China Professional Speed Variator Speed Ratio 1.4 to 7

Product Description


The design of UDL series planet cone-disk step-less speed variator compromises the advanced technology both at home and abroad. 

The products include the following main characteristics:

1) High speed regulating precision,up to 0.5-1 rotation

2) Large speed changing range:the speed ratio ranges from 1:4 to 1:7 freely

3) High in strength and long in service life

4) Convenient to regulate the speed

5) Continuous in running, front to back in running direction,smooth in driving,stable in performance and low in noise

6) Full in sealing and suitable for any environment

7) Compact in structure and small in volume

8) Made of high-quality aluminium alloy diecast into forming,good surface,light in weight and it never gets rusty

9) Good in adaptation: UDL series planet cone-disk stepless speed variators can be combined with all kinds of speed reducers as to achieve low stepless speed changing

UDL series planet cone disk stepless speed variators are widely used for foodstuffs,ceramics,packing,chemicals,pharmacy,plastics,paper making, mchine-tools, transportation,and all kinds of automatic production lines,pipelines and assembly lines which need is a good companion for your production.

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Application: Motor, Electric Cars, Motorcycle, Machinery, Marine, Toy, Agricultural Machinery, Car
Function: Distribution Power, Clutch, Change Drive Torque, Change Drive Direction, Speed Changing, Speed Reduction, Speed Increase
Layout: Three-Ring


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Currency: US$
Return&refunds: You can apply for a refund up to 30 days after receipt of the products.


Can variators be customized for specific industries or machinery configurations?

Yes, variators can be customized to meet the specific requirements of different industries and machinery configurations. Manufacturers of variators understand that different industrial applications may have unique needs in terms of load characteristics, operating conditions, control system integration, and other factors. As a result, they offer customization options to ensure optimal performance and compatibility. Here are some ways variators can be customized:

1. Load and Torque Ratings:

Variators can be customized to handle specific load requirements and torque ratings. Manufacturers can design and manufacture variators with different torque capacities to match the demands of different machinery or equipment. This customization ensures that the variator can effectively handle the expected load conditions without exceeding its torque limitations or compromising performance.

2. Speed Range:

Depending on the machinery configuration and application requirements, variators can be customized to provide the desired speed range. Manufacturers can adjust the gear ratios and design the variators to operate within specific speed ranges to match the speed requirements of the machinery. This customization allows for precise control and optimization of the machinery’s speed performance.

3. Environmental Considerations:

Variators can be customized to meet specific environmental conditions. Certain industries or machinery configurations may require variators that can withstand harsh environments, such as high temperatures, extreme humidity, or exposure to dust and debris. Manufacturers can incorporate enhanced protection and sealing mechanisms to ensure the variators can operate reliably in these challenging conditions.

4. Control System Integration:

Variators can be customized to integrate seamlessly with different control systems. Manufacturers can adapt the communication interfaces and protocols of the variators to match the specific requirements of the machinery’s control architecture. This customization allows for smooth integration with existing control systems, such as programmable logic controllers (PLCs) or other automation systems.

5. Mounting and Form Factor:

Variators can be customized to accommodate specific mounting configurations and form factors. Different machinery configurations may require variators with specific dimensions, mounting options, or shaft configurations to ensure proper installation and compatibility. Manufacturers can provide custom solutions to meet these specific mounting and form factor requirements.

6. Additional Features and Accessories:

Manufacturers can offer customization options by incorporating additional features and accessories into the variators. These can include specialized connectors, monitoring sensors, remote control capabilities, or specific software functionalities. By tailoring the variators with these additional features, they can better align with the unique needs of the industry or machinery configuration.

7. Compliance with Industry Standards:

Variators can be customized to meet specific industry standards and certifications. Depending on the industry or application, there may be specific regulatory or safety standards that variators need to comply with. Manufacturers can customize the design and manufacturing processes to ensure that the variators meet these standards and certifications.

In conclusion, variators can be customized to suit specific industries or machinery configurations. Manufacturers offer customization options to address factors such as load requirements, speed range, environmental conditions, control system integration, mounting configurations, additional features, and compliance with industry standards. By customizing variators, industries can ensure optimal performance and compatibility with their specific machinery and application needs.


How do electronic or computer-controlled variators improve performance and efficiency?

Electronic or computer-controlled variators, such as electronically controlled continuously variable transmissions (eCVTs), play a crucial role in improving the performance and efficiency of vehicles. These advanced variators utilize electronic control systems to optimize power delivery, adapt to driving conditions, and enhance overall drivetrain efficiency. Here’s a detailed explanation of how electronic or computer-controlled variators improve performance and efficiency:

1. Precise Control of Gear Ratios:

Electronic or computer-controlled variators offer precise control over the gear ratios. The electronic control systems continuously monitor various parameters such as vehicle speed, engine load, throttle input, and road conditions. Based on this information, the control system adjusts the gear ratios in real-time to ensure optimal power delivery. This precise control allows the engine to operate within its most efficient range, maximizing performance and improving fuel efficiency.

2. Adaptive Power Delivery:

Electronic or computer-controlled variators have the ability to adapt the power delivery based on driving conditions. The control system can analyze various factors, including vehicle speed, acceleration, and driver input, and adjust the gear ratios accordingly. For example, during highway cruising, the variator can keep the engine at lower RPMs to achieve better fuel efficiency. In contrast, during quick acceleration or overtaking, the variator can provide maximum power by adjusting the gear ratios for optimal performance. This adaptive power delivery enhances both performance and efficiency.

3. Optimization of Powerband Utilization:

Electronic or computer-controlled variators optimize the utilization of the engine’s powerband. The control system continuously adjusts the gear ratios to keep the engine operating within its optimal RPM range, where it generates the highest torque and power. By utilizing the engine’s powerband effectively, the variator ensures that the engine operates efficiently in a wide range of driving conditions. This optimization results in improved drivability, responsive acceleration, and better overall performance.

