The SMC LEJS63S3B-500B-R5A1H is a high-performance electric actuator from the LEJS-AC Series, designed for precision and efficiency. This actuator features a high rigidity slider type ball screw drive powered by an AC servo motor, ensuring reliable and smooth operation. Its low-profile design reduces the height dimension by approximately 36%, making it ideal for applications with space constraints. With a maximum work load capacity of 85 kg and exceptional positioning repeatability of ±0.02 mm, it is perfect for tasks requiring high precision. The actuator boasts a maximum acceleration/deceleration of 20000 mm/S², allowing for rapid and efficient movements. Additionally, it meets clean specifications, complying with ISO Class 4 (Class 10) standards, making it suitable for cleanroom environments. Compatible with a range of drivers, including LECSA, LECSB(-T), LECSC(-T), LECSS, LECSS-T, LECSN-T, LECY, and more, this actuator offers versatility and adaptability for various industrial applications.