The SMC LEJS63T7B-900-R2 is a high-performance electric actuator from the LEJS Series, designed for applications requiring precision and reliability. This actuator features a high rigidity slider type ball screw drive, powered by an AC servo motor that is compatible with the LECS-T Series Driver. Its low-profile design reduces the height dimension by approximately 36%, enhancing stability with a lower center of gravity. Capable of handling a maximum workload of 85 kg, it ensures precise operations with a positioning repeatability of ±0.02 mm. The actuator supports rapid movements with a maximum acceleration/deceleration of 20000 mm/S². For environments requiring cleanliness, the 11-LEJS model complies with ISO Class 4 (Class 10) standards. It is compatible with a range of drivers, including LECSA, LECSB(-T), LECSC(-T), LECSS, LECSS-T, LECSN-T, and LECY, although some models have been discontinued. This actuator is ideal for industries demanding high precision and efficiency.