photovoltaic industry user used it to build a large-stroke detection workstation, with a complete set of detection modules operating at a uniform speed within a 1-meter stroke range, and continuous operation for one month, the data consistency was improved by one order of magnitude compared to the previous split-type slide table.
Minimalist integration design significantly reduces the integration threshold of equipment
Many equipment integration engineers have had similar experiences. After receiving a large-stroke heavy-load slide table, it takes a lot of time to adjust the parallelism of the guide rails and modify the installation holes, and even after several weeks of efforts, it is still impossible to reach the expected precision. The 7STA20 series was designed from the very beginning to take integration convenience into account, with a highly compact body structure, it is nearly 30% smaller in volume than traditional split-type slide tables of the same load and stroke range, and can easily fit into the space-constrained compact equipment.
The standard configuration includes a closed-loop stepping motor of 60mm, and an option to select a 400W servo motor as per requirements. It is equipped with a standard DB9 interface, which enables seamless integration with the entire series of motion controllers from Sifan. It supports synchronous operation of multiple stages, and during the construction of automated production lines or experimental platforms, the integrated debugging time is shortened by 40% compared to traditional separate-stage sliders. The screw pitch supports multiple specifications such as 5mm, 10mm, 20mm, and 32mm, with a maximum speed of 1600mm/s. It can be flexibly adjusted according to different efficiency requirements in different scenarios; both ends of the body are equipped with limit and zero position switches, which not only facilitate quick zero positioning but also provide over-travel protection, balancing operational efficiency and equipment safety.
Nowadays, the 7STA20 series of track-in-place screw sliders have been widely applied in many high-end fields such as precision optical testing, semiconductor manufacturing, photovoltaic equipment, and industrial automation. As the flagship track-in-place slider product created by Sifan Optics after 22 years of deep research, its performance is on par with international high-end products, with an overall cost improvement of 40%. It is also equipped with 4-hour rapid response local after-sales service and 3-year core component warranty, eliminating the need to wait for a long delivery and after-sales cycle like imported equipment.
Embedded rigid, micro-micron stable movement. The 7STA20 series of track-in-place screw sliders use a unique integrated structure design to break the industry's curse that "volume and performance cannot be achieved simultaneously". In a compact space, heavy-load long-stroke precise displacement can truly become a worry-free and reliable standardized choice, helping domestic high-end precision equipment achieve performance breakthroughs.
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