The AC servo version of the LEFB slider features an AC servo motor instead of a DC version. The AC servo motor enables higher speed and acceleration, as well as a size 40 model not available in a DC version. The drivers are pulse input type, with both incremental and absolute encoder options and 17- or 18-bit resolution.

• Body sizes: 25, 32, 40
• Maximum speed: 2000 mm/s
• Maximum stroke: 3000 mm
• Positioning repeatability: ±0.08 mm
• Motor available with either incremental 17-bit or absolute 18-bit encoder

The LEFB is available in a motorless type, permitting the mounting of an AC servo motor other than the standard chosen by SMC.  Shaft coupling and mounting patterns are compatible with 8 servo motor series from 5 manufacturers.  Manufacturers include Mitsubishi, Yaskawa, Sanyo Denki, Omron, and Panasonic.

• Body sizes: 25, 32, 40
• Maximum work load: 25 kg
• Maximum speed: 2000 mm/s
• Maximum acceleration: 20,000 mm/s²
• Positioning repeatability: ±0.08 mm
• Stroke range: 300 to 3000 mm in 100 mm increments