Single Axis Slew Drive With Electric Motor 30 Years Field Life PV
Solar Tracking System
Single Axis Slew Drive Description
The main purpose of a slew drive is to enable the rotation of a
load around a fixed axis or to track the movement of a target. It
offers a high torque output and the ability to withstand heavy
axial and radial loads. Slew drives are commonly used in machinery
and equipment that require precise and continuous rotation, such as
solar tracking systems, cranes, wind turbines, satellite dishes,
excavators, and industrial turntables. Slew drives are designed to
provide precise motion control and high torque output while
maintaining compact dimensions. They often incorporate worm gears
or other types of gearing systems to achieve this. The gear ratio
of a slew drive determines the speed and torque characteristics of
the rotation. By adjusting the gear ratio and controlling the motor
speed, the rotational speed and positioning accuracy can be
tailored to suit specific requirements.
Performace of VE Series Slewing Drive
| Model | Ratio | Rated Output Torque(N.m) | Tilting Torque(N.m) | Holding Torque(N.m) | Axial Load(kN) | Radial Load(kN) | Efficiency | Precision(°) | Self-locking | Weight(kg) |
| 3" | 31:1 | 600 | 1500 | 1800 | 22 | 15 | 40% | ≤0.1 | Yes | 12 |
| 5" | 37:1 | 800 | 5000 | 9200 | 16 | 27 | 40% | ≤0.1 | Yes | 18 |
| 7" | 57:1 | 1750 | 7000 | 13200 | 34 | 58 | 40% | ≤0.1 | Yes | 32 |
| 8" | 51:1 | 2250 | 11200 | 20400 | 50 | 80 | 40% | ≤0.1 | Yes | 28 |
| 9" | 61:1 | 2250 | 16000 | 30800 | 60 | 130 | 40% | ≤0.1 | Yes | 52 |
| 12" | 78:1 | 4300 | 25000 | 40560 | 77 | 190 | 40% | ≤0.1 | Yes | 65 |
| 14" | 85:1 | 5600 | 48000 | 44200 | 110 | 230 | 40% | ≤0.1 | Yes | 88 |
| 17" | 102:1 | 6750 | 67000 | 53040 | 142 | 390 | 40% | ≤0.1 | Yes | 135 |
| 21" | 125:1 | 16000 | 89000 | 65000 | 337 | 640 | 40% | ≤0.1 | Yes | 192 |
| 25" | 150:1 | 21450 | 112000 | 89000 | 476 | 950 | 40% | ≤0.1 | Yes | 251 |
Features
Realize unlimited circumferential rotation and speed reduction
Withstand larger axial force, radial force and overturning force
High accuracy, compact structure and large carrying capacity.
Applications
Slewing drive application are usually found in such as:
Solar Tracking Systems: Slewing drives are extensively used in
solar tracking systems to ensure that solar panels or mirrors
accurately follow the sun's movement throughout the day. These
systems enhance the energy efficiency of solar power generation by
optimizing the capture of sunlight.
Construction and Heavy Equipment: Slewing drives are employed in
construction machinery, such as cranes, excavators, and drilling
rigs. They enable the rotation and movement of the equipment arms,
providing precise control and stability while handling heavy loads.
Wind Turbines: Slewing drives are crucial components in wind
turbines, where they enable the yaw and pitch movements. The yaw
drive facilitates the horizontal rotation of the entire turbine to
face the wind, while the pitch drive adjusts the angle of the
turbine blades for optimal wind capture.
