Product Selection · Application Guide
Vibratory drum drive meets rear-axle traction — how the TMS03 radial piston motor (shaft or wheel type) and the compact TMK series motor pair up for soil compaction and asphalt paving duty.
In soil compaction, asphalt paving, and large-scale road construction, road rollers (compactors) play a pivotal role. To achieve a flawless, high-density surface finish in harsh operating environments, these heavy machines require powerful driving force, high load capacity, and precise control.
Here is how THOTH Hydraulics’ high-performance hydraulic solutions—the TMS03 Radial Piston Hydraulic Motor (available in shaft and wheel type) and the TMK Series Motor—work together to maximize the operational efficiency and durability of modern road rollers.
Spec Sheet · The Pairing
TMS03
Modular Radial Piston Motor · Shaft / Wheel Type
| Displacement | 160 – 400 ml/r |
| Speed range | 2 – 250 r/min (TMS series) |
| Shaft load | Axial + radial load capable |
| Options | Brake module, dual displacement, valves |
TMK04
Compact Inner-Curve Radial Piston Motor
| Displacement | 270 – 400 ml/r |
| Torque | 974 – 1,460 N·m |
| Speed range | 100 – 120 r/min |
| Integration | Motor + shaft + parking brake in one unit |
1. The Core of Powerful Compaction Drive: TMS03 Radial Piston Hydraulic Motor
Because road rollers must move heavy drums and chassis smoothly across uneven surfaces and steep inclines, the torque delivered directly to the driving wheels is of utmost importance.
- Modular Shaft / Wheel-Type Design: The TMS03 motor is available in both configurations — a shaft type for direct-coupled drum drives and a wheel type that installs directly inside the wheel hub. Either way, the compact, integrated design maximizes space efficiency within the chassis and minimizes mechanical power loss.
- High Torque at Low Speeds: It delivers robust, continuous torque even at low operating speeds, ensuring stable and uniform driving performance during critical compaction passes.
- Exceptional Load Capacity & Durability: Engineered with heavy-duty bearings to withstand high radial shocks and severe working conditions, it significantly minimizes equipment downtime and reduces maintenance costs.
2. Reliable and Efficient Powerhouse: TMK Series Hydraulic Motor
A road roller’s efficiency relies heavily on a well-balanced hydraulic system that can handle dual-drum drives or auxiliary propulsion systems reliably.
- High Pressure & High Efficiency: The TMK series orbital motor is designed to handle high pressure, providing a steady and efficient power flow to the roller’s auxiliary drive systems.
- Compact yet Powerful: Its optimized compact design allows for flexible installation in tight spatial layouts, making it an ideal choice for modern, sleek road roller engineering.
- Smooth Speed Switching: It supports smooth speed variations and consistent torque output, which prevents surface marking or uneven compaction on fresh asphalt.
3. Synergistic Effects of Hydraulic System Integration
The combination of THOTH Hydraulics’ TMS03 radial piston motor and TMK series motor takes road roller productivity to the next level.
By simultaneously enabling powerful wheel drive, high load-bearing capacity, and precise speed synchronization, this integrated hydraulic system shortens cycle times, prevents equipment wear, and contributes significantly to improved fuel efficiency.
THOTH Hydraulics delivers optimal engineering solutions by supplying high-performance hydraulic components, ensuring your construction equipment achieves peak performance on every job site.
For detailed product specifications, technical datasheets, or custom inquiries, please feel free to contact us at any time.