H Series Planetary Gear Unit – 18-5000 Ratio, High Load
The H Series Planetary Gear Unit, featuring a star wheel gearset, delivers high-load power transmission with ratios from 18:1 to 5000:1. Constructed with a robust cast iron housing and precision planetary gears, it ensures high efficiency, low noise, and compact design. Ideal for continuous heavy-duty applications, DONGQI’s H Series offers modular, customizable solutions for seamless integration.
Applications of H Series Planetary Gear Unit
The H Series excels in heavy-duty industrial applications, including:
- Heavy Machinery – Powers cranes, excavators, and presses with high torque.
- Mining Equipment – Reliable drive for conveyors and crushers.
- Industrial Mixers – Consistent performance for high-load mixing.
- Steel and Cement Plants – Durable operation for mills and kilns.
This star wheel gearbox is perfect for high-load, continuous-duty environments.
Advantages of H Series Planetary Gear Unit
Key benefits include:
- High Load Capacity – Supports heavy-duty tasks with up to 5000:1 ratio.
- High Efficiency – ≥90% efficiency for optimal power transmission.
- Low Noise – Precision star wheel gearsets ensure smooth, quiet operation.
- Compact Design – Space-saving structure for tight installations.
- Wide Ratio Range – 18:1 to 5000:1 for precise control.
- Modular Design – Easy maintenance and flexible configurations.
- Durable Construction – Cast iron housing ensures long service life.
Technical Parameters of H Series Planetary Gear Unit
| Type | Sizes | Nominal Ratio | Efficiency (%) |
|---|---|---|---|
| HJ | 18B, 20B, … 71B, 80B; 19B, 21B, … 67B, 75B | 18~80 | ≥95% |
| HN | 18B, 20B, … 71B, 80B; 19B, 21B, … 67B, 75B | 75~600 | ≥94% |
| HH | 18B, 20B, … 71B, 80B; 19B, 21B, … 67B, 75B | 450~5,000 | ≥90% |
Frame Sizes: 18B, 20B, 22B, 25B, 28B, 31B, 35B, 40B, 45B, 50B, 56B, 63B, 71B, 80B; 19B, 21B, 23B, 26B, 30B, 33B, 37B, 42B, 47B, 53B, 60B, 67B, 75B
Main Components
Housing
- Material: Cast iron for superior strength and durability.
- Design: Compact and robust for heavy-duty applications.
Gearset
- Type: Planetary gear set with small teeth difference involute design (star wheel gearset).
- Feature: Precision-engineered for high efficiency and smooth operation.
Input Configurations
- Integrated with 50Hz/60Hz 3-phase AC motors (4P, 6P, 8P), DC motors, explosion-proof motors, or hydraulic motors.
- Keyed solid shaft input for versatile integration.
Output Configurations
- Keyed cylindrical solid shaft output.
- Keyed or splined hollow shaft output for flexible connections.
Models and Variants
- HJ: 1-stage star wheel gearset for compact, high-efficiency applications.
- HN: 1-stage star wheel gearset integrated with 1-stage planetary gear set for enhanced torque.
- HH: 2-stage star wheel gearset for high-ratio, heavy-load tasks.
Safety Features
The H Series planetary gear unit ensures safe operation through:
- Robust Housing: Cast iron withstands high stress and wear.
- Precision Gears: Star wheel gearsets minimize vibration for stable performance.
- Reliable Inputs: Supports explosion-proof and hydraulic motors for safe integration.
- Stable Outputs: Keyed or splined shafts ensure secure power transmission.
Customization Options
- Ratio Range: 18:1 to 5000:1 for precise torque control.
- Frame Sizes: 18B to 80B; 19B to 75B for diverse applications.
- Mounting Types: Horizontal, vertical, or circular disc base mounting.
- Input Options: AC, DC, explosion-proof, or hydraulic motors; keyed solid shaft.
- Output Options: Keyed solid shaft or keyed/splined hollow shaft.
Installation and Lubrication
- Mounting Options: Horizontal, vertical, or circular disc base mounting for flexibility.
- Lubrication: Oil immersion and splash lubrication or forced lubrication for heavy-duty use.
- Cooling: Natural cooling or auxiliary cooling devices for efficient heat dissipation.
Maintenance Best Practices
- Lubrication Checks: Inspect oil levels every 6 months; ensure forced lubrication for continuous duty.
- Gear Inspection: Annual checks for wear on star wheel gearsets.
- Cooling Maintenance: Verify functionality of auxiliary cooling devices.
- Clean Environment: Prevent debris from affecting gears or shafts.
Economic Benefits
- Cost-Effective Design: Modular structure reduces installation costs.
- Energy Efficiency: High-efficiency gears (≥90%) lower power consumption.
- Long Service Life: Durable cast iron housing minimizes replacement needs.
- Low Maintenance: Modular design and advanced lubrication reduce upkeep expenses.
Why Choose the H Series Planetary Gear Unit?
The H Series planetary gear unit from DONGQI offers high-load, high-efficiency power transmission for heavy-duty applications. With an 18-5000 ratio, compact design, and low-noise operation, it’s ideal for mining, mixers, and mills. Its modular construction and robust performance ensure reliable, cost-effective solutions.
For more information, technical support, or a professional quote, contact us via WhatsApp/Skype: +8615993097180, email: [email protected], or consultation hotline: +8615993097180.





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