Stepper Motors

Stepper Motors

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Length: Long
Encoder Type: No Encoder Fitted
Series: First Generation
Brake: With Brake
Motor Flange Size: 28mm

Length: Short
Encoder Type: Incremental Encoder
Series: Second Generation
Brake: With Brake
Motor Flange Size: 57mm

Length: Long
Encoder Type: No Encoder Fitted
Series: Second Generation
Brake: Without Brake
Motor Flange Size: 87mm

Length: Long
Encoder Type: No Encoder Fitted
Series: Second Generation
Brake: With Brake
Motor Flange Size: 87mm

Length: Long
Encoder Type: Incremental Encoder
Series: Second Generation
Brake: Without Brake
Motor Flange Size: 87mm

Length: Long
Encoder Type: Incremental Encoder
Series: Second Generation
Brake: With Brake
Motor Flange Size: 87mm

Length: Medium
Encoder Type: No Encoder Fitted
Series: Second Generation
Brake: Without Brake
Motor Flange Size: 87mm

Length: Medium
Encoder Type: No Encoder Fitted
Series: Second Generation
Brake: With Brake
Motor Flange Size: 87mm

Length: Medium
Encoder Type: Incremental Encoder
Series: Second Generation
Brake: Without Brake
Motor Flange Size: 87mm

Length: Medium
Encoder Type: Incremental Encoder
Series: Second Generation
Brake: With Brake
Motor Flange Size: 87mm

Length: Short
Encoder Type: No Encoder Fitted
Series: Second Generation
Brake: Without Brake
Motor Flange Size: 87mm

Length: Short
Encoder Type: No Encoder Fitted
Series: Second Generation
Brake: With Brake
Motor Flange Size: 87mm

Length: Short
Encoder Type: Incremental Encoder
Series: Second Generation
Brake: Without Brake
Motor Flange Size: 87mm

Length: Short
Encoder Type: Incremental Encoder
Series: Second Generation
Brake: Without Brake
Motor Flange Size: 57mm

Length: Short
Encoder Type: No Encoder Fitted
Series: Second Generation
Brake: With Brake
Motor Flange Size: 57mm

Length: Short
Encoder Type: No Encoder Fitted
Series: Second Generation
Brake: Without Brake
Motor Flange Size: 57mm

Length: Long
Encoder Type: Incremental Encoder
Series: First Generation
Brake: With Brake
Motor Flange Size: 28mm

Length: Long
Encoder Type: Incremental Encoder
Series: First Generation
Brake: Without Brake
Motor Flange Size: 28mm

Length: Long
Encoder Type: No Encoder Fitted
Series: First Generation
Brake: Without Brake
Motor Flange Size: 28mm

Length: Short
Encoder Type: No Encoder Fitted
Series: Second Generation
Brake: Without Brake
Motor Flange Size: 42mm

Length: Short
Encoder Type: No Encoder Fitted
Series: Second Generation
Brake: With Brake
Motor Flange Size: 42mm

Length: Short
Encoder Type: Incremental Encoder
Series: Second Generation
Brake: Without Brake
Motor Flange Size: 42mm

Length: Short
Encoder Type: Incremental Encoder
Series: Second Generation
Brake: With Brake
Motor Flange Size: 42mm

Length: Short
Encoder Type: Incremental Encoder
Series: Second Generation
Brake: With Brake
Motor Flange Size: 42mm

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Step, stepper or stepping motors are all names for brushless DC electric motors which work by dividing a full motor rotation into several equal steps. This enables the motor to move into position and hold there without any requirement for position sensors. Provided the motor is carefully programmed for its application, each step position can precisely govern the required torque and speed.

What are Stepper Motors?

Stepper motors are digital input-output devices and are controlled with digital pulses provided from the stepper motor controller. Stepper motors have multiple electromagnets positioned around a central gear-shaped iron core. These magnetically attract the teeth of each gear in turn and rotate the motor by a precise angle. A digital pulse from the controller moves the motor to move one increment one angle of motion, the increment is precise and the same every time, multiple digital pulses cause the movement to change into a continuous rotation. If a stepper motor were connected to an alternating current, the stepper motor would rotate continuously.

Stepper motors are used in applications where the complexity of a servo motor is not required; examples include; pick and place, winding tools and machine tools. Choosing a stepper motor requires the designer to know the torque and speed of the application. Once the torque and speed are known these can then be compared against the manufacturer's torque-speed curve for correct stepper motor selection. Stepper motors are available in three basic forms; permanent magnet step motor, variable reluctance stepper motor and a hybrid stepper motor that is a combination of both permanent magnet and variable reluctance stepper motors. The stepper motors from Festo are all hybrid stepper motors.