Stepper Motor NEMA 34 45kg-cm

Our Stepper Motor Nema 34 45kg-cm are great for position control. They can be found in desktop printers, plotters, 3d printers, CNC milling machines, and anything else requiring precise position control. These are a special segment of brushless motors. They are purposely built for high-holding torque. This high-holding torque gives the user the ability to incrementally “step” to the next position. This results in a simple positioning system that doesn’t require an encoder. This makes stepper motor controllers very simple to build and use.

This is a Bipolar stepper

Technical Specification

Form Factor	Nema 34
Step Angle	1.8 deg.
Motor Length	80 mm
Rated Voltage	2.2 V
Rated Current	5.5A
Phase Resistance	0.4 Ohms
Phase Inductance	3.5 mH
Holding Torque	45 kg-cm
No. of Lead Wires	4
Detent Torque	6.5 N-cm
Motor Weight	1 kg

 

Wiring Diagram

Advantages

• Low cost for control achieved
• High torque at startup and low speeds
• Ruggedness
• Simplicity of construction
• Can operate in an open loop control system
• Low maintenance
• Less likely to stall or slip
• Will work in any environment
• Can be used in robotics on a wide scale.
• High reliability
• The rotation angle of the motor is proportional to the input pulse.
• The motor has full torque at standstill (if the windings are energized)
• Precise positioning and repeatability of movement since good stepper motors have an accuracy of 3 – 5% of a step and this error is non-cumulative from one step to the next.
• Excellent response to starting/stopping/reversing.
• 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.
• The motors response to digital input pulses provides open-loop control, making the motor simpler and less costly to control.
• It is possible to achieve very low-speed synchronous rotation with a load that is directly coupled to the shaft.
• A wide range of rotational speeds can be realized as the speed is proportional to the frequency of the input pulses.

Disadvantages

• Require a dedicated control circuit
• Use more current than D.C. motors
• Torque reduces at higher speeds
• Resonances can occur if not properly controlled.
• Not easy to operate at extremely high speeds.