Planetary drives
1. Large gear ratio, high torque, strong traction.
2. Modular structure, easy maintenance and reduced downtime costs.
3. High quality material, high bearing capacity.
4. Universal interface, high matching efficiency.
5. Controlled quality, full-cycle traceability and stable operation.
Product overview
Planetary drives are ideal drive and braking units, specifically designed for aerial work platforms, scissor lift trucks, spider machines, and various wheeled mobile equipment. Their key features include:
The multi-stage planetary gear reducer reduces high engine or motor speed and greatly increases output torque to meet the traction requirements of the vehicle in conditions such as hill climbing, obstacle crossing and heavy load handling;
When the equipment is parked, the internal brake securely locks the output shaft, preventing the platform from slipping or shifting on an inclined surface;
In an emergency, the braking system can quickly respond and slow the vehicle to ensure the safety of the entire vehicle on slopes, slippery roads, and under heavy loads. This compact wheel reducer integrates steering, deceleration, and braking. It features a compact design and efficient transmission. It is a key component for improving the safety and control of wheeled vehicles.
Product Features
Three-stage planetary deceleration, large gear ratio and high torque:
The walking gearbox features a three-stage planetary design with a total gear ratio of up to 151 and a maximum output torque of 18,000 Nm. The planetary gears at all levels have an optimized tooth profile to maintain optimal contact with the tooth surface. Even under constant high torque and high output loads, the transmission remains stable, noise is low, and wear is minimal. This feature makes the heavy-duty wheel gearbox particularly suitable for aerial work platforms operating on steep inclines and heavy vehicles.
Structural optimization and maintenance are significantly simplified:
Traditional travel gearboxes require maintenance approximately every six months, and due to their complex internal structure and the difficulty of disassembling and assembling, maintenance takes a long time. Our high-power-to-weight ratio wheel gearbox features an optimized internal layout. Key interfaces between the ring gear and housing, planet carrier, and output shaft are modular, while the interfaces of the rear end cover, bearing seat, and other components are standardized. There's no need to disassemble the entire machine during maintenance. You only need to remove the rear end cover to replace the brake pad or planetary gear assembly. Maintenance time is reduced by more than 50%, effectively reducing customer downtime and maintenance costs.
High quality bearings + reinforced gears, long service life:
The main bearing uses a high-capacity tapered roller bearing, capable of simultaneously supporting both radial and axial loads, and adapting to the eccentric load conditions of a high-rise platform in an inclined position. The planetary, sun, and ring gears are made of high-quality alloy steel, case-hardened, and tempered, and the core has excellent strength. Modification and optimization of the gear wheel results in smooth contact patches and significantly increased service life.
Overview of the main benefits
Overall gear ratio |
151 (three-stage deceleration) |
Maximum output torque |
18,000 N m |
Braking method |
Spring applied, hydraulic release (normally closed, wet multi-disc). |
Maintenance cycle |
Under normal use conditions, the first maintenance cycle can be extended to more than 2000 hours. |
Equipment used |
aerial work platforms, scissor trucks, spider trucks, AGV wheeled electric vehicles, small wheeled excavators, etc. |
Application scenarios and selection support
Compact wheel reducer is mainly used in:
Scissor/Articulated Arm Lift Work Platform
Spider lift (narrow body, all-wheel drive, independent)
Electric wheeled AGV and unmanned guided vehicle
Wheel drives for small wheeled excavators and skid steer loaders
When selecting a drive, please specify the engine/motor coupling size, rated torque, maximum vehicle load, and maximum gradeability. Our technical team can assist in calculating the required gear ratio and braking torque, as well as recommend the most suitable hub reduction gearbox model with a high power density. For non-standard interfaces, the adapter flange and input shaft can be quickly adjusted.
Production and quality assurance
Planetary drives are assembled on a dedicated assembly line. Key processes include online bearing preload force measurement, real-time bolt torque monitoring, and leak testing. All products undergo bench testing before leaving the factory. Testing includes transmission efficiency, temperature rise, static and dynamic noise and braking characteristics. Test data is automatically uploaded to the quality database to create an "electronic file" for each product, enabling full lifecycle tracking.
Professional technical services
The company has a technical support team that can provide customers with calculations for selection, interface coordination, and installation recommendations for heavy-duty planetary drives. For the first batch of new models, we can provide prototype bench testing and support for real-world vehicle testing. Installation instructions, seals, and a list of wear parts are included in the shipping box to facilitate on-site service for customers. Whether it's batch selection for OEMs or repair and replacement for end users, we can provide a quick response and professional service.
