Micro DC motors are known for their compact size, stable power output, and wide range of applications. They are widely used in household appliances, medical devices, smart electronics, DIY projects, and other end-user products. Below is an overview of typical micro motor models offered by Guang Dong Lihua Mechatronics Co., Ltd. (Shen Zhen Hua Chuang Sheng Motor Co., Ltd.), categorized by series:
300 Series Motors
Diameter: 24.4mm
Brush Type: Precious metal brushes (mainly)
Typical Applications: Electric valves, DIY toys
This series is favored for its low noise and excellent conductivity, making it suitable for applications with high sensitivity and long-life requirements.
320 Series Motors
Diameter: 24.4mm
Brush Type: Available in both precious metal and carbon brush versions
Typical Applications: Miniature air pumps
Customers can choose brush materials according to their product’s lifecycle expectations and cost considerations.
310/330 Series Motors
Diameter: 24.4mm
Typical Applications: General-purpose micro drive mechanisms
These are highly versatile models that can be tailored to meet different performance requirements based on customer needs.
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| RF-300 Mini Motor Various Motor Speed | RF-310/330 Micro Motor DIY Motor for Science | RF-320 Standard Motor Dual Shaft 24mm Diameter Motor |
RF/RK-370 Series Motors
Diameter: 24.4mm
Typical Applications: Mini air pumps, portable instruments
Known for compact size and stable performance, these motors are commonly used in medical equipment and handheld devices.
RS-360/365 Series Motors
Diameter: 27.7mm
Structure: Carbon brush design
Typical Applications: Household appliances, hair dryers, power tools
With strong torque output, this series is ideal for precision devices requiring consistent high performance.
RS-380/385 Series Motors
Diameter: 27.7mm
Length: 37.8mm
Features: Compact size, powerful output
Typical Applications: Home appliances, miniature pumps
They are ideal for compact devices requiring stable and reliable power delivery.
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| RF/RK-370 Series Motors | RS-360/365 Series Motors | RS-380/385 Series Motors |
RS-390/395 Series Motors
Diameter: 27.7mm
Length: 46.5mm
Features: Longer body than 385 model with enhanced torque
Typical Applications: High-load small equipment
These motors provide stronger torque output, meeting the demands of heavier-load applications.
RK-3030 / RK-3042 Series Motors
Diameter: 30mm
Structure: Primarily carbon brushes
Typical Applications: Mini air pumps, water pumps, smart sanitary devices
Commonly used with pump assemblies in products like smart toilets and automatic hand-washing devices.
RF/RK-500 / 510 Series Motors
Diameter: 32mm
Length: Approx. 20mm
Features: Short body, flexible mounting
Typical Applications: Aroma diffusers, soap dispensers, warning lights, smart trash bins
These motors are suitable for smart devices with tight space constraints.
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| RS-390/395 Series Motors | RK-3030 / RK-3042 Series Motors | RF/RK-500 / 510 Series Motors |
RF/RK-520 Series Motors
Diameter: 33mm
Length: 23mm
Typical Applications: Side brushes of robot vacuums, medical ventilators
This model offers a well-balanced combination of torque and speed, ideal for high-speed rotating mechanisms.
RF/RK-528 Series Motors
Diameter: 33mm
Length: 30mm
Typical Applications: Mini air pumps, gear motor-equipped home appliances
Widely used in the air pump industry, and can be customized into gear motor configurations.
RS/RK-540/545 Series Motors
Diameter: 35.8mm
Length: 50mm
Power Output: Up to 110W
Typical Applications: Vacuum cleaners, power tools, electric wine openers
This series features high power output and is well-suited for demanding workloads.
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| RF/RK-528 Series Motors | RS/RK-540/545 Series Motors |
RS-550/555 Series Motors
Diameter: 35.8mm
Length: 57mm
Torque: Up to 2000g·cm
Typical Applications: Air pumps, massagers
With strong output capabilities, these motors are adaptable to a wide range of functional products.
RS-750/775 Series High-Torque Motors
Diameter: 42mm
Length: 60mm
Structure: Carbon brush
Typical Applications: Power tools, industrial equipment
As our largest DC motor series, it supports 6V to 36V applications, delivering both torque and speed—ideal for industrial and heavy-duty machinery.
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| RS-750/775 Series High-Torque Motors |
Notes:
The above specifications are summarized based on the product data from Guang Dong Lihua Mechatronics Co., Ltd. (Shen Zhen Hua Chuang Sheng Motor Co., Ltd.).
All motor dimensions are subject to a measurement tolerance of 0.5–1mm depending on tools and methods.
"Motor length" refers to the housing only and does not include shaft or terminal length.
All motors are customizable—voltage (1V–36V), dimensions (diameter from 4.5mm to 45mm), and other parameters can be tailored to your application needs.
Lihua Motor offers a complete line of micro DC motors with diameters ranging from 24.4mm to 42mm. With multiple brush material options and a broad performance spectrum from low-power drive to high-torque output, these motors are widely used in air pumps, water pumps, power tools, smart appliances, and medical equipment. Backed by over 20 years of expertise and a team of 10 professional engineers, Lihua Motor manufacturer is committed to delivering efficient, stable, and reliable motor ODM /OEM motor solutions to global customers.
Contact Us
Contact Person: Ms. Jailyne
Phone / WhatsApp / Skype: +86 13631599864
Email: sell02@hcsmotors.com
For inquiries about custom specifications or technical support, feel free to reach out to us.
