The weight of the object alone is not always enough to determine actuator load. Mounting position, movement angle, lever distance, friction, and other external forces can all affect the actual load.
For applications with a linkage or rotating structure, the installation geometry should also be considered.
Yes. Linear actuators can be installed horizontally, vertically, or at an angle, depending on the application. The actual load direction and mounting structure should still be checked before selection.
Yes. An actuator can be stopped before reaching the end of its stroke if the control system supports this function. If accurate intermediate positioning is required, position feedback may also be needed.
Two actuators of the same model may still have small speed differences because of load, installation, and normal production tolerances. If they must move together accurately, a synchronization control system is normally required.
Not always. For simple extend-and-retract movement, position feedback may not be necessary. If the system needs position monitoring, synchronization, or more precise control, feedback such as a Hall sensor or potentiometer may be required.
A Hall sensor generates electrical pulses as the actuator moves. The controller can use these pulses to monitor movement, calculate position, or help synchronize multiple actuators.
Many linear actuators have built-in limit switches. When the actuator reaches its preset end position, the limit switch cuts power to the motor and stops the movement.
Most standard linear actuators are not designed for continuous operation. If your equipment requires frequent or long operating cycles, the actuator's duty cycle should be checked before selection.
Duty cycle tells you how long an actuator can run before it needs time to rest. For example, a 10% duty cycle means the actuator should only operate for part of each working cycle. The exact running and rest time should follow the product specification.
Both values may be used. No-load speed is measured without an external load, while full-load speed is measured at the rated load. Actual operating speed depends on the load applied.
Usually, yes. For the same actuator platform, higher load often requires a different gear ratio, which results in a lower operating speed. Load and speed should therefore be considered together.
Push load is the force required when the actuator extends. Pull load is the force required when it retracts. Depending on the actuator design, the rated push and pull loads may be different.
Installation length is the distance between the two mounting points of the actuator. It is different from stroke length, so both dimensions should be checked when selecting an actuator.
Stroke is the distance the actuator rod travels from its fully retracted position to its fully extended position. For example, a 300 mm stroke means the actuator can move 300 mm.
An electric motor drives gears and a screw inside the actuator. As the screw turns, the actuator rod extends or retracts to create linear movement.
A linear actuator is a device that moves something in a straight line. It can push, pull, lift, lower, or adjust a part of a machine or equipment.
TOMUU actuators are widely used in solar tracking systems (PV and CSP), industrial automation, medical equipment (hospital beds, nursing beds), smart furniture, fitness equipment, agricultural machinery, and ventilation systems. We serve customers in over 50 countries worldwide.
All TOMUU linear actuators come with a standard warranty. The exact warranty period and terms depend on the product series and application. Our after-sales team provides technical support and replacement services. Contact us for detailed warranty information.
Yes. We provide OEM branding services including custom logo printing on actuator labels and housing, custom packaging design, and customized product documentation. Please provide your branding requirements when placing an order.
Sample orders typically ship within 7–15 days. Bulk production orders usually take 25–45 days depending on quantity and customization requirements. We operate manufacturing bases in Dongguan, China and Vietnam, with a combined production capacity exceeding 3,000 units per day (2,000+ units/day in China and 1,000+ units/day in Vietnam) to ensure reliable supply and on-time delivery.
TOMUU is ISO 9001, ISO 14001, and ISO 45001 certified. Our products also hold CE certification. We comply with international standards for quality management, environmental management, and occupational health and safety.
Yes. As a manufacturer with in-house R&D, we offer full OEM and ODM customization including stroke length, load capacity, speed, voltage (12V/24V/36V), IP rating, mounting dimensions, Hall sensor resolution, and custom branding. Please send your technical requirements for a custom solution.
As a factory manufacturer, our standard MOQ is 500 pcs. For new customers and trial projects, we offer single-unit samples for testing and evaluation. Please contact our sales team for sample pricing.
There is no single inspection schedule that applies to every solar tracking project. Inspection frequency depends on factors such as the project location, environmental conditions, equipment design and the owner's maintenance strategy.
For most projects, routine inspections are used to check the condition of moving components, electrical connections and mounting hardware before small issues develop into unexpected failures. Sites exposed to sand, dust, salt spray or extreme weather may require more frequent inspections than installations operating in milder environments.
Rather than following a fixed timetable, many operators combine manufacturer recommendations with actual site conditions to develop a maintenance plan that fits their project.
This approach reflects an important point discussed in our article **"When Maintenance Becomes the Real Challenge in Solar Tracking Systems"**—effective maintenance is not only about how often equipment is inspected, but also about selecting components and system designs that simplify long-term operation.
