Ball Screw Drive
The AC servo version of the LEFS slider features an AC servo motor instead of a DC version. The AC servo motor enables higher speed and acceleration, as well as improved vertical load capability in the size 40 model. Optional drivers include pulse input and various communication protocols including Ethernet. Encoders range from 17 to 22-bit resolution, depending on motor selection.
LEFS, Electric Actuator, Ball Screw Slider, AC Servo Motor
The LEFS slider features a load mounting platform above a ball screw drive. A flexible seal band permits platform travel while preventing foreign matter from entering the drive. Slider advantages include a low profile height and shorter length than a rod with equivalent stroke. The optional parallel mounted motor places the motor alongside the platform axis. This arrangement is shorter than the inline motor, and avoids interference with the load mounting surface. This model is fitted with an AC servo motor with incremental or absolute encoder. Optional drivers include pulse input and various communication protocols including Ethernet.
- Body sizes: 25, 32, 40
- Maximum work load: 60 kg
- Maximum speed: 1500 mm/s (H lead)
- Stroke range: 50 to 1200mmin in 50mm increments
- Positioning repeatability: ±0.02mm (±0.01mm high precision option)
- Encoder resolution: 17-bit (S motors), 22-bit (T motors), 20-bit (V motors)
LEFS, Electric Actuator, Slider Type, Ball Screw Drive, Motorless
The LEFS 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 Kenki, Omron, and Panasonic.- Body Size: 25, 32, 40
- Maximum work load: 60 kg
- Maximum speed: 1200mm/s (H lead)
- Maximum acceleration: 20,000 mm/s2
- Stroke range: 100 to 1000 mm in 50 mm increments
- Positioning repeatability:±0.02 mm
25A-LEFS Electric Actuator, Ball Screw Slider, AC Servo Motor, Secondary Battery
The 25A- series variations are compatible with secondary battery manufacturing for electronics, automotive, and other vehicle types. Design goals include eliminating copper (Cu) and zinc (Zn) material where possible, and employing a low dew point grease that retains lubricity even in low manufacturing temperatures. Please note that copper and zinc materials are used for the motors, cales, controllers and drivers.
- Same features and performance as standard LEFS AC Servo
- Stainless steel bolts for construction
- Low dew point grease functional down to -70°C
- Copper and zinc free except for motor, cables, and driver
- Non-standard materials for compatibility with secondary/rechargeable battery manufacturing