High Rigidity Ball Screw Drive
This version of the LEKFS 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. Optional drivers include pulse input and various communication protocols including Ethernet. Encoders range from 17 to 22-bit resolution, depending on motor selection.
LEKFS, High Rigidity Ball Screw Slider, AC Servo Motor
The LEKFS slider is an electric actuator with a load mounting platform situated above a ballscrew drive. LEKFS has the same external dimensions and mounting as LEFS, but LEKFS includes a redesigned guide with 4 rows of steel balls instead of 2. This more rigid design decreases table movement, permits greater offset loads, and improves positioning repeatability. Additional enhancements vs. the LEFS include standard auto switch mounting grooves and positioning pin holes, plus improved dustproof performance with magnetic seal band adhesion. 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
- Stroke range: 50 to 500mm in 50mm increments, 600-1200mm in 100mm increments
- Positioning repeatability: ±0.01mm
- Dynamic allowable moment: 8-61% improved vs. LEFS (size and axis dependent)
- Encoder resolution: 17-bit (S motors), 22-bit (T motors), 20-bit (V motors)
LEKFS, High Rigidity Slider, Ball Screw Drive, Motorless
The rodless LEKFS slider is an electric actuator with a load mounting platform situated 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, shorter length than a rod with equivalent stroke, and better positioning repeatability than a belt driven slider. LEKFS includes a redesigned guide with 4 rows of steel balls instead of 2, improving both allowable moment rigidity and positioning repeatability. Additional enhancements vs. the LEFS include auto switch mounting grooves, improved dustproof perfomance with magnetic seal band adhesion, standard positioning pin holes and drop-in upgrade replacement vs. LEFS. The motorless version permits the mounting of an AC servo motor other than the standard chosen by SMC. Shaft coupling and mounting patterns are compatible with servo motors from at least 18 different manufacturers. Manufacturers include FANUC, Rockwell Automation, Siements, Beckhoff, Mitsubishi, YASKAWA, OMRON, Panasonic and others.
- Body size: 25, 32, 40
- Maximum work load: 60 kg
- Maximum speed: 1500mm/s (H lead)
- Maximum acceleration: 20,000 mmls²
- Stroke range: 50 to 600mm in 50mm increments, 600-1200mm in 100mm increments
- Positioning repeatability: ±0.01mm