In the fields of large-sized optical systems, heavy-duty workpiece indexing, semiconductor equipment, laser processing and high-precision inspection, the electric rotating table with large load capacity, high rigidity, low backlash and full attitude stability operation is the core equipment that determines the system's accuracy and long-term reliability. Saifan Optoelectronics' 7SRA4400 electric rotating table, with a 400mm ultra-large tabletop, cross roller bearings, precisely ground worm gears and worms, and all-directional installation as its core features, integrates the advantages of heavy load, high precision, low noise and easy maintenance. It is specially designed for large-sized, heavy-load and high-precision rotation scenarios, and is the "heavy-duty precision rotation benchmark" for industrial automation and cutting-edge research. 

High precision transmission, angle-second level accuracy, minimal backlash and strong rigidity

The 7SRA4400 core transmission system adopts hardened and precision-ground worm and worm gear pairs + cross cylindrical roller bearings. Through ultra-precision grinding and backlash elimination processes, it has high transmission accuracy, minimal backlash, and extremely strong rigidity. The accuracy does not deteriorate over a long period of operation. 

Precise backlash design: Equipped with a tunable backlash structure, it can conveniently compensate for wear caused by long-term use. No complex disassembly is required, ensuring efficient maintenance and stable, long-lasting precision. 

Elastic coupling transmission: The motor and the worm gear are connected by imported high-quality elastic coupling. The transmission is synchronized, with vibration and noise reduction, resulting in low operating noise. It is suitable for clean workshops and laboratories to meet the requirements for quiet operation. 

360° continuous rotation: Supports forward and reverse continuous speed adjustment, with low-speed micro-motion capable of achieving angle adjustment to the level of arc seconds. The medium-high speed rotation is smooth, and both fast and slow operating conditions can be precisely controlled. 

Laser scale ring: The outer ring of the platform is laser-engraved with precise scales. It can rotate relative to the platform, and the initial positioning is intuitive and the reading is accurate. This facilitates manual assistance in positioning and calibration. 

With a super-large tabletop and full-directional installation, it is stable as a rock even in complex working conditions.

As a large-diameter heavy-duty model, the 7SRA4400 is equipped with a high-strength aluminum alloy + bearing steel body, undergoes hard anodizing treatment, and is dust-proof, corrosion-resistant, vibration-resistant, and deformation-resistant, making it suitable for harsh industrial environments. 

400mm super-large tabletop: The large-diameter tabletop is equipped with standard installation holes, which can stably bear heavy optical lenses, large workholding fixtures, precision inspection equipment, and industrial modules. During full-load operation, there is no shaking or deviation. 

Cross roller bearing structure: Ultra-high motion performance, capable of supporting horizontal, vertical, and inverted full-tilt installation. Perfectly suitable for unconventional positions such as equipment racks, sides, and high altitudes, with full space adaptability. 

Strengthened base design: The base is widened and reinforced to ensure stable placement without the risk of tipping over. No complex adapters are required. It can be quickly fixed in various positions such as flat placement, side mounting, or hoisting, significantly shortening the integration and debugging cycle. 

Intelligent control is easy to integrate and suitable for both scientific research and industrial applications.

Equipped with high-performance stepper motors, it comes with a standard RS232 interface, compatible with the SEVAN 7SC series motion controller. It supports computer-based upper-level programming, manual point control, origin return, limit protection, multi-axis linkage, and can quickly build an automated rotation system. 

Optical zero position option: An optical zero position can be added to achieve precise origin positioning, meeting the requirements of high-precision repetitive positioning scenarios. 

Servo upgrade option available: Servo motors can be replaced, suitable for industrial-grade high precision, high response, and long-term operation requirements. 

Multi-scenario compatibility: From university optical experiments, research institute precision tests, to laser scanning, semiconductor wafer inspection, new energy component angle calibration, and industrial indexing processing, it is fully compatible in all scenarios and stable and reliable. 

Key advantages overview

✅ Super large tabletop for heavy loads: 400mm large-diameter tabletop, with strong load-bearing capacity, suitable for heavy loads 

✅ Cross roller bearing: Extremely high rigidity, stable installation in all orientations, resistant to vibration and deformation 

✅ Precise gear and worm gear processing: Angle-second level accuracy, minimal backlash, strong transmission rigidity 

✅ Easy maintenance of clearance: Adjustable clearance design, convenient for maintenance, and stable precision over the long term. 

✅ Low noise and long lifespan: Elastic coupling + Dust-proof and corrosion-resistant design, low noise and long service life 

✅ Intelligent and Easy Integration: Standard communication interface, compatible with multiple controllers, supports programming linkage 

Typical application scenarios

Optical system: Large aperture optical alignment, spectral testing, laser scanning, angle calibration 

Industrial Automation: Heavy-duty Precision Assembly, Part Tolerance Control, Tooling Positioning, Automated Inspection 

Semiconductors and Electronics: Large Wafer Inspection, Device Positioning, Precise Processing 

Scientific research experiments: College physics experiments, precise orientation research in research institutes, sample rotation testing 

Laser and New Energy: Laser marking, panoramic scanning, angle detection of new energy components 

Sevan Optoelectronics' 7SRA4400 electric rotating platform, with its five core advantages of an ultra-large surface, heavy-load stability, all-directional installation, high precision and low noise, and easy control and durability, has redefined the standard for large-diameter heavy-load precision rotation. Whether it is a laboratory that pursues ultimate precision or a heavy production line that values stability and efficiency, the 7SRA4400 can provide hard-core quality to assist with every precise rotation positioning, setting a new benchmark in the field of large-load precision displacement control.