Product Description
A Dual Axis Slewing Drive is a specialized type of slewing drive designed to provide rotational movement along two independent axes simultaneously within a single, integrated unit. This makes it particularly valuable for applications that require highly precise, multi-directional positioning, most notably in advanced solar tracking systems.
Instead of needing two separate single-axis slew drives mounted perpendicular to each other, a dual-axis slewing drive integrates both functionalities into one compact gearbox. This often involves a clever arrangement of gears and bearings to transmit power for both rotations from a single or sometimes two integrated motors.
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Features
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Applications
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| ✔ VD series slewing drive designed with two axis rotation which can make vertical drive and horizontal drive for solar tracker and other rotation machinery motion. | ▶ Dual-Axis Solar Trackers (PV, CPV, CSP Heliostats/Dishes): For maximum energy generation, especially in large-scale solar farms or situations where land use is optimized. |
| ✔ Easy installation with 24V DC electric motor and hydraulic motors for different project requests. | ▶ Satellite and Radar Dishes: For accurately pointing and tracking satellites or aircraft, maintaining strong signal reception or transmission. |
| ✔ More teeth touch, high torque, and stable rotation | ▶ Large Telescopes and Astronomical Instruments: For precise tracking of celestial objects across the sky. |
| ✔ Withstand major axial, radial loading, and tilting moment | ▶ Robotic Arms and Industrial Automation: In advanced robotics where multi-directional, precise movements are needed for tasks like welding, painting, or complex assembly. |
| ✔ Simultaneous Two-Axis Movement, The defining characteristic. It allows for continuous and precise alignment with a moving target in 3D space. | ▶ Specialized Cranes and Material Handling: Though less common than single-axis for typical cranes, some specialized lifting or positioning equipment might benefit from dual-axis capabilities. For example, truck crane, marine crane |
| ✔ Compact and Integrated Design, By combining two axes of movement into one unit, dual-axis slew drives save space, simplify mechanical designs, and often reduce installation complexity compared to assembling two single-axis drives. | ▶ The most prominent applications for dual-axis slewing drives are in systems that require highly accurate and continuous 3D orientation. |
| Parameter | Unit | Description | Typical Range (Example for Solar Trackers) |
| Output Torque | N.m | The continuous rotational force the drive can deliver. | 500 - 15,000 N.m |
| Holding Torque | N.m | The maximum static torque the drive can resist without back-driving (due to self-locking). | 2,000 - 70,000 N.m |
| Tilting Moment Torque | N.m | The drive's capacity to resist forces that try to overturn the attached load. | 1,000 - 80,000 N.m |
| Gear Ratio | Ratio | The ratio of the motor's input speed to the drive's output speed. | 60:1 to 120:1 |
| Tracking Precision | Degrees (∘) | The angular accuracy of positioning. | ≤0.25∘ |
| Max Output Speed | rpm | The maximum speed the drive's output can rotate (for each axis). | 0.05 - 1.0 rpm |
| Motor Rated Voltage | V DC | The nominal operating voltage for the integrated DC motor. | 24V DC |
| Motor Rated Power | W | The continuous power output of the integrated DC motor. | 50 - 300 W |
| IP Protection Class | IPxx | Ingress Protection rating against dust and water. | IP65 or IP66 |
| Operating Temperature | ∘C | The ambient temperature range for reliable operation. | -20$^\circCto+50^\circ$C |
| Self-Locking Feature | Yes/No | Indicates if the drive inherently holds its position without external brakes. | Yes |
1. Solar Energy Systems (Primary Application)
• Dual-Axis Solar Trackers (PV - Photovoltaic)
• Concentrated Solar Power (CSP) Systems
• Concentrated Photovoltaics (CPV) Systems
2. Satellite and Radar Antenna Positioning
3. Robotics and Automation (Niche/Specialized)
4. Specialized Mobile Equipment
According to your needs, we provide dual-axis slewing drives suitable for different working conditions, such as equipped with different types of motors, customized some specifications and parameters to suit your required scenarios.
Direct Compatibility: Many solar energy storage systems operate at 24V DC (or multiples), allowing for direct power supply without complex AC/DC conversion.
Battery Power: Ideal for off-grid systems or maintaining tracking during cloudy periods, as they can run directly from battery banks.
Control Simplicity: DC motors are often simpler to control for variable speed and precise positioning compared to complex AC systems, especially in remote, low-power environments.
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