Stepper motor EMMB-ST-57-M-SM 8156139

Product Description

Stepper motor EMMB-ST-57-M-SM 8156139 Absolute encoder, single or multiturn (without battery) Optionally with holding brake 3 flange sizes MH: 0.22 Nm … 5.3 Nm OCP cable (one cable plug) with space-saving plug, can be positioned to the front or rear Motor in IP20, without UL certification “Electronic rating plate” with motor correction table Cable length of up to 25 m

For simple positioning applications with reduced requirements: the durable series of stepper motors in two-phase hybrid technology.
Small increments and high driving torques thanks to 2-phase hybrid technology
Optimised connection technology
Four sizes with flange sizes 28, 42, 57 and 87
28 types in stock
With incremental encoder for closed-loop operation
Degree of protection IP40 (motor shaft), IP54 (sizes 42, 27, 87: motor housing and plug connection), IP65 (size 28: motor housing and plug connection)
Optionally with holding brake

Festo stepper motors
Stepper motors enable precise positioning operations, and so they are used when high accuracy is required for demanding positioning tasks. They consist of a stationary stator and a rotor rotating inside it, which is driven by torque generated by differently aligned magnetic fields in the stator and rotor. The rotor always turns in such a way that the greatest possible magnetic flux is created. Stepper motors are primarily used in factory automation, but are also increasingly being used in machine and plant building.

Advantages of stepper motors
Stepper motors are characterised by a very high torque at a low rotational speed. This enables the application to be both started quickly and – thanks to the high holding torque – to be stopped easily too. The direction of rotation can also be changed quickly and at any time. Other important advantages of stepper motors are the high accuracy they offer during operation and the easy monitoring of the rotor position. In addition, stepper motors do not have brushes, which contributes significantly to the high mechanical resistance of the application.