Planetary Slew Drive Gearbox for Wind Turbine Pitch Systems
The Planetary Slew Drive Gearbox is essential for wind turbine pitch systems, providing precise control over the blade angle. This gearbox ensures smooth and reliable rotation, optimizing energy capture and enhancing turbine efficiency. Its robust design withstands harsh environmental conditions, contributing to the durability and performance of wind turbines, ultimately supporting sustainable energy generation.
Planetary Slew Drive Gearbox for Wind Turbine Pitch Systems
The Planetary Slew Drive Gearbox is designed specifically for wind turbine pitch systems, providing exceptional torque and precision control. Its compact design and robust construction ensure reliable operation and enhanced efficiency in energy generation.
Specification | Details |
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Output torque range | 1000–180000 N.m |
Gear ratios | i = 3.3–3000 |
Support | Slew support (with flange mounted) |
Output shaft | Splined or with integral pinion; output shafts supported by heavy duty capacity bearings |
Applicable motors | Axial piston hydraulic motors, hydraulic orbit motors, IEC electric motors |
Hydraulic motor options | Pressure relief valve, over-center valve, parking brake |
Electric brake | DC and AC type |
Hydraulic brake | Hydraulically released parking brake |
700L Series Slewing Drive | |||||
Type | Max. torque (N.m) | Range of ratios (i) | Max. Input speed (rpm) | Braking torque (N.m) | |
Excavator | Crane | ||||
EP700L | 1000 | 1200 | 3.38-32 | 3500 | 50-400 |
EP701L | 1800 | 2400 | 3.38-32 | 3500 | 50-400 |
EP703AL | 2500 | 3500 | 12-175 | 3500 | 50-400 |
EP705AL | 5000 | 6500 | 12-175 | 3500 | 50-400 |
EP705L | 5000 | 6500 | 12-175 | 3500 | 50-400 |
EP706AL | 7700 | 12000 | 13-143 | 3500 | 50-1000 |
EP706L | 7700 | 12000 | 13-143 | 3500 | 50-1000 |
EP707AL | 10500 | 16500 | 13-256 | 3500 | 50-1000 |
EP707L | 10500 | 16500 | 13-256 | 3500 | 50-1000 |
EP709AL | 16000 | 26000 | 13-256 | 3500 | 50-1000 |
EP709L | 16000 | 26000 | 13-256 | 3500 | 50-1000 |
EP711AL | 32000 | 45000 | 14-223 | 2500 | 400-3200 |
EP711L | 32000 | 45000 | 14-223 | 2500 | 400-3200 |
EP713L | 40000 | 55000 | 50-276 | 2500 | 400-1000 |
EP715L3 | 70000 | 80000 | 54-242 | 2500 | 850-3200 |
700S Series Slewing Drive | |||||
Type | Max. torque (N.m ) | Range of ratios (i) | Max. Input speed (rpm) | Braking torque (N.m) | |
Excavator | Crane | ||||
EP706S | 7700 | 10000 | 20-106 | 3500 | 400-1000 |
EP707S | 10500 | 16500 | 25-134 | 3500 | 400-1000 |
EP709S | 16000 | 26000 | 20-144 | 3500 | 400-1000 |
EP710S | 18000 | 29000 | 36-52 | 3500 | 400-1000 |
EP710BS | 23000 | 35000 | 110-176 | 3500 | 400-1000 |
EP710DS | 27800 | 48500 | 32-181 | 3500 | 400-1000 |
EP714S | 45000 | 68300 | 63-187 | 3000 | 600-2000 |
EP715S | 65000 | 93300 | 63-212 | 3000 | 600-2000 |
EP716S | 120000 | - | 63-1500 | 2500 | 600-2000 |
EP717S | 180000 | - | 63-1500 | 2000 | 600-2000 |
Planetary Gearbox Slewing Drive VS Worm Gearbox
- Efficiency: Planetary gearboxes offer higher efficiency with less energy loss compared to worm gearboxes.
- Size: Planetary designs are more compact, providing a higher torque-to-weight ratio.
- Load Distribution: Planetary systems distribute loads evenly, reducing wear and increasing lifespan.
- Backlash: Planetary gearboxes generally exhibit lower backlash than worm gearboxes, enhancing precision.
Selection of Planetary Slew Drive Gearbox for Wind Turbine Pitch Systems
When selecting the appropriate model and gear reduction ratio for a planetary slew drive gearbox, several critical factors must be considered. First, evaluate the load torque requirements to ensure optimal performance under varying conditions. Next, consider the input speed, as this influences efficiency and operational stability. Additionally, the working environment, including temperature and humidity, plays a vital role in durability and reliability. Finally, assess the available installation space to ensure compatibility. We offer a range of models and support customized gear reduction ratios to meet specific application needs, ensuring optimal performance for your wind turbine systems.

Does Planetary Gearbox Slewing Drive Need an Additional Brake?
The Planetary Slew Drive Gearbox used in wind turbine pitch systems typically does not require an additional brake under normal operating conditions. The gearbox is designed to handle the torque and forces encountered during pitch adjustments, providing adequate holding capability. However, in scenarios involving emergency stops or extreme weather conditions, an additional brake may be advisable to ensure safety and reliability. This ensures that the system can effectively manage unexpected loads or failures.
Slewing Drive Planetary Gearbox Manufacturer
GBC is the Australian sales agent for Ever-power Group, specializing in high-quality planetary slew drive gearboxes. Our Planetary Slew Drive Gearbox for Wind Turbine Pitch Systems is designed to provide exceptional performance and reliability, ensuring optimal operation in various conditions. We pride ourselves on our superior customer service and comprehensive after-sales support, which guarantees that our clients receive the assistance they need throughout their experience with us.
We encourage all customers to consider our customization options to meet their specific requirements. For inquiries and quotes, please reach out to us today!
Additional information
Edited by | Sylvia |
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The Planetary Slew Drive Gearbox is essential for wind turbine pitch systems, providing precise control over the blade angle. This gearbox ensures smooth and reliable rotation, optimizing energy capture and enhancing turbine efficiency. Its robust design withstands harsh environmental conditions, contributing to the durability and performance of wind turbines, ultimately supporting sustainable energy generation.