SE Series Slew Drives – Reliable Precision for Solar Tracking and Beyond
What Is an SE Series Slew Drive?
An SE Series Slew Drive is a compact and sealed rotational actuator that integrates a slewing bearing with a worm gear mechanism, designed to deliver torque, rotational stability, and self-locking capability. SE series drives are ideal for applications where slow, controlled rotation is required, such as in solar panel tracking, lifting systems, or satellite positioning.
The hallmark of the SE series is its enclosed, weatherproof construction and bi-directional motion capability. It is one of the most commonly used types of slew drives in solar energy systems worldwide.
Core Technical Features
Self-Locking Worm Gear Mechanism
SE slew drives use a worm-and-wheel setup where the worm gear provides inherent self-locking properties, which helps panels or equipment hold position against external forces like wind.
Enclosed Housing (IP66 and Above)
These units are designed to operate in harsh outdoor conditions, with excellent protection from dust, rain, and sand. Higher protection levels are available for offshore or desert deployments.
Bi-Directional Mounting
The SE series supports horizontal and vertical mounting, offering installation flexibility on poles, flat platforms, or mobile systems.
Compatibility with Motor Systems
SE slew drives can be powered by hydraulic or electric motors and offer precise control over speed and torque through motor configuration.
Typical Applications of SE Slew Drives
| Industry | Application Area |
| Solar Energy | Single & dual-axis solar trackers |
| Transportation | Truck-mounted cranes, trailer ramps |
| Robotics | Arm rotation, lifting mechanisms |
| Wind Energy | Yaw systems, blade pitch control |
| Industrial Automation | Rotating inspection tables, platforms |
The SE series stands out in solar PV and CSP systems because of its low maintenance, stability, and long-term durability in outdoor climates.
LDB’s SE Series Product Portfolio
As a seasoned manufacturer and supplier, LDB offers a complete line of SE Series Slew Drives with model numbers ranging from SE3 to SE25.
Technical Specs Across LDB Models:
Output torque: 1.2 kNm to 80 kNm
Gear ratios: 30:1 to 150:1 (customizable)
Nominal output speed: 0.2–2 rpm
Motor interface: DC motor, AC motor, or hydraulic
Operating temperature: –30°C to +70°C
Optional anti-corrosion coatings for marine or desert use
Price Guide and Cost Factors
The price of an SE Series slew drive depends on the torque rating, motor integration, and environmental protections. LDB offers flexible pricing depending on quantity and configuration.
| Model Range | Typical Price (USD) |
| SE3 – SE5 | $300 – $700 |
| SE7 – SE14 | $800 – $1,500 |
| SE17 – SE25 | $1,800 – $3,200+ |
Bulk project pricing and OEM discounts are available. LDB provides detailed price breakdowns based on unit specs and application types.
How to Select the Right SE Slew Drive
To make the right choice, consider:
Torque requirements (static & dynamic)
Installation environment (temperature, humidity, sand)
Mounting space and orientation
Control precision (speed, backlash, repeatability)
Pro Tip: For solar trackers, select a model with 2x the maximum wind load torque to prevent slippage or misalignment.
Supplier & Manufacturer Reliability
Choosing a reliable manufacturer and supplier is as important as the product itself. LDB is recognized globally for:
20+ years of slewing system expertise
International certifications (ISO 9001, CE)
High-precision CNC manufacturing lines
Dedicated engineering support and CAD drawings
Local agent support in 30+ countries
Whether it’s a small-scale pilot system or a 10 MW utility project, LDB ensures long-term supply, documentation, and after-sales service.
Why Choose LDB for SE Slew Drives
Proven Track Record: Over 5000 SE units installed in solar farms across the U.S., Europe, and Asia.
Customization Support: Need a special gear ratio, flange, or anti-rust coating? LDB builds to spec.
OEM Partnerships: Trusted by solar tracker manufacturers, crane integrators, and automation system developers.
Real-Time Technical Service: Remote diagnostics, installation guidance, and cloud monitoring support available.
Conclusion
SE Series Slew Drives are essential for precision rotation in harsh environments. Their enclosed design, high gear ratios, and durability make them the ideal choice for solar, lifting, and automation systems. LDB’s engineering strength, customization capability, and global service network make it the ideal partner when performance matters.
If you’re looking for a slew drive supplier that offers competitive prices, custom engineering, and global fulfillment—LDB is the name to trust.
