The SMC 11-LEJS40V6A-900BD-RAM2H is a clean room specification electric actuator from the LEJS series — a high-rigidity platform with AC servo motor and MECHATROLINK fieldbus compatibility. Part number decoded: LEJS = LEJS series high-rigidity slider, 40 = 40mm width, V6A = AC servo motor with V6 specification, 900 = 900mm stroke, B = brake option, D = specific mounting, RAM2H = MECHATROLINK compatible driver with specific configuration.

The LEJS series represents the highest performance tier in SMC's clean room electric actuator range. The high-rigidity construction provides maximum structural stiffness for heavy payloads and high dynamic loads during rapid acceleration. The AC servo motor delivers superior speed, torque, and dynamic response compared to 24VDC step motor servo alternatives. MECHATROLINK is an industrial fieldbus protocol for motion control, enabling high-speed, deterministic communication between the servo driver and the equipment's motion controller for coordinated multi-axis operations.

The LEJS40V6A-900BD-RAM2H provides 900mm of high-rigidity, high-speed precision travel — the longest stroke in this product batch. For the standard LEFS40 without high-rigidity construction, the LEFS40A or LEFS40B provides cost-effective positioning. For LEJS at 63mm width with even higher capacity, the LEJS63 series steps up further. For non-MECHATROLINK controller compatibility, different driver configurations are available. This is a premium specification for demanding semiconductor and display manufacturing equipment. Clean series (11-). RoHS compliant.