U18B Linear Actuator Without Motor For Multi Point Linkage Solar Tracker
Motor-Free Actuator for Multi-Point Linkage Solar Tracking Systems
The TOMUU U18B is a motor-free linear actuator designed for multi-point linkage solar tracker systems.
It is intended to work as a mechanical adjustment unit within a linkage structure, allowing multiple tracker points to be connected through a coordinated mechanical system rather than requiring an individual motor at every adjustment point.
Compared with the larger U18A structure, the U18B has a more compact design and is intended for smaller solar tracker applications where installation space and mechanical layout are more limited.
Key Features
12,000N Push & Pull Load
20,000N Max. Load
4mm/r Adjustment Speed
IP65 Protection
Technical Specifications
| Parameter | Specification |
| Application | Multi-Point Linkage Solar Tracker |
| Design | Motor-Free |
| Rated Load | 12,000N Push & Pull |
| Max. Load | 20,000N |
| Max. Static Load | 50,000N at 500mm stroke |
| Adjustment Speed | 4mm/r ±5% |
| Torque | ≤24N·m |
| Protection | IP65 |
| Salt Spray Test | 600H |
| Ambient Temperature | -30°C to +60°C |
| Minimum Installation Dimension | Stroke + 250mm ±2mm |
| Front End | Ø25mm Hole |
Static load capability should be evaluated together with stroke and project configuration.
Adjustment Parameters
| Code | Torque | Push Load | Pull Load | Rated Speed |
| A | ≤24N·m | 12,000N | 12,000N | 4mm/r |
Designed for Multi-Point Linkage Solar Trackers
Multi-point linkage tracker structures use mechanical connections to coordinate movement across multiple adjustment points. In this type of system, a motor-free actuator can be integrated as part of the linkage mechanism rather than using a separate motor at every position.
The U18B is designed specifically for this type of mechanical solar tracker structure, providing linear movement and load support within the linkage system.
Application Focus:
Motor-free linear adjustment for multi-point linkage solar tracker structures where multiple adjustment positions are mechanically connected.
Compact U18 Series Design
The U18B has a smaller structure than the U18A and is intended for smaller solar tracker applications where a more compact actuator arrangement is required.
Final suitability should be evaluated according to the tracker structure, required load, stroke, linkage arrangement and installation dimensions.
U18B Specifications & Dimensions
The U18B minimum installation dimension is based on Stroke + 250mm ±2mm. The front mounting end uses a Ø25mm hole.
Please confirm the required stroke and mechanical interface together with the tracker linkage structure before final selection.
Solar Tracker Applications
U18 series actuators are used in solar tracker structures requiring mechanical adjustment and outdoor operation. Product configuration should be evaluated according to the actual tracker structure and project requirements.
Why TOMUU for Solar Projects?
57GW+
Cumulative Solar Project Applications Worldwide
Since 2017
Solar Actuator Experience
1,000 pcs/day
Solar Actuator Line Capacity
U18 Series Production & Packaging
U18 series actuators prepared for project delivery with protective packaging for transportation.
R&D & Testing
Load · IP · Durability · Performance
Looking for a Manual Solar Tracker Adjustment Actuator?
If your solar tracker application requires manual seasonal, bracket or mount adjustment rather than a motor-free multi-point linkage solution, the TOMUU U18C series may be a better option.
View U18C Adjustment Actuator →
Evaluate U18B for Your Solar Tracker Project
To evaluate whether the U18B is suitable for your multi-point linkage solar tracker structure, please provide the required load, stroke, installation dimensions, linkage arrangement and project quantity .
You can also review our Linear Actuator Selection Guide before sending your project information.
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