While no mechanical system is completely maintenance-free, maintenance requirements can often be reduced through thoughtful system design and appropriate component selection.
Reliable actuators, durable dampers, suitable protection levels and well-designed mounting structures all contribute to long-term system performance. Just as importantly, designing equipment that is easy to inspect and service can help reduce maintenance time throughout the project's lifecycle.
Regular inspections are still recommended, but selecting proven components from the beginning can help minimise unexpected downtime and simplify long-term operation.
Our article **"When Maintenance Becomes the Real Challenge in Solar Tracking Systems"** explores why maintenance should be considered during system design rather than only after a project is commissioned.
Routine maintenance should focus on the entire solar tracking system rather than a single component. While maintenance schedules vary by project, several key components are commonly inspected to help ensure reliable long-term operation.
These typically include linear actuators, dampers, bearings, fasteners, electrical connections and other moving parts. Regular inspections can help identify wear, looseness or environmental damage before they affect system performance or lead to unexpected downtime.
The specific maintenance requirements will depend on the tracker design, operating environment and project maintenance strategy. For this reason, many project owners establish inspection plans based on both equipment recommendations and site conditions.
To learn why maintenance planning is becoming an increasingly important part of solar tracker design, read our article **"When Maintenance Becomes the Real Challenge in Solar Tracking Systems."**
Maintenance plays an important role in the long-term reliability of any solar tracking system. While the initial installation receives significant attention, the ease of inspection, servicing and component replacement often has a greater impact on the system's performance over its operating life.
A well-designed solar tracker should not only deliver accurate movement but also simplify routine maintenance. Components that are easier to inspect and replace can help reduce downtime and support more efficient operation, especially in large-scale solar projects where maintenance costs can accumulate over time.
Rather than treating maintenance as an afterthought, many project developers now consider it during the equipment selection stage as part of the overall lifecycle cost.
For a broader discussion on this topic, read our article **"When Maintenance Becomes the Real Challenge in Solar Tracking Systems."**
Selecting an industrial linear actuator starts with understanding the motion required by the application rather than the industry it belongs to.
Engineers typically evaluate several key factors, including:
- Required load
- Stroke length
- Operating speed
- Duty cycle
- Installation space
- Environmental conditions
- Control requirements
While different industries often use industrial linear actuators for very different equipment, the selection process usually follows the same engineering principles. Focusing on the motion requirements first helps identify a solution that is both reliable and practical for long-term operation.
This engineering approach is also the main idea behind our article Why Many Industrial Linear Actuator Applications Still Rely on the Same Mechanical Logic, which explains why many seemingly different applications begin with the same selection logic.
In many cases, the mechanical platform remains the same, while the actuator is configured to match different operating requirements.
Depending on the application, engineers may adjust the load capacity, stroke length, operating speed, mounting configuration, motor type or protection level. These changes allow the actuator to meet different performance requirements without changing its basic mechanical design.
This approach not only simplifies product development but also builds on proven designs that have already been validated in real applications.
Understanding this engineering approach helps explain why industrial linear actuators are used across such a wide range of industries. For more background, read our article Why Many Industrial Linear Actuator Applications Still Rely on the Same Mechanical Logic.
Industrial linear actuators are used in many industries because the required motion is often similar, even when the equipment is not.
Whether the application is a solar tracker, lifting platform, agricultural machine or industrial automation system, the actuator is typically expected to move a load in a controlled and reliable way. While the operating environment and specifications may vary, the underlying mechanical requirements often remain the same.
This is why many manufacturers develop actuator platforms that can be adapted to different applications instead of creating a completely new design for every industry.
If you're interested in the engineering thinking behind this approach, read our article
Why Many Industrial Linear Actuator Applications Still Rely on the Same Mechanical Logic.
Although applications vary, many industrial machines require the same basic linear motion. This allows a proven actuator platform to be adapted for different industries by adjusting load, stroke, speed, mounting and environmental protection.
This engineering approach is discussed in our article Why Many Industrial Linear Actuator Applications Still Rely on the Same Mechanical Logic.
Solar tracking systems are more commonly considered in PV projects where land efficiency and long-term energy yield become more important.
Compared with fixed tilt structures, tracking systems can improve power generation performance by allowing panels to follow sunlight throughout the day. In some high-irradiance regions, the long-term energy gain may become more noticeable.
In practice, the final system selection still depends on the project itself, including land conditions, investment expectations, maintenance planning, and overall return considerations.
Fixed tilt systems are still widely used in many PV projects because they often offer simpler structures, lower upfront cost, and easier maintenance compared with tracking systems. In practice, the final solution usually depends on factors such as land conditions, project budget, and expected long-term energy return.
