NEMA34 86mm Encoder Stepping Motor Standard Type 1.8 step motor

Product description

• Mechanical size 100% meet the requirements, to ensure that there is no greater error in the use proces
• High reliability, easy maintenance.Motor rotor structure accurate, no loss of step.Rotor special material, not stuck machine
• Online testing of technical parameters to ensure the consistency of data product parameters
• Stepper motors are economical, accurate, and easy to control, and they can operate reliably in a variety of environments (depending on the level of protection IP chosen) preferably in machines with additional enclosures or in clean environments
• The material is selected from well-known manufacturers at home and abroad. The advantages are light weight, good heat dissipation performance, good thermal conductivity, die-casting, good plasticity, higher elongation than iron, low noise, good motion stability, the disadvantages are high price, low hardness

Specifications

Encoder Specifications

Speed/Torque Characteristics(Reference Value)

Working principle of stepper motor

• To make the motor shaft turn, first one electromagnet is given power, which makes the gear’s teeth magnetically attracted to the electromagnet’s teeth. The point when the gear’s teeth are thus aligned to the first electromagnet, they are slightly offset from the next electromagnet. So when the next electromagnet is turned ON and the first is turned OFF, the gear rotates slightly to align with the next one and from there the process is repeated. Each of those slight rotations is called a step, with an integer number of steps making a full rotation. In that way, the motor can be turned by a precise. Stepper motor doesn’t rotate continuously, they rotate in steps. There are 4 coils with a 90o angle between each other fixed on the stator. The stepper motor connections are determined by the way the coils are interconnected. In a stepper motor, the coils are not connected. The motor has a 90o rotation step with the coils being energized in a cyclic order, determining the shaft rotation direction. The working of this motor is shown by operating the switch. The coils are activated in series in 1-sec intervals. The shaft rotates 90o each time the next coil is activated. Its low-speed torque will vary directly with current.

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Advantages of Stepper Motor:

• 1. The rotation angle of the motor is proportional to the input pulse.
• 2. The motor has full torque at standstill.
• 3. Precise positioning and repeatability of movement since good stepper motors have an accuracy of 3 – 5% of a step and this error is noncumulative from one step to the next.
• 4. Excellent response to starting, stopping, and reversing.
• 5. Very reliable since there are no contact brushes in the motor. Therefore the life of the motor is simply dependant on the life of the bearing.
• 6. The motor’s response to digital input pulses provides open-loop control, making the motor simpler and less costly to control.
• 7. It is possible to achieve very low-speed synchronous rotation with a load that is directly coupled to the shaft.
• 8. A wide range of rotational speeds can be realized as the speed is proportional to the frequency of the input pulses.