Stepper Motors

A stepper motor is used as an output in electronic circuits. The motor is a brushless DC electric motor that divides a full rotation into a number of equal steps.

The motor’s position can then be made to move and hold at one of these steps without any position sensor for feedback as long as the motor is carefully sized to the application in respect to torque and speed.

Multiple coils are organised in phases (groups). By energising each phase in sequence the motor will rotate, one step at a time.

Why and when to use a Stepper Motor?

With a computer controlled stepping you can achieve very precise positioning and/or speed control.
•Steppers move in precise repeatable steps, they are perfect to use where precise positioning is needed such as 3D printers, CNC and camera platforms.


•Some disk drives use stepper motors to position the read/write head.


•Precise increments of movement also allow for excellent control of rotational speed for process automation and robotics.


•A Stepper motor has maximum torque at low speeds, so they are a good choice for applications where low speed with high precision is needed.



Stepper motor types
•Bipolar drivers use H bridge circuitry to reverse the current flow through the phases. By energising the phases with alternating the polarity all the coils can be put to work turning the motor.


•Permanent magnet motors use a permanent magnet in the rotor. They operate based on the principle that minimum reluctance occurs with minimum gap, meaning the rotor points are attracted towards the stator magnet poles.


•Unipolar drivers always energise the groups in the same way. The common lead will always be negative. They can be implemented with simple transistor circuitry.



Advantages of step motors
•Low cost


•High reliability


•High torque at low speed


•Full torque at standstill

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Omschrijving Prijs Step Angle Holding Torque Number Of Wires Voltage Rating Frame Size Stepper Motor Type Shaft Diameter Current Rating Winding Arrangement Shaft Length Depth Number of Pole Pairs Resistance Per Phase Detent Torque
RS-stocknr. 181-6692
FabrikantnummerEMMS-ST-87-S-SB-G2
FabrikantFesto
489,64 €
Each
Aantal stuks
1.8° - - 48 V dc - Hybrid 11mm 9.5 A - 27mm 132.6mm - 0.1Ω -
RS-stocknr. 181-6693
FabrikantnummerEMMS-ST-87-S-SEB-G2
FabrikantFesto
644,26 €
Each
Aantal stuks
1.8° - - 48 V dc - Hybrid 11mm 9.5 A - 27mm 125.6mm - 0.1Ω -
RS-stocknr. 181-6702
FabrikantnummerEMMS-ST-28-L-SE
FabrikantFesto
318,28 €
Each
Aantal stuks
1.8° - - 48 V dc - Hybrid 5mm 1.4 A - 20mm 70mm - 2.3Ω -
RS-stocknr. 181-6694
FabrikantnummerEMMS-ST-87-M-S-G2
FabrikantFesto
238,39 €
Each
Aantal stuks
1.8° - - 48 V dc - Hybrid 11mm 9.5 A - 27mm 114.9mm - 0.23Ω -
RS-stocknr. 181-6680
FabrikantnummerEMMS-ST-42-S-SB-G2
FabrikantFesto
390,42 €
Each
Aantal stuks
1.8° - - 48 V dc - Hybrid 5mm 1.8 A - 24mm 114mm - 1.75Ω -
RS-stocknr. 181-6699
FabrikantnummerEMMS-ST-87-L-SE-G2
FabrikantFesto
412,32 €
Each
Aantal stuks
1.8° - - 48 V dc - Hybrid 11mm 9.5 A - 27mm 174.9mm - 0.23Ω -
RS-stocknr. 181-6703
FabrikantnummerEMMS-ST-28-L-SEB
FabrikantFesto
749,16 €
Each
Aantal stuks
1.8° - - 48 V dc - Hybrid 5mm 1.4 A - 20mm 96mm - 2.3Ω -
RS-stocknr. 181-6688
FabrikantnummerEMMS-ST-57-M-SB-G2
FabrikantFesto
417,47 €
Each
Aantal stuks
1.8° - - 48 V dc - Hybrid 6.35mm 5 A - 20.6mm 145mm - 0.25Ω -
RS-stocknr. 181-6683
FabrikantnummerEMMS-ST-57-S-SE-G2
FabrikantFesto
261,58 €
Each
Aantal stuks
1.8° - - 48 V dc - Hybrid 6.35mm 5 A - 20.6mm 102.5mm - 0.15Ω -
RS-stocknr. 181-6684
FabrikantnummerEMMS-ST-57-S-SB-G2
FabrikantFesto
399,43 €
Each
Aantal stuks
1.8° - - 48 V dc - Hybrid 6.35mm 5 A - 20.6mm 123.5mm - 0.15Ω -
RS-stocknr. 181-6695
FabrikantnummerEMMS-ST-87-M-SE-G2
FabrikantFesto
393,00 €
Each
Aantal stuks
1.8° - - 48 V dc - Hybrid 11mm 9.5 A - 27mm 144.9mm - 0.23Ω -
RS-stocknr. 181-6686
FabrikantnummerEMMS-ST-57-M-S-G2
FabrikantFesto
153,34 €
Each
Aantal stuks
1.8° - - 48 V dc - Hybrid 6.35mm 5 A - 20.6mm 95mm - 0.25Ω -
RS-stocknr. 181-6691
FabrikantnummerEMMS-ST-87-S-SE-G2
FabrikantFesto
380,12 €
Each
Aantal stuks
1.8° - - 48 V dc - Hybrid 11mm 9.5 A - 27mm 112.6mm - 0.1Ω -
RS-stocknr. 181-6701
FabrikantnummerEMMS-ST-87-L-SEB-G2
FabrikantFesto
676,48 €
Each
Aantal stuks
1.8° - - 48 V dc - Hybrid 11mm 9.5 A - 27mm 214.9mm - 0.23Ω -
RS-stocknr. 181-6679
FabrikantnummerEMMS-ST-42-S-SE-G2
FabrikantFesto
248,68 €
Each
Aantal stuks
1.8° - - 48 V dc - Hybrid 5mm 1.8 A - 24mm 94mm - 1.75Ω -
RS-stocknr. 181-6698
FabrikantnummerEMMS-ST-87-L-S-G2
FabrikantFesto
257,71 €
Each
Aantal stuks
1.8° - - 48 V dc - Hybrid 11mm 9.5 A - 27mm 144.9mm - 0.23Ω -
RS-stocknr. 181-6700
FabrikantnummerEMMS-ST-87-L-SB-G2
FabrikantFesto
521,86 €
Each
Aantal stuks
1.8° - - 48 V dc - Hybrid 11mm 9.5 A - 27mm 194.9mm - 0.23Ω -
RS-stocknr. 181-6689
FabrikantnummerEMMS-ST-57-M-SEB-G2
FabrikantFesto
543,74 €
Each
Aantal stuks
1.8° - - 48 V dc - Hybrid 6.35mm 5 A - 20.6mm 159.5mm - 0.25Ω -
RS-stocknr. 181-6705
FabrikantnummerEMMS-ST-28-L-S
FabrikantFesto
186,07 €
Each
Aantal stuks
1.8° - - 48 V dc - Hybrid 5mm 1.4 A - 20mm 70mm - 2.3Ω -
RS-stocknr. 181-6681
FabrikantnummerEMMS-ST-42-S-SEB-G2
FabrikantFesto
512,83 €
Each
Aantal stuks
1.8° - - 48 V dc - Hybrid 5mm 1.8 A - 24mm 127mm - 1.75Ω -