You are here: Home » Capabilities » FAQ


  • Q What is a stepper motor used for?

    A stepper motor is a type of electric motor that is used to precisely control its position and speed.  It is commonly used in a variety of industrial and consumer applications, such as robotics, automation, CNC machines, 3D printers, and more.
    Stepper motors work by converting electrical pulses into precise mechanical movements.  They have a rotor with teeth that align with a set of electromagnets, called stator coils.  By energizing the stator coils in a specific sequence, the motor can rotate in small, precise steps, allowing for accurate control of position and speed.
    One of the key advantages of stepper motors is their ability to maintain position without the need for a feedback sensor, which simplifies their control and reduces costs.  They are also known for their high torque at low speeds, making them well-suited for applications that require precise control over position and movement.
    Overall, stepper motors are a versatile and widely-used type of electric motor that offer precise control and accuracy, making them an ideal choice for many applications in various industries.

    The types of Stepper motors recommended by HOLRY are Hybrid Stepper Motor,Gearbox Stepping Motor,PM Stepper Motor,Special Stepper Motor,Closed Loop Stepper Motor.
  • Q Differences between brushed and brushless DC motors?

    To keep the shaft of a DC motor rotating in the same direction, there is a need for a mechanism to switch the direction of the electric current flow once every half-rotation (a process called "commutation").  Brushed DC motors achieve this by mechanical means, using a commutator and brushes.
    However, because this mechanism relies on the brushes and commutator remaining in electrical contact as the shaft rotates, these parts tend to wear from friction over extended use.  In other words, they are consumable parts and require periodic maintenance.  Another problem is that this continuous electrical contact generates both electrical and acoustic noise.
    In contrast, brushless DC motors eliminate the need for brushes and commutator by instead incorporating an electronic circuit that detects the angular position of the shaft.  This also eliminates the associated maintenance, and reduce noise.
  • Q What is the difference between AC and DC brushless motor?

    A Brushless DC motors are similar to AC synchronous motors.  The major difference is that synchronous motors develop a sinusoidal back EMF, as compared to a rectangular, or trapezoidal, back EMF for brushless DC motors.  Both have stator created rotating magnetic fields producing torque in a magnetic rotor.
  • Q Which is better brushless vs brushed motor?

    A Brushless motors have significantly higher efficiency and performance, and a lower susceptibility to mechanical wear than their brushed counterparts.  Brushless motors offer several other advantages, including: Higher torque to weight ratio.  Increased torque per watt of power input (increased efficiency)
  • Q Why brushless motor is faster?

    A Brushless motors solve the limitations of brushed motors, providing much higher output power, smaller size and weight, better heat dissipation and efficiency, wider operating speed ranges, and very low electrical noise operation.  When it comes to torque and power, brushless motors can't be beat.
  • Q Why is a brushless motor better?

    A Because there are no brushes rubbing against anything, no energy is lost due to friction.  That means brushless motors are more energy-efficient than brushed drills and can run on batteries for up to 50 percent longer.
  • Q what is a brushless motor?

    A brushless motor is an electric motor that operates without the use of brushes. It uses a series of magnets and electronically controlled commutation to produce rotational force. Unlike traditional electric motors, which use brushes and a commutator to switch the current direction and keep the rotor turning, brushless motors use electronic circuitry to control the rotation of the motor.
    Because there are no brushes to wear out, brushless motors are more efficient, reliable and have longer lifespans compared to brushed motors. They are commonly used in applications where high power and efficiency are required, such as in drones, electric vehicles, industrial machinery, and power tools. However, brushless motors are generally more expensive than brushed motors due to their advanced design and complexity.

    Types of Brushless Motor are:

  • Q What are different types of linear actuators?

    A There are three types of Linear Actuators used in manufacturing: Hydraulic, Pneumatic, and Electro-Mechanical.
  • Q What are linear and rotary actuators?

    A Linear actuators move an object or piece of equipment in a straight line. ... A rotary actuator produces a rotary motion via a shaft to control the speed, rotation and position of any attached equipment.
  • Q What do you mean by linear actuator?

    A What is a Linear Actuator? An electric linear actuator is a device that converts the rotational motion of an AC or DC motor into linear motion. It can provide both push and pull movements. This movement makes it possible to lift, drop, slide, adjust, tilt, push or pull objects with the simple push of a button.