A 57 stepper motor is a common type of stepper motor, also known as a NEMA 23 stepper motor. The "57" in its name refers to the size of the motor housing, which is 57mm x 57mm. Such motors are typically driven by two or four phases, with each phase driven by a power supply and a controller. A stepper motor is a precision motor with discrete angles of rotation, typically 1.8 or 0.9 degrees. They are widely used in applications requiring high-precision positioning, speed control, and orientation control, such as printing, textiles, medical equipment, and robotics.
The current and torque of the stepper motor are two important parameters. Current is the current flowing through the motor driver and is the key factor in controlling the rotation of the motor. The torque of a stepper motor is the torque it is able to produce, usually proportional to the current. As the motor's current increases, its torque also increases until it reaches its maximum value. The maximum torque of the stepper motor is usually called the static torque, also known as the holding torque. When the motor rotates, the torque will gradually decrease with the increase of rotation speed, which is called dynamic torque. Therefore, when selecting a stepper motor, the required static and dynamic torque needs to be considered to ensure that the motor can meet the application requirements.
In addition to current and torque, stepper motors have some other characteristics, including number of steps, step angle, step accuracy, speed, and acceleration. These characteristics are usually listed in the technical specifications of the motor so that the user can choose the most suitable motor. In addition, there are many driving methods of stepper motors, including full stepping, half stepping, microstepping, etc., each driving method has different characteristics and application scenarios.NEMA 23 is a standard size for stepper motors, specified by the National Electrical Manufacturers Association (NEMA). These motors are commonly used in various applications, such as CNC machines, 3D printers, robotics, and other automation systems. The "23" in NEMA 23 refers to the faceplate dimensions, which are approximately 2.3 inches (58.4 mm) square.
Here are some general characteristics of NEMA 23 stepper motors:
The mounting faceplate has a square shape with dimensions of 2.3 inches (58.4 mm) on each side. The overall motor length can vary depending on the model and manufacturer.
Most NEMA 23 stepper motors have a step angle of 1.8 degrees, which means they have 200 steps per revolution. However, some motors may have different step angles, such as 0.9 degrees (400 steps per revolution).
The holding torque of NEMA 23 motors can range from around 0.4Nm to 2.8Nm (425 oz-in) or even higher, depending on the model and manufacturer.
The shaft diameter of NEMA 23 motors is typically 1/4 inch (6.35 mm) or 3/8 inch (9.525 mm), but it may vary depending on the specific model.
The voltage and current ratings of NEMA 23 motors can vary significantly, depending on the manufacturer and model. It's essential to consult the motor's datasheet for accurate specifications.
NEMA 23 stepper motors can be either bipolar or unipolar. Bipolar motors typically have 4 wires, while unipolar motors have 5, 6, or 8 wires. Bipolar motors can provide higher torque and better performance than unipolar motors but require more complex driver circuits.
When selecting a NEMA 23 stepper motor for your project, it's essential to consider factors such as the required torque, speed, voltage, current, and compatibility with your control system. Always consult the motor's datasheet for accurate specifications and ensure that the motor driver and power supply are suitable for the motor's requirements.
The working temperature of 57 stepper motors is usually between -20°C and +50°C. This means that the motor can operate within this temperature range without negatively affecting the performance and life of the motor. If this temperature range is exceeded, the performance and life of the motor may be affected.
In practical applications, it is necessary to select an appropriate stepper motor according to the specific working environment and application requirements. If the working environment temperature is high or there is a high temperature area, it is necessary to select a motor that can withstand high temperature. In addition, if the motor needs to work in a low temperature environment, it is also necessary to choose a motor that can operate normally at a low temperature. When selecting a motor, it is also necessary to consider the insulation level and protection level of the motor to ensure that the motor can operate safely in harsh working environments.
HOLRY is a company specializing in the R&D, production and sales of stepper motors and drivers, and its 57 stepper motor series is one of its main products. HOLRY 57 stepper motor has the following characteristics:
The stepping angle is 1.8 degrees, and the stepping precision is high, which can meet the requirements of high-precision positioning and control.
The static torque can reach 2.8 Nm, and the dynamic torque is also high, which can meet the application requirements of high load and high torque.
HOLRY 57 stepper motors are made of high-quality materials and precision manufacturing processes, featuring low noise and low vibration, and can meet the application scenarios that require high noise and vibration.
HOLRY 57 stepper motors can be used with different drivers and controllers, and can adapt to different application scenarios and working environments.
HOLRY 57 stepper motors are made of high-quality materials and precision manufacturing processes, with long life and high reliability, which can meet the application scenarios that require high motor life and reliability.
In a word, HOLRY 57 stepper motor has the characteristics of high precision, high torque, high speed, low noise, good adaptability and high reliability, and is suitable for a variety of application scenarios, such as machine tools, automated production lines, medical equipment, printing equipment, textile equipment, etc.
