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20MM Mini Stepper Motor 2 Phase Low Noise Small PM Stepper Motor

Model:20BY25-034A
Voltage: 6 V
Phase: 2
Resistance: 5 Ω
Speed: 3000 rpm
Torque:15 gf.cm
Connector: 4pin/ 5pin 1.25/1.5/ 2.0/ 2.5mm
Wire Length: 40mm~1000mm
Step Angle:18°
Exciting mode:Bipolar

Product description

20MM Mini Stepper Motor 2 Phase Low Noise Small PM Stepper Motor 

As is well known, micro stepper motors are widely and importantly used in security cameras. So why are stepper motors chosen over servo motors? The specific reasons can be summarized in the following four points:

  • Cost and Control Complexity
    This is the most critical decision factor. Stepper motors typically operate under open-loop control, relying solely on pulse signals for movement without requiring real-time position feedback. This eliminates the need for encoders and complex closed-loop control algorithms, which not only reduces the cost of system components but also simplifies development. In contrast, servo motors must rely on closed-loop control, utilizing built-in high-precision encoders to continuously provide position feedback. The drive must constantly adjust to achieve precise positioning, resulting in a more complex system structure and significantly higher costs. For mass-produced consumer-grade security cameras, cost control is particularly crucial.
  • Static Holding and Stability
    When a stepper motor is stationary and energized, it generates a reliable holding torque, achieving effective self-locking. This keeps the camera gimbal stably positioned at the target location without easy drift, thereby ensuring a shake-free image when stationary. In contrast, to maintain position, a servo motor requires continuous dynamic fine-tuning, which can easily cause current fluctuations and slight high-frequency jitter, adversely affecting image stability.
  • Low-Speed Smoothness and System Reliability
    Supported by modern microstepping drive technology, stepper motors operate smoothly and with low noise at low speeds, making them highly suitable for the smooth movement required in security camera gimbal scanning and tracking scenarios. Servo motors, however, may experience "cogging" or "jitter" at low speeds due to torque ripple or control response issues, affecting motion smoothness. Furthermore, the simpler structure of stepper motor systems means fewer potential points of failure, leading to higher overall reliability.
  • Power and Size Compatibility
    Security camera gimbals are typically low-load applications that do not require high driving torque. Micro stepper motors match these requirements well in terms of power and torque range, providing a precisely adequate performance configuration. While servo motors offer high dynamic response and overload capacity, their cost is higher for a comparable size. Using them in such applications represents performance overkill and lacks economic advantage.

 

MAINTEX: Your Expert Motor Solution from the Source

With 20 years of experience in motor R&D and manufacturing, MAINTEX solves these core challenges at the fundamental level. Our motors ensure your security cameras deliver smooth and steady oscillation, exceptionally quiet operation, precise movement within set ranges, accurate return to the initial position, and an extended product lifespan—providing a reliable and enduring 'heart' for your appliances.

Now, let's take a closer look at this geared stepper motor.

Why Choose Maintex as Your Small PM Stepper Motor  Supplier ?

1.Custom design drawings can be provided within 3 days
2.200+ patent
3.2-year warranty (70-person R&D team,offering remote support)
4.Support OEM/ODM
5.Provide certificates and test reports, such as ISO9001, IATF 16949, CE, ROHS, REACH and so on.
6.Collaborated with fortunne 500 companies 
7. MOQ:2000PCS (Custom samples upon request)
8. 24-hour on-line service

Advantages of Mini Stepper Motor

 Precise positioning, powerful torque smooth operation, low noise, long service life

  1. Precise Positioning: Unmatched Control Within a Hair's Breadth
    The micro stepper motor is controlled by pulse signals, with each pulse corresponding to a fixed angular displacement, enabling precise motion without cumulative error. This makes it an irreplaceable core component in dot matrix printers, ensuring every movement is accurate and faultless.
  2. Strong Torque, Stable Output
    It delivers powerful holding torque even at low speeds and in a stationary state, ensuring stable stoppage under load. It easily overcomes static friction, simplifying the transmission structure and enhancing system rigidity and response speed. This provides the dot matrix printer with ample force to strike through multi-part forms, guaranteeing clear, consistent print quality.
  3. Smooth and Quiet Operation
    Micro-stepping drive technology transforms discrete "stepping" motion into smooth, continuous movement. This effectively minimizes vibration and jerky motion during operation, thereby protecting the mechanical structure and enhancing print quality.
  4. Low-Noise Design for Quiet Operation
    Operational noise is a key indicator of modern equipment quality. By smoothing current control, vibration and noise are suppressed at the source. This allows integrated equipment, like office printers, to run more quietly, significantly improving the user experience and the working environment.
  5. Long Lifespan and High Reliability
    Featuring a brushless design and simple mechanical structure, the motor experiences minimal wear on its core components. It supports ultra-long, continuous, and stable operation, substantially reducing maintenance costs and downtime.

