French company Roues Somac has developed specialized tractor wheels engineered for use in extremely waterlogged soils. Originally designed for flooded crops such as rice, the wheels can also be deployed in tillage operations, including residue incorporation.

Key Features

• Cage-type design with a fully metallic structure

• Asymmetrical cutting angles to enhance traction in soft soils

• Ability to operate in flooded rice fields and dry, crusted paddies

• Suitable for stony paths with limited vibration impact

Design and Applications

The cage configuration—characterized by an open, cylindrical metal structure—allows the wheels to maintain grip in saturated soils where conventional tires lose efficiency. The uneven blade angles further optimize traction by improving soil penetration and reducing slippage.

In addition to their primary use in rice cultivation, the wheels can break hardened surface layers in dry paddies and operate on rough or stony terrain without generating excessive vibration.

Company Profile

Roues Somac, based in Lor, France, specializes in the development and production of wheels for agricultural machinery and related traction components. The company was founded in 1955, initially focusing on cage wheels for rice cultivation, and has since expanded its portfolio to include narrow tandem wheels and a range of traction system components.

Market Relevance

Specialized wheel solutions such as cage wheels remain critical in regions with intensive rice production, particularly in Asia and parts of Europe. Their ability to extend machinery usability across varying field conditions supports operational efficiency and reduces the need for dedicated equipment.

Conclusion

Somac’s cage wheel technology highlights the ongoing role of mechanical innovation in adapting agricultural machinery to extreme field conditions, particularly in waterlogged environments where standard traction solutions are insufficient.