Something out of nothing beyond the world of high technology, the SFA Engineering Corp. is going to make.
This constant innovation SFA Engineering Corp. for the top of the core competencies of the exercise.
Operation method, power supply, safety device, AUTO DOOR and such are the same as the existing methods, while guide method was changed to magnetic levitation so that controller algorithm was changed and power conversion device and GAP maintaining controller were added.
- During the vertical conveyance of the lifter, the existing contact-type guide roller is replaced with electromagnet of magnetic levitation type so as to essentially remove the particle generated by roller's friction.
- By the application of magnetic levitation, the application of lubrication system due to mechanical bearing is unnecessary so that pollution of installation environment can be minimized.
- Due to contactless support, dust can be minimized so that quality improvement and maintenance cost reduction can be expected.
- By controlling the current of electromagnet, support strength and damping is controlled online so as to improve quake-resistance and suppress particle generation
A conductor is planted in the ascending/descending guide rail of the lifter and a magnet is attached to the cage so as to control maintaining a gap of 5-8 mm between cage body and rail and allowing the ascending/descending without contact so that the noise/particle generation is suppressed and super-high speed lifting of 180-200 m/min (low speed of 100 m/min for the existing method) is made possible.