Quick Answer
Outdoor actuator reliability depends on more than IP rating.
In long-term outdoor projects, actuator problems are often related to sealing aging, vibration, corrosion, temperature changes, and maintenance conditions.
For utility-scale systems, long-term stability usually depends on how the actuator, structure, and damping system work together.
Key Engineering Considerations
Outdoor actuator systems are commonly affected by:
- sealing aging
- wind vibration
- mounting corrosion
- dust and sand
- temperature changes
- long-term outdoor load
- field maintenance conditions
Why Outdoor Conditions Matter
Outdoor actuators may operate for years in:
- heat
- rain
- humidity
- dust
- strong wind
Over time, these conditions can affect sealing, lubrication, and moving parts.
In high-wind areas, continuous vibration may also increase wear around mounting points and structural connections.
For outdoor tracker systems, vibration control is often just as important as actuator load capacity.
Related Engineering Articles
Why High Static Load Matters for Solar Tracker Actuators
U20G Heavy-Duty Linear Actuator for Solar Tracker
Quick Answer
Solar tracking systems use heavy-duty linear actuators because tracker structures must withstand high static loads, wind-induced vibration, and long-term outdoor exposure.
In utility-scale PV projects, actuator reliability is often more related to structural stability and outdoor operating conditions than to driving force alone.
Key Engineering Considerations
Engineering evaluation for solar tracker actuators typically includes:
- static load capacity
- wind vibration
- long-term outdoor sealing
- structural stability
- maintenance requirements
- load requirements with damping systems
In many large-scale tracker projects, the actuator spends most of its service life holding position rather than continuously moving.
Because of this, static load capacity is often more important than driving force alone.
For high-wind regions or large tracker structures, actuators are also commonly used together with damping systems to help reduce cyclic vibration and structural fatigue caused by wind loading.
Under these conditions, actuator selection should consider not only load, but also:
- additional load introduced by damping systems
- system response during movement
- long-term vibration stability
- matching between actuator and damper configurations
In some utility-scale tracker systems, overall stability depends on the combined behavior of the actuator, structural frame, and damping solution rather than on a single component alone.
Recommended Engineering Solutions
Recommended for:
- utility-scale solar tracker systems
- high static load applications
- high-wind environments
- long-lifecycle PV projects
Recommended solutions:
- heavy-duty linear actuator platforms
- high static load drive systems
- IP66/IP68 outdoor actuator configurations
- hydraulic damping systems
- heavy-duty mounting structures
Related Engineering Articles
AC linear actuators are commonly used in livestock ventilation and agricultural environmental control systems.
In some applications, AC-powered actuators are selected for:
• Compatibility with existing farm power systems
• Ventilation equipment integration
• Air inlet adjustment systems
• Automated agricultural control systems
Selection requirements may vary depending on system voltage, installation environment, and ventilation control structure.
Agricultural and livestock actuator systems are commonly exposed to environments involving humidity, dust, and ammonia-related conditions.
Because of this, corrosion resistance is often considered during actuator selection for poultry and livestock ventilation applications.
Depending on application requirements, agricultural actuator systems may use:
• Protective coatings
• Corrosion-resistant materials
• Sealing structures
• Outdoor protection designs
Environmental conditions and maintenance practices may influence long-term operating performance.
Automated livestock ventilation systems commonly use linear actuators to adjust airflow structures such as air inlets and ventilation panels.
In environmental control systems, actuator-based adjustment may support:
• Airflow regulation
• Ventilation opening adjustment
• Temperature management systems
• Automated environmental control integration
System requirements may vary depending on farm size, ventilation structure, and environmental conditions.
Livestock ventilation actuators are commonly installed in environments exposed to:
• Dust
• Humidity
• Water exposure
• Agricultural environmental conditions
Because of this, IP protection level is commonly considered during actuator selection for poultry and livestock systems.
Depending on the installation environment, IP65 or IP66 protection levels are commonly used in agricultural ventilation applications.
Appropriate sealing structures and environmental protection designs are often considered for long-term agricultural operating conditions.
Actuator selection for poultry ventilation systems usually involves multiple environmental and operational considerations.
Common selection factors may include:
• Operating voltage
• Load requirements
• Stroke length
• IP protection level
• Corrosion resistance
• Manual operation capability
• Compatibility with control systems
In livestock applications, actuator systems are commonly exposed to dust, humidity, and ammonia-related environments, which may influence long-term operating requirements.
In livestock ventilation systems, airflow adjustment may become important during unexpected power interruptions.