Why Choose MAINTEX 6V mini stepper motor for security cameras?

MAINTEX miniature stepper motors are selected for use in security cameras due to their outstanding performance in motion control and versatile applicability, as demonstrated in the following key application scenarios:
PTZ Control
MAINTEX miniature stepper motors provide reliable power for comprehensive camera movement control, accurately achieving the three core functions of PTZ:
Pan (Horizontal Rotation): The motors drive the gimbal to rotate smoothly and precisely left and right in the horizontal direction, easily achieving wide-area monitoring coverage.
Tilt (Vertical Movement): They control the camera's up and down tilting movement, flexibly capturing footage from areas at different heights.
Zoom Assistance: Beyond common optical zoom drives, the stepper motors can also be used to control mechanical zoom structures or assist in achieving high-precision focusing, enhancing the ability to capture image details.
Automatic Target Tracking
In coordination with intelligent recognition algorithms, MAINTEX stepper motors can quickly respond to system commands, driving the gimbal to follow moving targets (such as people or vehicles) smoothly and accurately. This ensures the target remains steadily centered in the frame, enhancing dynamic monitoring effectiveness.
Preset Position Tour
Users can pre-set multiple key monitoring positions (such as entrances, windows, or important facilities). The stepper motors swiftly and accurately direct the camera to these designated points based on commands and support automatic cycling between multiple points, enabling efficient, gap-free monitoring cycles.
Image Stabilization Function
In high-end camera systems, MAINTEX miniature stepper motors can be used to drive the lens or image sensor module. By performing real-time micro-adjustments to compensate for body shake caused by external factors like wind or vibration, they significantly improve image stability and ensure clear, blur-free footage.

2 Phase 6V 20MM Mini Stepper Motor  : Powerful Torque, consistent Output

Rock-Solid Performance from Low to High Speeds: The Reliable Torque of the 20BY25-034A Motor.

When faced with sudden load impacts during high-speed operation, ordinary motors often experience torque fluctuations, leading to loss of precision. However, the 20BY25-034A  stepper motor, leveraging two core technologies, delivers rock-solid stable torque from standstill to high speed, whether under smooth or shock loads, providing unparalleled power reliability for your equipment.

1. Optimized Gear Geometry: A Power Transmission Bridge with >95% Efficiency
We don’t just design gears—we sculpt an efficient, low-loss power transmission bridge.

  • Precision Tooth Profile Design: Computer-optimized simulation ensures maximum contact area and even stress distribution during gear engagement, fundamentally reducing power transmission gaps and losses.
  • >95% Transmission Efficiency: This means the force generated by the motor is delivered to the load with almost no loss. Every bit of torque your equipment receives is more "real," with more direct response, effortlessly handling sudden shocks and ensuring smooth and precise operation.

2. High-Performance Magnetic Steel: The Solid Foundation for Stable Torque
We understand that exceptional performance doesn’t rely solely on rare materials. The 20BY25-034A  uses high-performance magnetic steel, optimized through special formulations and processes, with meticulous electromagnetic design to maximize its potential.

  • Stable and Reliable Magnetic Field: The combination of optimized magnetic circuit design and carefully selected magnetic steel creates a sufficiently strong and stable air gap magnetic field, ensuring smooth torque output.
  • Outstanding Performance Across All Speeds: From startup to high speed, this optimized magnetic steel ensures consistent and stable motor torque, effectively preventing torque drop or loss of steps due to sudden load changes.
  • Perfect Balance of Cost and Performance: This choice highlights our superior design capability, allowing us to provide a highly reliable and cost-effective motor solution without relying on expensive rare-earth materials.

The powerful combination of these two core technologies forms the impeccable performance foundation of the 20BY25-034A —the high-efficiency transmission system ensures lossless power and rapid response, while the optimized magnetic steel and circuit provide a stable and reliable torque foundation. This fully demonstrates our engineering philosophy of enhancing the performance of standard materials through sophisticated design, offering you absolute composure in the face of complex working conditions and a high cost-performance choice.

Why does the china factory 6V mini stepper motor use pure copper wire windings?

The use of pure copper windings is key to ensuring motor performance and reliability. Its main advantages can be summarized in the following four points:

  1. Higher Efficiency, Greater Energy Savings
    Pure copper has low electrical resistance, generating less heat during operation and converting more electrical energy into driving force, resulting in higher efficiency.
  2. Stronger Torque, Enhanced Power
    Low resistance allows for higher instantaneous current, generating a stronger magnetic field, thereby delivering greater torque during startup and low-speed operation.
  3. Longer Lifespan, Improved Durability
    Pure copper offers excellent thermal conductivity and low heat generation, enabling rapid heat dissipation and effectively preventing motor burnout due to overheating, significantly extending service life.
  4. Stable Performance, Greater Reliability
    Copper material has superior mechanical strength compared to aluminum. Under prolonged high-temperature and high-vibration conditions, pure copper windings are less prone to deformation or breakage. Additionally, the soldering between copper and lead wires is more robust and reliable, effectively preventing motor failure caused by weak solder joints or broken wires. This ensures stable performance throughout the motor's entire lifecycle.