4. Seamless Transitions and Smooth Shifts:

Electronic or computer-controlled variators facilitate seamless transitions and smooth shifts between gear ratios. The control system ensures that gear changes are executed rapidly and with minimal interruption in power delivery. Unlike traditional transmissions with fixed gear steps, electronic variators can adjust the gear ratios continuously and steplessly. This eliminates the noticeable gear shifts and associated power interruptions, resulting in a smoother and more comfortable driving experience.

5. Integration with Vehicle Systems:

Electronic or computer-controlled variators can integrate with other vehicle systems to enhance performance and efficiency. They can communicate with the engine management system, traction control system, and other electronic control units to optimize the overall drivetrain operation. For example, the variator can work in conjunction with the engine management system to adjust the engine’s operating parameters based on the desired power delivery. This integration ensures coordinated and efficient operation of various vehicle systems, ultimately improving overall performance and efficiency.

6. Enhanced Efficiency through Advanced Control Algorithms:

Electronic or computer-controlled variators utilize advanced control algorithms to optimize performance and efficiency. These algorithms take into account multiple inputs, such as vehicle speed, engine load, temperature, and driver behavior, to make intelligent decisions regarding gear ratio adjustments. The control system can continuously learn and adapt to individual driving styles, further improving efficiency over time. The use of advanced control algorithms allows electronic variators to achieve higher levels of efficiency compared to traditional mechanical transmissions.

7. Real-Time Monitoring and Diagnostics:

Electronic or computer-controlled variators offer real-time monitoring and diagnostics capabilities. The control system can monitor the health and performance of various components within the variator, as well as detect any abnormalities or potential issues. This allows for proactive maintenance and timely repairs, ensuring optimal performance and reliability. Real-time monitoring and diagnostics contribute to the overall efficiency and longevity of the variator.

In conclusion, electronic or computer-controlled variators improve performance and efficiency through precise control of gear ratios, adaptive power delivery, optimization of powerband utilization, seamless transitions, integration with vehicle systems, advanced control algorithms, and real-time monitoring and diagnostics. These advanced variators optimize power delivery, enhance drivetrain efficiency, and provide a smoother, more responsive driving experience, ultimately improving both performance and fuel efficiency.


Are there specific applications where variators outperform other transmission systems?

Yes, there are specific applications where variators, particularly those used in continuously variable transmissions (CVTs), can outperform other transmission systems. The unique characteristics and capabilities of variators make them well-suited for certain scenarios. Here’s a detailed explanation of the specific applications where variators outperform other transmission systems:

1. Urban Driving and Stop-and-Go Traffic:

Variators excel in urban driving conditions and stop-and-go traffic situations. In congested areas with frequent speed changes, variators offer seamless and continuous gear ratio adjustment. This allows the engine to operate at optimal RPM levels, resulting in improved fuel efficiency and smooth power delivery. The absence of discrete gear shifts eliminates the need to constantly shift gears, providing a more effortless and comfortable driving experience.

2. Hill Climbing and Off-Road Driving:

When it comes to tackling steep inclines or challenging off-road terrains, variators can outperform other transmission systems. The continuous gear ratio adjustment of variators ensures that the engine maintains the appropriate power and torque delivery for climbing hills or traversing rough terrain. This adaptability allows vehicles equipped with variators to maintain momentum and traction, providing superior performance and control in demanding off-road conditions.

3. Smooth and Responsive Acceleration:

Variators offer excellent performance in terms of smooth and responsive acceleration. The stepless gear shifts provided by variators eliminate the jolts or interruptions in power delivery that can occur with traditional gear systems. This seamless acceleration allows for quick and efficient merging onto highways, overtaking other vehicles, or responding to sudden changes in traffic conditions. Variators can deliver a more engaging driving experience by providing instant response to throttle inputs.

4. Hybrid and Electric Vehicles:

Variators have proven to be advantageous in hybrid and electric vehicles. In hybrid vehicles, variators can be used in combination with internal combustion engines and electric motors to optimize efficiency and power delivery. The continuous gear ratio adjustment of variators allows for seamless integration between the different power sources, ensuring that the engine operates within its most efficient range. In electric vehicles, variators can be utilized to provide a smooth and efficient transfer of power from the electric motor to the wheels.

5. High-Performance Sports Cars:

In certain high-performance sports cars, variators can outperform traditional gear systems. Variators offer the advantage of quick and precise gear ratio adjustment, allowing the engine to stay within its optimal power band during aggressive acceleration and high-speed driving. This results in enhanced performance, improved acceleration, and seamless power delivery, making variators an attractive choice for sports car enthusiasts.

6. Fuel Efficiency and Emission Reduction:

Variators, especially those used in CVTs, are known for their potential to improve fuel efficiency and reduce emissions. The continuous gear ratio adjustment ensures that the engine operates at the most efficient RPM, maximizing fuel economy. By avoiding inefficient gear shifts, variators contribute to reduced fuel consumption and lower emissions, making them a preferred choice for eco-friendly and fuel-conscious vehicles.

In summary, variators can outperform other transmission systems in specific applications such as urban driving, stop-and-go traffic, hill climbing, off-road driving, smooth and responsive acceleration, hybrid and electric vehicles, high-performance sports cars, and fuel efficiency-focused applications. The unique characteristics of variators, including continuous gear ratio adjustment and seamless power delivery, make them well-suited for these scenarios, offering advantages in terms of performance, control, and efficiency.

China Professional Speed Variator Speed Ratio 1.4 to 7  China Professional Speed Variator Speed Ratio 1.4 to 7
editor by CX 2024-04-04