For this reason, some actuator systems used in poultry and livestock applications may include manual release or manual operation functions.
Manual operation capability is commonly considered for applications involving:
• Poultry ventilation systems
• Air inlet control systems
• Livestock environmental control
• Agricultural ventilation equipment
Depending on system structure and application requirements, manual adjustment functions may support temporary airflow management during maintenance or power-related situations.
Linear actuators are commonly used in livestock ventilation systems for automatic adjustment of air inlets, dampers, and ventilation structures.
Compared with manual adjustment methods, actuator systems are often selected for applications requiring:
• Remote control capability
• Stable positioning
• Automated environmental adjustment
• Integration with ventilation control systems
In poultry and livestock environments, actuator selection is commonly based on operating conditions such as humidity, dust exposure, and long operating periods.
Selecting a suitable actuator for solar tracking systems usually involves multiple technical considerations, including:
• Load capacity
• Static load performance
• Stroke length
• IP protection level
• Operating temperature
• Self-locking capability
• Service life requirements
Installation environment, wind conditions, and structural design may also influence actuator selection requirements in photovoltaic applications.
In solar tracking systems, actuators are often required to maintain panel position for extended periods after movement stops.
Because of this, self-locking capability is commonly considered during actuator selection for outdoor photovoltaic applications.
Self-locking structures are commonly used to support:
• Structural holding stability
• Position maintenance under external load
• Outdoor positioning applications
• Stable holding capability under wind conditions
Wind load is one of the environmental factors commonly considered in solar tracking system design.
To support outdoor structural holding applications, heavy duty solar actuators are often designed with:
• Higher static load capability
• Reinforced structural rigidity
• Self-locking capability
• Outdoor weather resistance
For utility-scale photovoltaic systems, actuator holding capability under outdoor loading conditions is commonly considered during system selection.
Solar tracking actuators are commonly exposed to outdoor conditions including rain, dust, humidity, and temperature variation.
Depending on the installation environment, IP65, IP66, or IP67 protection levels are commonly used in photovoltaic tracking applications.
Appropriate IP protection is commonly used to support:
• Water resistance
• Dust protection
• Outdoor durability
• Long-term outdoor operation
Dynamic load refers to the pushing or pulling force generated while the actuator is moving.
Static load refers to the amount of external force the actuator can withstand while remaining stationary.
In photovoltaic tracking systems, both dynamic load and static load are commonly evaluated during actuator selection for outdoor structural applications.
In solar tracking systems, actuators typically spend more time holding position than moving.
Because of this, static load capability is commonly considered an important parameter in photovoltaic applications.
Static load performance is often evaluated in relation to:
• Wind pressure
• Panel weight
• Outdoor vibration
• Structural loading conditions
For large-scale solar projects, actuator holding capability is commonly considered during long-term outdoor system design.
Yes. Quiet linear actuators are widely used in indoor industrial automation systems.
Typical applications include:
· Smart cabinets
· Adjustable workstations
· Automated covers
· Indoor positioning systems
· Compact automation equipment
· Smart control devices
As automation systems become more user-oriented, reducing operating noise is becoming an increasingly important part of equipment design.
Even in indoor environments, automation equipment may still face:
· Dust
· Humidity
· Frequent operating cycles
· Long working hours
IP66-rated linear actuators help improve protection against dust and moisture while maintaining stable long-term operation.
This is especially important for compact industrial automation systems that require higher reliability and lower maintenance risk.
Quiet linear motion is increasingly important in:
· Smart equipment
· Indoor automation systems
· Medical devices
· Adjustable furniture
· Commercial equipment
· Compact industrial machinery
As industrial equipment becomes smarter and more user-oriented, quiet operation is becoming part of better equipment design.
When selecting a quiet linear actuator for indoor automation equipment, several factors should be considered:
· Operating noise level
· Load requirement
· Duty cycle
· Protection level
· Installation space
· Positioning stability
· Motion smoothness
For many compact automation systems, balancing quiet operation and stable performance is often more important than simply pursuing higher force output.
A quiet linear actuator is designed to reduce operating noise and vibration during movement. It is commonly used in indoor automation equipment, smart devices, adjustable systems, and compact industrial applications where smooth and stable motion is important.
Quiet electric linear actuators help improve both user comfort and overall equipment experience in modern automation systems.
Worm gear linear actuators typically provide smoother power transmission and reduced vibration during operation.
Compared with some traditional drive systems, worm gear structures can help achieve:
· Lower operating noise
· Better self-locking performance
· More stable positioning
· Smoother motion control
This makes them suitable for indoor automation systems and smart equipment applications where quiet operation is important.