Custom Wholesale 2 Phase Low Noise Small PM Stepper Motor

To meet your specific stepper motor requirements, we offer in-depth customization services, providing precise adaptation for your unique applications. Our customization scope includes, but is not limited to, the following areas:

  1. Voltage Range: Flexible voltage options ranging from 6V to 12V make this motor suitable for projects with diverse power needs.
  2. Phase Options: Available in 2-phase and 4-phase configurations, allowing selection based on the control system requirements.
  3. Resistance: Customizable from 5Ω to 30Ω, enabling performance adjustments based on specific application needs.
  4. Speed Variations: Adjustable from 30rpm to 3000rpm, making it ideal for both high-precision and faster applications.
  5. Torque Range: Configurable torque between 3Kgf.cm to 1200gf.cm, suitable for projects with varying force requirements.
  6. Connector Types: 4-pin and 5-pin connectors in multiple sizes (1.25mm, 1.5mm, 2.0mm, 2.5mm), fitting diverse wiring setups.
  7. Wire Length: Customizable wire lengths from 40mm to 1000mm for easy installation in different environments.
  8. Step Angle Choices: Step angles of 3.75° or 18° are available for precision tuning
  9. At Maintex, we offer a range of customization options for the 20BY25 Stepper Motor, [Click here to learn more about customization options] like wiring and connectors, installation holes, gears, and logo printing. For projects needing stepper motor wholesale solutions, these features allow us to tailor the stepping motor 20BY25 to meet your project’s specific requirements. For more details, visit our customization page.

 

 

Model
20BY25-007A
20BY25-034A
20BY26-036
20BYJ25-002A
Rate Voltage
6 V
6 V
7 V
12 V
Phase
2
2
2
2
Resistance
10Ω±10%
5Ω±10%
11Ω±10%
15Ω±10%
Inductance
7.0 mH±20%
2.6 mH±20%
6.0 mH±20%
10.0 mH±20%
Step Angle
18°
18°
15°
18°
Exciting mode
Bipolar
Bipolar
Bipolar
Bipolar
Max No-load Pull-in Frequency
≥500PPS
≥500PPS
≥400PPS
≥800PPS
Max No-load Pull-out Frequency
≥700PPS
≥700PPS
≥700PPS
≥1100PPS
Holding Torque(min)
50gf.cm
50gf.cm
120gf.cm
3Kgf.cm
Rated Frequency
500PPS
1000PPS
600PPS
500PPS
No-load Speed
1500RPM
3000RPM
1500RPM
30RPM
Rated Torque (min)
35gf.cm
15gf.cm
45gf.cm
1Kgf.cm
Dimensions
φ20mm*18.5mm
φ20mm*19mm
φ20mm*16.5mm
φ20mm*36.8mm
Noise
50db
50db
50db
50db
Rotation
CW/CCW
CW/CCW
CW/CCW
CW/CCW
operation temperature
-10℃~50℃
-10℃~50℃
-10℃~50℃
-10℃~50℃
weight
29g
25g
24g
50g
weight
85g
86g
85g
 

All motors can be customized in torque/voltage/size etc.Pls contact us for more details and requirements

1.Customization of size and Structure2. Performance parameter customization 3. Customized functions and options 
4. Material and process selection5. Coil and magnet configuration6. Customization of leads and connectors

FAQ:

Q1: How to choose a motor to match my machine? 

A: Please offer us the key parameters of the motor such as physical size (diameter, length, etc), torque, voltage, power consumption, etc. Feel free to reach out to us, we are very glad to help you if you are confused in selection. 

Q2: Could you provide customized service? 

A: Yes, we can. All parameters can be customized according to your actual demands, for detailed information please contact us or leave a message. 

Q3: Can I order samples first? 

A: We stock many of our standard models. If you would like to test samples first, we are glad to send you some. Of course we do not stock specialized motors. If you have special needs, please let us know. 

Q4: Are you trading company or manufacturer? 

A: we are a manufacturer which is located in Shenzhen China. We have our own industrial park——Maintex Science & Technology Park covering an area of 53000+ square meters. Q5: How long is your delivery time? 

A: Generally about 5-10 days if the goods are in stock. Or it is 30 days if the goods are not in stock. It depends on the order quantity. 

Q6: Do you provide samples? 

A: Yes, sample can be offered in terms of your specific requirements. 

Q7: What kind of payment terms are available? 

A: We usually use TT and Paypal, but if you have special requirements, please talk with us. 

Q8: How do you control your product's quality? 

A: We have professional testing instruments and QC team, we will do full inspection for each mass production. 

Q9: What about your production capability? 

A: There are high precise auto assembly facilities and more than 60 assembly lines in our factory, we can produce more than 100 million pieces of motors per year.
 

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