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Electric Actuator, Slider Type, Ball Screw Drive, Motorless Type LEFS Series (Part Numbers)

Electric Actuator, Slider Type, Ball Screw Drive, Motorless Type LEFS Series

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  • Electric Actuator, Slider Type, Ball Screw Drive, Motorless Type LEFS Series
  • Electric Actuator, Slider Type, Ball Screw Drive, Motorless Type LEFS Series
  • Volume Discount

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.

(i)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.

PDF

Electric Actuator, Slider Type, Ball Screw Drive LEFS Series Specifications

Electric Actuator, Slider Type, Ball Screw Drive LEFS Series external appearance

Electric Actuator, Slider Type, Ball Screw Drive LEFS Series external appearance

Specifications: Note 2:

ModelLEFS25LEFS32LEFS40
Actuator SpecificationsStroke [mm] Note 1:50 to 80050 to 1,000150 to 1,200
Work Load [kg]Horizontal102020304045305060
Vertical48155102071530
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 Type0.1 or less
High Precision Type0.05 or less
Ball Screw SpecificationsThread Diameter [mm]ø10 mmø12 (diameter 12 mm)ø15 (diameter 15 mm)
Lead [mm]2012624168302010
Shaft Length [mm]Stroke + 150Stroke + 185Stroke + 235
Maximum Acceleration/Deceleration [mm/s2]20,000 Note 4:
Impact/Vibration Resistance [m/s2] Note 6:50/20
Actuation TypeBall screw (LEFS□), ball screw + belt (LEFS□R LEFS□L)
Guide TypeLinear guide
Operating Temperature Range [°C]5 to 40
Operating Humidity Range [%RH]90 or less (no condensation)
Other Specifications Note 5:Drive Weight [kg]0.20.30.55
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 Coefficient0.05
Mechanical Efficiency0.8
Reference Motor SpecificationsMotor Type□40□60
Motor typeAC servo motor (100 V / 200 V)
Rated Output Capacity [W]100200400
Rated Torque [Nm]0.320.641.3
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

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: NZ/NY/NX dimensional drawing

Motor type: NM1/NM2 dimensional drawing

Motor type: NM1/NM2 dimensional drawing

Dimensions Table

 

(Units: mm)

 

StrokeLABnDEF
50201.5561604--20
100251.51062104--35
150301.51562604--35
200351.52063106224035
250401.52563606224035
300451.53064108336035
350501.53564608336035
400551.54065108336035
450601.540656010448035
500651.550661010448035
550701.555666012560035
600751.560671012560035
650801.565676012560035
700851.570681014672035
750901.575686014672035
800951.580691016784035

Motor Mounting Part Dimensions Table

 

(Units: mm)

 

Motor typeFAFBFCFDFEFFFGFH
NZ/NXM4 × 0.7846303.535.5--
NYM3 × 0.5845303.535.5--
NM13.4-3122 *2.5*246.513.5
NM23.4-3122 *2.5*33.16.522.6

*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.
Part Number
LEFSH25NZA-400
LEFSH25NZA-450
LEFSH25NZA-500
LEFSH25NZA-550
LEFSH25NZA-600
LEFSH25NZA-650
LEFSH25NZA-700
LEFSH25NZA-800
LEFSH25NZB-50
LEFSH25NZB-100
LEFSH25NZB-150
LEFSH25NZB-200
LEFSH25NZB-250
LEFSH25NZB-300
LEFSH25NZB-350
LEFSH25NZB-400
LEFSH25NZB-450
LEFSH25NZB-500
LEFSH25NZB-550
LEFSH25NZB-600
LEFSH25NZB-700
LEFSH25NZB-800
LEFSH25NZH-50
LEFSH25NZH-100
LEFSH25NZH-150
LEFSH25NZH-200
LEFSH25NZH-250
LEFSH25NZH-300
LEFSH25NZH-350
LEFSH25NZH-400
LEFSH25NZH-450
LEFSH25NZH-500
LEFSH25NZH-600
LEFSH25NZH-700
LEFSH25NZH-800
LEFSH25RNM1A-450
LEFSH25RNM1A-500
LEFSH25RNM1B-200
LEFSH25RNM1H-300
LEFSH25RNM2A-50
LEFSH25RNM2A-100
LEFSH25RNM2A-150
LEFSH25RNM2A-200
LEFSH25RNM2A-250
LEFSH25RNM2A-300
LEFSH25RNM2A-400
LEFSH25RNM2A-800
LEFSH25RNXB-150
LEFSH25RNXB-200
LEFSH25RNXB-350
LEFSH25RNYA-100
LEFSH25RNYA-200
LEFSH25RNYA-300
LEFSH25RNYA-400
LEFSH25RNYA-500
LEFSH25RNYA-600
LEFSH25RNYB-200
LEFSH25RNYH-100
LEFSH25RNYH-200
LEFSH25RNYH-600
LEFSH25RNZA-50
LEFSH25RNZA-100
LEFSH25RNZA-150
LEFSH25RNZA-200
LEFSH25RNZA-250
LEFSH25RNZA-300
LEFSH25RNZA-350
LEFSH25RNZA-400
LEFSH25RNZA-450
LEFSH25RNZA-500
LEFSH25RNZA-550
LEFSH25RNZA-650
LEFSH25RNZB-50
LEFSH25RNZB-100
LEFSH25RNZB-150
LEFSH25RNZB-200
LEFSH25RNZB-250
LEFSH25RNZB-350
LEFSH25RNZH-50
LEFSH25RNZH-100
LEFSH25RNZH-150
LEFSH25RNZH-200
LEFSH25RNZH-250
LEFSH25RNZH-300
LEFSH25RNZH-400
LEFSH25RNZH-450
LEFSH25RNZH-500
LEFSH25RNZH-550
LEFSH25RNZH-600
LEFSH25RNZH-800
Part NumberStandard Unit PriceMinimum order quantityVolume DiscountDays to ShipStroke
(mm)
Max. Transportable Mass Range (Horizontal)
(kg)
Max. Transportable Mass (Horizontal)
(kg)
Max. Transportable Mass Range (Vertical)
(kg)
Max. Transportable Mass (Vertical)
(kg)
Lead
(mm)
Table Width W1
(mm)
Table Length L1
(mm)
Positioning Repeatability
(µm)
Maximum Velocity
(mm/sec)
Size Accuracy Motor type Motor mounting position

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Basic Information

Main Body, Peripheral Components Main Body Type Slider Guide Provided
Position Detection Incremental Brake Not Provided Cable Not Provided
Noise Filter Not Provided Operating Environment Standard

Frequently asked question (FAQ)

Question: Does the LE series have a built-in origin sensor?
Answer: There is no origin sensor.
When an origin sensor is required in use combined with LECS, mount a separate sensor.
As well, origin return in combined use with LECP/LECPA does not require an origin sensor, as the push origin method is used.
[Push origin method: The table is pushed against the stroke end and its position is used as origin reference]
Question: Is horizontal ceiling mounting possible for the LEF Series?
Answer: Ceiling mounting is possible with the same selection as for horizontal.
However, note that longer strokes will lead to seal band deflection.

Tech Support

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