U23D High Precision Linear Actuator for Solar Tower Heliostat
Tracking System
High-Precision Linear Positioning for Solar Thermal Tower
Heliostats
The TOMUU U23D is a high-precision 24V DC linear actuator specifically developed for solar tower heliostat tracking systems.
It provides controlled low-speed linear movement for positioning
heliostat structures in concentrated solar power (CSP)
applications.
With a rated push and pull load of 40,000N, a maximum static load of 55,000N and IP66 protection, U23D is designed for demanding solar thermal positioning
applications.
Key Features
40,000N Rated Push & Pull Load
55,000N Max. Static Load
IP66 Protection Class
24V DC Rated Voltage
U23D Technical Specifications
| Parameter | Specification |
|---|
| Application | Solar Tower / CSP Heliostat Tracking |
| Rated Voltage | 24V DC |
| Rated Load | 40,000N Push & Pull |
| Maximum Static Load | 55,000N |
| Speed Range | 0.125–1.5mm/s |
| Code A Rated Speed | 1.0mm/s |
| Protection Class | IP66 |
| Ambient Temperature | -40°C to +70°C |
| Minimum Installation Dimension | 200mm ±2mm + Stroke |
| Stroke | Project-Specific, S ±2mm |
Load Definition:
Rated Push & Pull Load: 40,000N
Maximum Static Load: 55,000N
Designed for Solar Tower Heliostat Tracking
Solar tower heliostat systems require controlled movement to adjust
mirror position throughout the tracking cycle. The actuator works
together with the heliostat structure, mounting geometry and
control system to provide the required linear positioning.
U23D combines high load capability with controlled low-speed movement for solar thermal tower applications. When the heliostat stops
moving, the actuator also remains part of the positioning
structure, so both operating load and static load should be
considered during actuator selection.
Actual actuator requirements depend on the heliostat structure,
mounting position, stroke, installation geometry and project
operating conditions.
U23D Load & Speed Configuration
| Code | Voltage | Push Load | Pull Load | Rated Speed |
|---|
| A | 24V DC | 40,000N | 40,000N | 1.0mm/s |
The U23D product specification covers speed configurations within
the 0.125–1.5mm/s range. Final configuration should be confirmed
according to project requirements.
U23D Installation & Dimensions
The U23D minimum installation dimension is based on 200mm ±2mm plus the selected stroke, with stroke defined as S ±2mm.
Stroke and mounting dimensions should be confirmed according to the
heliostat structure, available installation space and required
adjustment range. For CSP projects, installation geometry should be
evaluated together with load and movement requirements.
U23D in a High-Altitude CSP Heliostat Project
TOMUU U23D linear actuators have been applied in the heliostat
tracking system of the Anduo Tushuo CSP project in Tibet, China, located at approximately 4,650 meters above sea level.
Representative U23D Application — Tibet, China
In this project, U23D actuators are used as part of the heliostat
positioning system, providing controlled linear movement for mirror
tracking in the solar tower CSP field.
The project images and video below show TOMUU U23D actuator
applications in a real solar thermal heliostat tracking project.
Why TOMUU for CSP Heliostat Actuators?
U23D is developed specifically for solar tower heliostat tracking.
TOMUU combines actuator engineering, manufacturing, testing and
solar project experience to support project-specific positioning
requirements.
CSP Application Engineering
Operating Load · Static Load · Stroke · Installation Geometry ·
Movement Speed
Heliostat actuator selection should consider the operating load,
static load conditions, required stroke, installation dimensions,
movement speed and project environment together rather than
evaluating a single load value alone.
Production & Manufacturing
Actuator Assembly · Process Control · Project Production
R&D & Testing
Load · Protection · Durability · Performance
TOMUU evaluates actuator performance around the operating
requirements of solar thermal tracking applications, including load
capability, protection, movement performance and durability.
Select the Right U23D Configuration for Your Heliostat System
To evaluate the appropriate U23D configuration for your solar tower
or heliostat tracking project, please provide the required operating load, static load conditions, stroke, installation
dimensions, movement speed, mounting geometry and project quantity .
You can also review our Linear Actuator Selection Guide before sending your project information.
Related Resources
Powering the World's Highest CSP Project in Tibet
See how TOMUU U23D actuator solutions are applied in heliostat
tracking for a tower CSP project located at approximately 4,650
meters above sea level.
View U23D CSP Project Case →
World's Highest-Altitude Tower CSP Project in Xizang
Learn more about TOMUU actuator applications in tower CSP heliostat
tracking under high-altitude project conditions.
Read Project News →
