A Planetary Gear Box (also called an epicyclic gearbox) consists of a sun gear, planet gears, planet carrier, and ring gear. This design provides very high torque, compact size, and excellent load distribution, making it ideal for heavy-duty industrial applications.
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Technical Specifications
| Parameter |
Specification |
| Gear Type |
Planetary (Epicyclic) Gears |
| Mounting |
Foot Mounted / Flange Mounted / Shaft Mounted |
| Gear Ratio |
3:1 to 10,000:1 (multi-stage) |
| Power Range |
0.25 kW to 500 kW |
| Output Torque |
Up to 500,000 Nm (depending on model) |
| Input Speed |
Up to 4,000 RPM |
| Output Speed |
0.51,500 RPM |
| Efficiency |
95%98% per stage |
| Housing Material |
High-strength Cast Iron or Steel |
| Gear Material |
Case Hardened & Ground Alloy Steel |
| Shaft Material |
High Tensile Alloy Steel |
| Lubrication |
Oil Bath / Forced Lubrication |
| Mounting Position |
Horizontal / Vertical |
| Protection Class |
IP55 (Higher ratings available) |
| Ambient Temperature |
-20C to +40C |
Key Features
- High torque transmission in a compact design
- Excellent load sharing between planet gears
- High transmission efficiency
- Smooth, low-noise operation
- Compact and lightweight construction
- Long service life
- Low maintenance requirements
- Suitable for continuous heavy-duty operation
Advantages
- Very high torque capacity
- Compact size with high power density
- High efficiency (up to 98%)
- Uniform load distribution reduces gear wear
- Reliable performance under shock loads
- Multiple reduction ratios available
- Long operating life
Applications
- Material Handling Equipment
- Cranes & Hoists
- Conveyors
- Steel Plants
- Cement Industries
- Mining Equipment
- Wind Turbines
- Construction Machinery
- Extruders
- Mixers & Agitators
- Packaging Machinery
- Paper Mills
- Sugar Industries
- Marine Applications
- Robotics & Automation
Standard Mounting Types
- Foot Mounted
- Flange Mounted
- Inline Configuration
- Right-Angle Configuration
- Hollow Shaft
- Solid Shaft
Typical Input & Output
- Input: Electric Motor, Servo Motor, Hydraulic Motor, or Diesel Engine
- Output: Solid Shaft, Hollow Shaft, or Flanged Output
- Reduction Stages: Single, Double, Triple, or Multi-stage
Benefits
- High power density with compact dimensions
- Excellent efficiency and reliability
- Low vibration and quiet operation
- High resistance to overload and shock
- Reduced maintenance costs
- Suitable for demanding industrial applications
Planetary gearboxes are widely used where high torque, compact size, and precision performance are essential, making them a preferred choice for heavy industrial and automation systems.