The horizontal slew drive is a highly integrated unit designed for horizontal installations, but can also be used for vertical installations. It integrates a slew bearing, worm gear, motor, and sealing system into a compact and robust structure. It can withstand axial loads, radial loads, and overturning moments from photovoltaic modules and supports within a compact structure, ensuring long-term stable operation of the tracking system outdoors.

In single-axis solar tracking systems, the horizontal slew drive is typically arranged with a horizontal axis. It drives a rotary shaft to achieve rotational movement of the PV module array around a single axis, used for single-degree-of-freedom tracking of the solar altitude or azimuth angle.

By using a horizontal slew drive (azimuth or pitch angle rotation), solar panels can track the solar altitude or azimuth angle, increasing energy output by 10% to 25% depending on the latitude and installation method. It provides greater flexibility in equipment design while reducing the overall system cost.

Key Features

• Utilizes a double-envelope worm gear to achieve multi-tooth contact; double contact line contact improves load-bearing capacity.

• Suitable for multi-row, long-span photovoltaic arrays

• Simplifies system structure, saves installation space, and reduces installation costs.

• Its worm gear structure provides reliable self-locking functionality under most operating conditions, thereby improving operational safety.

• Multiple sealing protections ensure stable operation in outdoor, dusty, and harsh environments.

Typical Applications

• Elevation angle single-axis tracking system

• Tilted single-axis system

• Partially structured east-west single-axis system

• Parabolic Trough Solar Tracking

• Fresnel solar thermal system

• Satellite systems

• Construction machinery

Optional Configurations

• A variety of gear ratios and output torque ranges are available.

• Can be equipped with electric motors, hydraulic motors, stepper motors, or servo systems to meet different control requirements.

• Optional features include encoders, limit switches, corrosion-resistant coatings, and custom solutions.