Electric Actuator, Slider Type, Ball Screw Drive, Motorless Type LEFS Series
Caution
- Refer to the manufacturer's catalog for specification and material details.
- The product image is a representative image only. CAD data is not available for some model numbers.
Product Description
A motorless specification electric actuator.
[Features]
· The motorless design permits the mounting of various servo motors.
· Compatible with motors/drivers that have been conventionally used.
· Slider type.
· RoHS compliant.
· Size 25 - stroke: 50 to 800 mm.
· Size 32 - stroke: 50 to 1,000 mm.
· Size 40 - stroke: 150 to 1,200 mm.
Electric Actuator, Slider Type, Ball Screw Drive LEFS Series Specifications
Electric Actuator, Slider Type, Ball Screw Drive LEFS Series external appearance
Specifications: Note 2:
| Model | LEFS25 | LEFS32 | LEFS40 | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Actuator Specifications | Stroke [mm] Note 1: | 50 to 800 | 50 to 1,000 | 150 to 1,200 | |||||||
| Work Load [kg] | Horizontal | 10 | 20 | 20 | 30 | 40 | 45 | 30 | 50 | 60 | |
| Vertical | 4 | 8 | 15 | 5 | 10 | 20 | 7 | 15 | 30 | ||
| Return to Origin Speed [mm/s] | 30 or less | ||||||||||
| Positioning Repeatability [mm] | Basic Type | ±0.02 | |||||||||
| High Precision Type | ±0.01 | ||||||||||
| Lost Motion Note 3: [mm] | Basic Type | 0.1 or less | |||||||||
| High Precision Type | 0.05 or less | ||||||||||
| Ball Screw Specifications | Thread Diameter [mm] | ø10 mm | ø12 (diameter 12 mm) | ø15 (diameter 15 mm) | |||||||
| Lead [mm] | 20 | 12 | 6 | 24 | 16 | 8 | 30 | 20 | 10 | ||
| Shaft Length [mm] | Stroke + 150 | Stroke + 185 | Stroke + 235 | ||||||||
| Maximum Acceleration/Deceleration [mm/s2] | 20,000 Note 4: | ||||||||||
| Impact/Vibration Resistance [m/s2] Note 6: | 50/20 | ||||||||||
| Actuation Type | Ball screw (LEFS□), ball screw + belt (LEFS□R LEFS□L) | ||||||||||
| Guide Type | Linear guide | ||||||||||
| Operating Temperature Range [°C] | 5 to 40 | ||||||||||
| Operating Humidity Range [%RH] | 90 or less (no condensation) | ||||||||||
| Other Specifications Note 5: | Drive Weight [kg] | 0.2 | 0.3 | 0.55 | |||||||
| Other Inertia [kg/cm2] | 0.02 (LEFS25) 0.02 (LEFS25R LEFS25L) | 0.08 (LEFS32) 0.06 (LEFS32R LEFS32L) | 0.08 (LEFS40) 0.17 (LEFS40R LEFS40L) | ||||||||
| Friction Coefficient | 0.05 | ||||||||||
| Mechanical Efficiency | 0.8 | ||||||||||
| Reference Motor Specifications | Motor Type | □40 | □60 | ||||||||
| Motor type | AC servo motor (100 V / 200 V) | ||||||||||
| Rated Output Capacity [W] | 100 | 200 | 400 | ||||||||
| Rated Torque [Nm] | 0.32 | 0.64 | 1.3 | ||||||||
| Rated Rotation [rpm] | 3,000 | ||||||||||
Note 1: Non-standard strokes are manufactured as custom orders.
Note 2: Do not allow collision at either end of the table movement distance at speeds exceeding the "return to origin speed."
In addition, when performing positioning, do not set within a 2 mm range of either end.
Note 3: A reference value for correcting an error in reciprocal operation.
Note 4: Maximum acceleration/deceleration differs depending on the work load. Refer to the "Work Load−Acceleration/Deceleration Graph" in the ball screw drive section of the catalog.
Note 5: Values are guidelines only. Use these values for selecting the motor capacity, etc.
Note 6: Impact resistance: No malfunction occurred when the actuator was tested with a drop tester in both an axial direction and a perpendicular direction to the lead screw. (Test was performed with the actuator in the initial state.)
Vibration resistance: No malfunction occurred in a test ranging between 45 and 2,000 Hz (1 sweep), performed in both an axial direction and a perpendicular direction to the lead screw. (Test was performed with the actuator in the initial state.)
- *These specifications are tolerance values for the actuator unit, equipped with the standard/reference motor.
- *Use within these specifications.
Dimensions / Ball Screw Drive
(Units: mm)
LEFS25 dimensional drawing
Note: When mounting the actuator using the body mounting reference plane, set the height of the opposite surface or pin to be 3 mm or more. (Recommended height: 5 mm)
Motor type: NZ/NY/NX dimensional drawing
Motor type: NM1/NM2 dimensional drawing
Dimensions Table
(Units: mm)
| Stroke | L | A | B | n | D | E | F |
|---|---|---|---|---|---|---|---|
| 50 | 201.5 | 56 | 160 | 4 | - | - | 20 |
| 100 | 251.5 | 106 | 210 | 4 | - | - | 35 |
| 150 | 301.5 | 156 | 260 | 4 | - | - | 35 |
| 200 | 351.5 | 206 | 310 | 6 | 2 | 240 | 35 |
| 250 | 401.5 | 256 | 360 | 6 | 2 | 240 | 35 |
| 300 | 451.5 | 306 | 410 | 8 | 3 | 360 | 35 |
| 350 | 501.5 | 356 | 460 | 8 | 3 | 360 | 35 |
| 400 | 551.5 | 406 | 510 | 8 | 3 | 360 | 35 |
| 450 | 601.5 | 406 | 560 | 10 | 4 | 480 | 35 |
| 500 | 651.5 | 506 | 610 | 10 | 4 | 480 | 35 |
| 550 | 701.5 | 556 | 660 | 12 | 5 | 600 | 35 |
| 600 | 751.5 | 606 | 710 | 12 | 5 | 600 | 35 |
| 650 | 801.5 | 656 | 760 | 12 | 5 | 600 | 35 |
| 700 | 851.5 | 706 | 810 | 14 | 6 | 720 | 35 |
| 750 | 901.5 | 756 | 860 | 14 | 6 | 720 | 35 |
| 800 | 951.5 | 806 | 910 | 16 | 7 | 840 | 35 |
Motor Mounting Part Dimensions Table
(Units: mm)
| Motor type | FA | FB | FC | FD | FE | FF | FG | FH |
|---|---|---|---|---|---|---|---|---|
| NZ/NX | M4 × 0.7 | 8 | 46 | 30 | 3.5 | 35.5 | - | - |
| NY | M3 × 0.5 | 8 | 45 | 30 | 3.5 | 35.5 | - | - |
| NM1 | 3.4 | - | 31 | 22 * | 2.5* | 24 | 6.5 | 13.5 |
| NM2 | 3.4 | - | 31 | 22 * | 2.5* | 33.1 | 6.5 | 22.6 |
*Dimension after attaching ring spacer.
Notes
- *Do not apply load in excess of the specification limits.
- *Select a suitable actuator by work load and allowable moment. If the product is used outside of the specification limits, the unbalanced load applied to the guide will be excessive and have adverse effects, such as creating play on the guide, degrading accuracy and shortening the lifespan of the product.
- *Do not use the product in applications where excessive external force or impact force is applied to it. Doing so can cause the product to malfunction.
- *Refer to the SMC catalog for product information other than what is detailed above.
- *The product image is a representative image only.