SE Series Slew Drives – Reliable Precision for Solar Tracking and Beyond
What Is an SE Series Slew Drive?
An SE Series Slew Drive is a compact and sealed rotational actuator that integrates a slewing bearing with a worm gear mechanism, designed to deliver torque, rotational stability, and self-locking capability. SE series drives are ideal for applications where slow, controlled rotation is required, such as in solar panel tracking, lifting systems, or satellite positioning.
The hallmark of the SE series is its enclosed, weatherproof construction and bi-directional motion capability. It is one of the most commonly used types of slew drives in solar energy systems worldwide.
Core Technical Features
Self-Locking Worm Gear Mechanism
SE slew drives use a worm-and-wheel setup where the worm gear provides inherent self-locking properties, which helps panels or equipment hold position against external forces like wind.
Enclosed Housing (IP66 and Above)
These units are designed to operate in harsh outdoor conditions, with excellent protection from dust, rain, and sand. Higher protection levels are available for offshore or desert deployments.
Bi-Directional Mounting
The SE series supports horizontal and vertical mounting, offering installation flexibility on poles, flat platforms, or mobile systems.
Compatibility with Motor Systems
SE slew drives can be powered by hydraulic or electric motors and offer precise control over speed and torque through motor configuration.
Typical Applications of SE Slew Drives
| Industry | Application Area |
| Solar Energy | Single & dual-axis solar trackers |
| Transportation | Truck-mounted cranes, trailer ramps |
| Robotics | Arm rotation, lifting mechanisms |
| Wind Energy | Yaw systems, blade pitch control |
| Industrial Automation | Rotating inspection tables, platforms |
The SE series stands out in solar PV and CSP systems because of its low maintenance, stability, and long-term durability in outdoor climates.
LDB’s SE Series Product Portfolio
As a seasoned manufacturer and supplier, LDB offers a complete line of SE Series Slew Drives with model numbers ranging from SE3 to SE25.
Technical Specs Across LDB Models:
Output torque: 1.2 kNm to 80 kNm
Gear ratios: 30:1 to 150:1 (customizable)
Nominal output speed: 0.2–2 rpm
Motor interface: DC motor, AC motor, or hydraulic
Operating temperature: –30°C to +70°C
Optional anti-corrosion coatings for marine or desert use
Price Guide and Cost Factors
The price of an SE Series slew drive depends on the torque rating, motor integration, and environmental protections. LDB offers flexible pricing depending on quantity and configuration.
| Model Range | Typical Price (USD) |
| SE3 – SE5 | $300 – $700 |
| SE7 – SE14 | $800 – $1,500 |
| SE17 – SE25 | $1,800 – $3,200+ |
Bulk project pricing and OEM discounts are available. LDB provides detailed price breakdowns based on unit specs and application types.
How to Select the Right SE Slew Drive
To make the right choice, consider:
Torque requirements (static & dynamic)
Installation environment (temperature, humidity, sand)
Mounting space and orientation
Control precision (speed, backlash, repeatability)
Pro Tip: For solar trackers, select a model with 2x the maximum wind load torque to prevent slippage or misalignment.
Supplier & Manufacturer Reliability
Choosing a reliable manufacturer and supplier is as important as the product itself. LDB is recognized globally for:
20+ years of slewing system expertise
International certifications (ISO 9001, CE)
High-precision CNC manufacturing lines
Dedicated engineering support and CAD drawings
Local agent support in 30+ countries
Whether it’s a small-scale pilot system or a 10 MW utility project, LDB ensures long-term supply, documentation, and after-sales service.
Why Choose LDB for SE Slew Drives
Proven Track Record: Over 5000 SE units installed in solar farms across the U.S., Europe, and Asia.
Customization Support: Need a special gear ratio, flange, or anti-rust coating? LDB builds to spec.
OEM Partnerships: Trusted by solar tracker manufacturers, crane integrators, and automation system developers.
Real-Time Technical Service: Remote diagnostics, installation guidance, and cloud monitoring support available.
Conclusion
SE Series Slew Drives are essential for precision rotation in harsh environments. Their enclosed design, high gear ratios, and durability make them the ideal choice for solar, lifting, and automation systems. LDB’s engineering strength, customization capability, and global service network make it the ideal partner when performance matters.
If you’re looking for a slew drive supplier that offers competitive prices, custom engineering, and global fulfillment—LDB is the name to trust.
