SMC 11-LEFS40B-150B | Clean Room Electric Actuator LEFS Series Ball Screw 40mm Width 150mm Stroke B-Motor B-Spec High Capacity
SMC
$1,810.00
The SMC 11-LEFS40B-150B is a clean room specification electric actuator from the LEFS series with B-type motor and additional B specification. Part number decoded: LEFS = LEFS series ball screw electric actuator, 40 = 40mm width, B = B-type servo motor, 150 = 150mm stroke, B = additional specification (typically indicating a specific motor mounting, cable routing, or brake option). This variant adds a feature to the base LEFS40B-150 configuration.
The trailing B suffix distinguishes this from the LEFS40B-150 base unit. In SMC's LEFS naming convention, the trailing B typically indicates a specific brake option, motor cable configuration, or mounting modification. A motor brake holds the slider in position when power is removed, preventing gravity-driven movement in vertical or inclined installations. This is critical for vertical Z-axis applications in clean room equipment where uncontrolled slider descent upon power loss could damage workpieces or create safety hazards.
The LEFS40B-150B adds the B specification to the LEFS40B-150 base unit. For the base version without the trailing B, the LEFS40B-150 provides the standard configuration. For A-type motor at the same specifications, the LEFS40A series provides step motor servo alternatives. For longer stroke with the same B-spec, specify LEFS40B-200B or larger stroke values. For vertical applications, always verify whether a motor brake (B suffix) is recommended by SMC for the intended mounting orientation. Clean series (11-). RoHS compliant.
- Series:
- 11-LEFS (Clean Room)
- Actuator Type:
- Electric Slider Ball Screw
- Drive:
- Ball Screw Servo Motor
- Width:
- 40mm
- Stroke:
- 150mm
- Motor Type:
- B
- Specification:
- B (Brake/Cable Option)
- Load Capacity:
- High (Largest LEFS Body)
- Positioning:
- High Precision Multi-Point
- Clean Room Grade:
- Enhanced (11-)
- Certifications:
- RoHS
