Nema 23 1.8 Degree 4A 57mm Gear Stepper Motor

Basic Information
Place of Origin: CHINA
Brand Name: Prostepper
Certification: CE/ISO/RoHS
Model Number: PST57H255-4L40G
Minimum Order Quantity: 10pcs
Price: Negotiable
Packaging Details: 39*25*24cm
Delivery Time: 7-25 work days
Payment Terms: T/T, Western Union, L/C
Supply Ability: 250000pcs per month
Motor Type: Gear Box Stepper Motor Current: 4A
Step Angle: 1.8 Degree Color: Black And Sliver
Length: 55.5mm HS Code: 8501109990
MOQ: 10pcs
High Light:

57mm Gear Stepper Motor


4A Gear Stepper Motor


high torque geared stepper motor


Nema23 1.8 degree Bi-polar Gear Stepper Motor 57mm for office automation



NEMA 8, 10, 11, 14, 16, 17, 23, 24, 34,

2 Phase, Step Angle 1.8° 0.9°   3 Phase, Step Angle 1.2°  5 Phase, Step Angle 0.36° 0.72°



High Reliability, High Accuracy, High Torque

Smooth Movement, Low Noise & Vibration & Heating



type Planetary
Housing material Metal
No-load Backlash <25arcmin
Bearing at output Ball Bearing
Operating temperature range -30°C~+80°C

What is stepper motor

Stepper motor is a control motor that provide precise position and speed control.

Stepper motor can convert an electrical pulse signal into an angular and linear motion, no need for feedback device to sense position. Also, the speed and acceleration of the motor rotation can be controlled by controlling the pulse frequency to achieve the purpose of speed regulation. The motor and drive constitutes a low cost control system that is simple to construct.


Features of prosteppers’ stepping motor

Accurate Position Control

The angular displacement of the stepping motor can be precisely controlled by the number of electric pulses. Angle accuracy can be controlled within ±0.09゜without any feedback devices.

Forward/Reverse Rotation, Pause and Hold

The forward/reverse rotation of the stepper motor can be controlled by the input sequence of the controlled electric pulses.

In case of a stepper motor lock (the motor winding is energized, there is no external electric pulse command), the stepper motor can still maintain a certain torgue output.

Longer life

Stepper motor is a mechanical structure, which does not need to be commutated by brush and Hall sensor, thus reducing the probability of failure and increasing the motor life. Stepping motor life usually determined by the life of the bearing.



Mode No:PST57H255-4L40G


Nema 23 1.8 Degree 4A 57mm Gear Stepper Motor 0




Reduction Stage Reduction Ratio


Torque N.m

Efficiency L2mm
1 3 25 95% 53
2 15 45 90% 70

 Nema 23 1.8 Degree 4A 57mm Gear Stepper Motor 1

Nema 23 1.8 Degree 4A 57mm Gear Stepper Motor 2

Nema 23 1.8 Degree 4A 57mm Gear Stepper Motor 3

Nema 23 1.8 Degree 4A 57mm Gear Stepper Motor 4


Quality control process:

Raw material inspection
Inspecting according to the standard of testing raw material or the drawing

Monitoring and measurement in production process

Self checking-tested by QC-Batches production

Final checking and make experiment

All products should be through testing by the professional equipment



Which application fields of stepper motor ?


Our products have wide applications in office automation such as printers, typewriters, copying machines and fax machines; automatic controls in automobile, machinery, textile, bank, monitor, medical instrument, stage lighting  and Industrial Communication Device; household appliances such as kitchen appliance, water heater and sewing machine


How to select a suitable motor?
A:If you have motor pictures or drawings to show us, or you have detailed specs like voltage, speed, torque, motor size, working mode of the motor, needed lifetime and noise level etc, please do not hesitate to let us know, then we can recommend suitable motor per your request accordingly.

Do you have a customized service for your standard motors?
A: Yes, we can customize per your request for the voltage, speed, torque and shaft size/shape. If you need additional wires/cables soldered on the terminal or need to add connectors, or capacitors or EMC we can make it too.

Contact Details

Phone Number : +8618106129922

WhatsApp : +8618106129922