United Motion Inc. is the U.S. subsidiary of Greensky Power Company, a professional motor and driver manufacturer with over 15 years of experience in motor industry.

Over the past decade, our portfolio has grown from traditional DC and induction motors to advanced BLDC/PMSM and servo systems featuring cutting-edge technologies. We also collaborate with world-class manufacturers such as Wolong Electric Drive and OLI Motion Control to provide reliable, application-appropriate drive solutions.

With one main manufacturing facility in China and a new facility under construction in Thailand, our annual production capacity is expected to reach 1,000,000 units in 2026 and continue to increase.

In North America, United Motion Inc. serves as your dedicated sales and technical support partner, helping you select and implement the right motor and drive solutions for your applications.

electric motor
UNITED MOTION INC.
greensky power
MOTORS
DRIVERS
APPLICATIONS

Lawn Mowing Robots

Lawn Mowing Robots

Modern lawn mowing robots require efficient, quiet, and precise operation to handle uneven terrain and long working hours. Compact, energy-saving BLDC motors provide the torque and durability these smart machines need, ensuring reliable performance and a longer lifespan. They help create cleaner, greener, and more autonomous lawn care systems for home and commercial use.
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Electric Bicycles

Electric Bicycles

Electric bicycles combine smooth acceleration, strong torque, and whisper-quiet motion for an enjoyable ride. Using BLDC or geared DC motors designed for energy efficiency and lightweight integration, e-bikes achieve better comfort and longer battery range. Ideal for daily commuting or long-distance cycling, they deliver dependable power and a seamless riding experience.
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Water Pumps

Water Pumps

Efficient water pump systems rely on stable torque, precise speed control, and long-term reliability. BLDC and PMDC motors make this possible with their durable construction, high efficiency, and low maintenance design. Suitable for residential, agricultural, and industrial use, these motors maintain steady water flow while helping reduce overall energy costs.
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Electric Kayaks

Electric Kayaks

Electric kayaks offer smooth propulsion, strong thrust, and a quiet, eco-friendly ride across the water. Compact and waterproof BLDC motors deliver efficient power with excellent corrosion resistance, allowing for longer trips and less energy consumption. Designed for outdoor adventure, they combine durability, performance, and comfort in one sleek system.
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Company News & Blogs

Top Mistakes to Avoid When Selecting a BLDC Motor

Top Mistakes to Avoid When Selecting a BLDC Motor

Top Mistakes to Avoid When Selecting a BLDC Motor Electric motors are everywhere in modern industry, but few components cause as many hidden problems as a poorly selected motor. Among all motor types, BLDC motors (Brushless DC motors) are now one of the most widely used solutions in automation, robotics, medical devices, EV subsystems, HVAC,

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Single-Phase vs Three-Phase Induction Motors: Which One Do You Need?

Single-Phase vs Three-Phase Induction Motors: Which One Do You Need?

Single-Phase vs Three-Phase Induction Motors: Which One Do You Need? Choosing the right induction motor is one of the most important decisions engineers, procurement teams, and equipment builders make. Motors directly affect energy use, reliability, maintenance cost, and overall system performance. Among all motor choices, the comparison between single-phase and three-phase induction motors is one

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Do Electric Cars Use AC or DC Motors?

Do Electric Cars Use AC or DC Motors?

Do Electric  Cars Use AC or DC Motors? Electric vehicles have moved from niche technology to mainstream transportation faster than many expected. As EV adoption grows, engineers, procurement teams, system integrators, and even curious buyers often ask the same fundamental question: do electric cars use AC or DC motors? The short answer is that most

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BLDC Motor Specifications Explained: Speed, Torque, Voltage & Power

BLDC Motor Specifications Explained: Speed, Torque, Voltage & Power

BLDC Motor Specifications Explained: Speed, Torque, Voltage & Power Brushless DC (BLDC) motors are now at the center of modern motion systems. They are used in factory automation, robotics, medical equipment, electric vehicles, HVAC systems, and many other applications where efficiency, control, and reliability matter. Yet for many buyers and engineers, BLDC motor specifications still

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Custom BLDC Motors vs Standard Motors: Which Should You Choose?

Custom BLDC Motors vs Standard Motors: Which Should You Choose?

Custom BLDC Motors vs Standard Motors: Which Should You Choose? In today’s competitive industrial and commercial landscape, electric motors are no longer simple components hidden inside machines. They directly affect product performance, energy efficiency, reliability, noise level, and even brand reputation. Among all motor types, brushless DC motors, commonly known as BLDC motors, have become

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Why BLDC Motor is Used in Electric Vehicle?

Why BLDC Motor is Used in Electric Vehicle?

Why BLDC Motor Is Used in Electric Vehicles? Electric vehicles are changing how people think about transportation, energy use, and mobility. At the center of this change is the electric motor. Among many motor types, the Brushless DC motor, commonly known as the BLDC motor, has become a preferred choice in modern electric vehicles. This

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Customer Service

 

United Motion Inc.’s motion solution apply in diverse areas all around the world.

Our sales and engineering support teams are ready to assist you with any questions, including quotation, application support, and product configuration.

Please submit your requirements through our Custom Service Form to ensure a faster response. Or you can reach us at info@unitedmotioninc.com  for general inquiries.

Tell Us About Your Application Requirements

 

United Motion Inc welcomes  inquiries and challenges. If you find our standard products cannot meet your need, please feel free to contact us for customization. Our professional engineering and service team will quickly review your need and propose a solution if we can make it. 

We look forward to communicating and collaborating with you!

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