Solar Tracker Linear Actuator: Why Tilt Angle Is Not Enough
When selecting a linear actuator for a solar tracker, tilt angle is an important parameter.
But here is one detail that is easy to overlook:
A solar tracker tilts 30°. Is the linear actuator also working at 30°?
Not necessarily.
Tracker Angle and Actuator Angle Are Different
The tracker tilt angle describes the position of the solar panel or tracker structure.
The linear actuator has its own working angle, which depends on the actual mounting position.
If the actuator’s two mounting points are at different heights or positions, the actuator angle changes as the tracker moves.
So even when the tracker tilts forward and backward by the same number of degrees, the actuator’s installation geometry may not be symmetrical.
Simply put:
Tracker angle ≠ Actuator angle.
What Should Be Considered?
When selecting a solar tracker linear actuator, tilt angle alone does not show the complete installation condition.
It is also useful to consider:
- Mounting point positions
- Installation dimensions
- Required stroke
- Full movement range
- Load requirements
If mounting dimensions or structural drawings are available, our engineering team can also review them together with the customer as a reference for actuator selection.
For more basic selection factors, you can also read our guide: What Information Do You Need to Select a Linear Actuator?
Not Only for Solar Trackers
Solar trackers are a typical example, but the same principle applies to many other applications.
Industrial fixtures, tilting platforms, lifting mechanisms and other equipment also use linear actuators to convert linear motion into angular movement.
So besides asking:
“What is the equipment’s tilt angle?”
It is also worth asking:
“What angle will the linear actuator actually work at throughout the movement?”
Understanding this difference gives a clearer picture of the actuator’s actual installation and movement.
Related Reading
What Information Do You Need to Select a Linear Actuator?
A practical guide to the key information needed for linear actuator selection, including load, stroke, speed, voltage, duty cycle and installation requirements.
Related Product
U20G Solar Tracker Linear Actuator
A heavy-duty linear actuator developed for solar tracking applications, with multiple load and stroke configurations available for different project requirements.
