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Electric Actuator, Slider Type, Ball Screw Drive, Motorless Type LEFS Series (LEFS25NYB-800)

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SMC

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.

Part Number

Configured Part Number is shown.

LEFS25NYB-800

Product Specifications
Part Numbers
Catalog

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
	Work Load [kg]	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
	Positioning Repeatability [mm]	High Precision Type	±0.01
	Lost Motion ^{Note 3:} [mm]	Basic Type	0.1 or less
	Lost Motion ^{Note 3:} [mm]	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.

: 30; 45; 60

Part Number
LEFS25NYB-800

Part Number	Standard Unit Price	Minimum order quantity	Volume Discount	Days to Ship	Stroke (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
	-	1 Piece(s)		Quote	800	10.1~20.0	20	10.1~20.0	15	6	50	102	±20	160	25	Basic Type	Mounting type Y	In-line

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

Please check the type/dimensions/specifications of the part LEFS25NYB-800 in the Electric Actuator, Slider Type, Ball Screw Drive, Motorless Type LEFS Series series.

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1 Part Numbers

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Completed

Specification/Dimensions

type
- LEFS
- LEFSH
Clear
Stroke(mm)
1,000

1,100

1,200

50

100

150

200

250

300

350

400

450

500

550

600

650

700

750

800

850

900

950
Clear
Max. Transportable Mass Range (Horizontal)(kg)
- 5.1~10.0
- 10.1~20.0
- 20.1~50.0
- 50.1~100.0
Clear
Max. Transportable Mass (Horizontal)(kg)
10

20

30

40

45

50

60
Clear
Max. Transportable Mass Range (Vertical)(kg)
- 2.1~5.0
- 5.1~10.0
- 10.1~20.0
- 20.1~50.0
Clear
Max. Transportable Mass (Vertical)(kg)
4

5

7

8

10

15

20

30
Clear
Lead(mm)
6

8

10

12

16

20

24

30
Clear
Table Width W1(mm)
50

60

74
Clear
Table Length L1(mm)
102

122

170
Clear
Positioning Repeatability(µm)
±10

±20
Clear
Maximum Velocity(mm/sec)
1,000

1,140

1,200

1,410

1,500

160

170

190

200

210

220

250

260

270

310

330

340

360

380

400

410

420

440

450

470

500

510

520

540

550

610

620

700

720

750

760

780

800

900

930

940
Clear
Size
- 25
- 32
- 40
Clear
Accuracy
- Basic Type
- High Precision Type
Clear
Motor type
- Mounting type M1
- Mounting type M2
- Mounting type T
- Mounting type U
- Mounting type V
- Mounting type W
- Mounting type X
- Mounting type Y
- Mounting type Z
Clear
Motor mounting position
- In-line
- Left side parallel
- Right side parallel
Clear
CAD
- 2D
- 3D
Clear

Days to Ship

All

21 Day(s) or Less
Clear

Specify Alterations

The specifications and dimensions of some parts may not be fully covered. For exact details, refer to manufacturer catalogs .

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.

Products like this...

Part Number
LEFS25LNM1H-150
LEFS25LNM1H-300
LEFS25LNM2A-200
LEFS25NYH-100
LEFS25NYH-200
LEFS25NYH-300

Standard Unit Price	Minimum order quantity	Days to Ship	Stroke (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
-	1 Piece(s)	Quote	150	5.1~10.0	10	2.1~5.0	4	20	50	102	±20	1,500	25	Basic Type	Mounting type M1	Left side parallel
-	1 Piece(s)	Quote	300	5.1~10.0	10	2.1~5.0	4	20	50	102	±20	1,500	25	Basic Type	Mounting type M1	Left side parallel
-	1 Piece(s)	Quote	200	10.1~20.0	20	5.1~10.0	8	12	50	102	±20	900	25	Basic Type	Mounting type M2	Left side parallel
-	1 Piece(s)	Quote	100	5.1~10.0	10	2.1~5.0	4	20	50	102	±20	1,500	25	Basic Type	Mounting type Y	In-line
-	1 Piece(s)	Quote	200	5.1~10.0	10	2.1~5.0	4	20	50	102	±20	1,500	25	Basic Type	Mounting type Y	In-line
-	1 Piece(s)	Quote	300	5.1~10.0	10	2.1~5.0	4	20	50	102	±20	1,500	25	Basic Type	Mounting type Y	In-line

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Electric Actuator, Slider Type, Ball Screw Drive, Motorless Type LEFS Series (LEFS25NYB-800)

(i)Caution

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

Specifications: Note 2:

Dimensions / Ball Screw Drive

Dimensions Table

Motor Mounting Part Dimensions Table

Notes

Basic Information

Configure

Specification/Dimensions

type

Stroke(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

CAD

Days to Ship

Specify Alterations

Frequently asked question (FAQ)

Products like this...

Additional Products in this Category

Tech Support

Payment Method

About MISUMI

About this Website

Useful Tools

Customer Service

Social Media

MISUMI Contact 9am – 6pm (Mon – Fri) * Order cut-off time is 5pm, 9am – 1pm(Sat) * Order cut-off time is 12pm