SMC Corporation of America
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The LEF series slider type electric actuator features a low profile height of 46mm *. The actuators main body can be mounted without removing any exterior components, such as the cover, making installation easy. The standard equipped seal band covers the guide, ball screw and belt, preventing grease and external foreign matter from splashing and entering the LEF. There are 2 types of drivers

LEFS*G is a high performance version of the standard slider, also equipped with the battery-less encoder onboard the motor.  This encoder allows the actuator to be powered down without losing its positional awareness.  Further, battery replacement and recycling are eliminated.  Load capacities have increased 9-50%.  Cycle time is dramatically reduced by a combination of higher maximum speed

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Motorless Type Electric Actuator/Slider Type Ball Screw Drive LEFS Series LEFS25, 32, 40 How to Order LEFS 100 A 25 q e y NZ w r t H R q Accuracy r Motor type e Motor mounting position y Stroke [mm] t Lead [mm] Nil Basic type H High precision type 50 50 to to 1200 1200 Nil In-line R Right side parallel L Left side parallel Symbol LEFS25 LEFS32 LEFS40 H 20 24 30 A 12 16 20 B 6 8 10 Symbol

New New Electric Actuator Slider Type RoHS Step Motor (Servo/24 VDC) T Servo Motor (24 VDC) Type Ball Screw Drive Series LEFS Size: 16, 25, 32, 40 Max. work load: 60 kg Positioning repeatability: o0.02 mm Clean room specification also available Clean room specification 11-LEFS Belt Drive Series LEFB Size: 16, 25, 32 Size: 16 25 32 Max. stroke: 2,000 mm Max. speed: 2,000 mm/s AC Servo Motor

Doc. no. LEF*-OMZ0025 PRODUCT NAME Electric Actuator Slider Type High performance Battery-less absolute encoder MODEL / Series / Product Number LEF Series LEFS*G #This manual describes the dedicated terms for LEFS*G. Refer to the manual of LEF series about other details. #Refer to the manual relevant to the controller being used for full operating instructions. Contents Safety Instructions

Series: LEFS, Accuracy: Basic Type, Size: 32, Motor Mounting Position: In-line, Motor Type: E (Battery-less absolute, 24VDC, Step), Lead: H (Size 25: 20mm, Size 32: 24mm, Size 40: 30mm), Stroke: 300mm, Motor Option: w/o Option, Auto Switch Compatibility: None, Grease Application: With, Positioning Pin Hole: K (Body Bottom 2 Locations)

Series: LEFS, Accuracy: Basic Type, Size: 40, Motor Mounting Position: In-line, Motor Type: E (Battery-less absolute, 24VDC, Step), Lead: A (Size 16: 10mm, Size 25: 12mm, Size 32: 16mm, Size 40: 20mm), Stroke: 300mm, Motor Option: w/o Option, Auto Switch Compatibility: None, Grease Application: With, Positioning Pin Hole: K (Body Bottom 2 Locations)

Series: LEFS (Ball Screw Drive), Accuracy: Basic, Body Size: 25, Motor Mounting Position: In-line, Motor Type: G (High Performance, Battery-less Absolute), Lead: A (Size 16: 10mm, Size 25: 12mm, Size 32: 16mm, Size 40: 20mm), Stroke: 300mm, Motor Option: w/o Option, Auto Switch Mounting Bracket: None, Grease Application: With, Positioning Pin Hole: K (Body Bottom 2 Locations)

Series: LEFS (Ball Screw Drive), Accuracy: Basic Type, Size: 25, Motor Mounting Position: R (Right Side Parallel), Motor Type: NZ (Mounting Type Z), Lead Screw: A (LEFS25, 12mm; LEFS32, 16mm; LEFS40, 20mm), Stroke: 300mm, Auto Switch Mounting Bracket: None, Seal Band Stopper: Standard, Positioning Pin Hole: K (Body Bottom 2 Locations)

Series: LEFS (Ball Screw Drive), Accuracy: Basic Type, Size: 32, Motor Mounting Position: R (Right Side Parallel), Motor Type: NZ (Mounting Type Z), Lead Screw: A (LEFS25, 12mm; LEFS32, 16mm; LEFS40, 20mm), Stroke: 300mm, Auto Switch Mounting Bracket: None, Seal Band Stopper: Standard, Positioning Pin Hole: K (Body Bottom 2 Locations)

Series: LEFS (Ball Screw Drive), Accuracy: Basic Type, Size: 32, Motor Mounting Position: L (Left Side Parallel), Motor Type: NZ (Mounting Type Z), Lead Screw: A (LEFS25, 12mm; LEFS32, 16mm; LEFS40, 20mm), Stroke: 300mm, Auto Switch Mounting Bracket: None, Seal Band Stopper: Standard, Positioning Pin Hole: K (Body Bottom 2 Locations)

Series: LEFS (Ball Screw Drive), Accuracy: H (High Precision Type), Size: 25, Motor Mounting Position: R (Right Side Parallel), Motor Type: NZ (Mounting Type Z), Lead Screw: B (LEFS25, 6mm; LEFS32, 8mm; LEFS40, 10mm), Stroke: 300mm, Auto Switch Mounting Bracket: None, Seal Band Stopper: Standard, Positioning Pin Hole: K (Body Bottom 2 Locations)

Series: LEFS (Ball Screw Drive), Accuracy: H (High Precision Type), Size: 25, Motor Mounting Position: In-line, Motor Type: NZ (Mounting Type Z), Lead Screw: H (LEFS25, 20mm; LEFS32, 24mm; LEFS40, 30mm), Stroke: 300mm, Auto Switch Mounting Bracket: None, Seal Band Stopper: Standard, Positioning Pin Hole: K (Body Bottom 2 Locations)