Shield Machines Equipped with DRS Rail Wheel System

With the support of Demag wheel block, the shield machine can continuously excavate underground, which greatly improves the speed and efficiency of tunnel construction. The DRS travelling wheel block becomes the ideal choice of the shield machine.

Superior Characteristic of the DRS Wheel Block

• Strong adaptability: the Demag travelling wheel block can adapt to different geological conditions and complex underground environment to ensure the stable operation of the shield machine.

• High load capacity: Designed to withstand the loads of shield machines and their excavations,  the DRS wheel block has an excellent load capacity of up to 60 tons.

• Easy maintenance: Due to the reasonable modular design, the maintenance and replacement of the wheel block is relatively simple, reducing the maintenance time and cost.

• Durability: Made of high quality ductile iron and polyamide material, the travelling wheel  can maintain a long service life under harsh working conditions.

• Stability: The optimized wheel block design provides good stability and reduces the vibration and noise of the shield machine during tunneling.
  

• Modular design: The modular structure allows the travelling wheel block to be customized and expanded according to the specific needs of the shield machine.

  

Parameters and Accessories of the DRS Wheel Block

• Load range: The travelling wheel block has a wide range of loads, ranging from 2.75 tons to 40 tons.

• Dimensions: Demag traveling wheels are available in multiple sizes - DRS112-500mm, making it ideal for selecting well-matched models and specifications for shield machines.

• Wheel material: The material choice of the wheel, such as polyurethane, cast iron or other high-performance materials, affects its wear resistance and load carrying capacity.

In tunnel construction projects, the shield machine and the traveling wheel block form a critical power and support synergy system. As the core load-bearing component enabling the shield machine to move along its track, the traveling wheel block directly impacts the equipment's excavation stability, efficiency, and safety. With its strong adaptability, high load capacity (up to 40 tons), and modular design, the Demag DRS series traveling wheel block serves as an ideal matching choice for shield machines, capable of operating in complex geological conditions and ensuring continuous long-distance tunneling.

This system is widely used in underground projects such as subways, railways, and water conveyance tunnels. By providing a reliable traveling mechanism, it supports the efficient operation of the shield machine. The durable materials (e.g., ductile iron, polyamide) and optimized structural design of the traveling wheel block effectively reduce vibration and noise, extend service life, and lower maintenance costs. Furthermore, its broad load range (2.75 to 40 tons) and multiple size specifications (e.g., DRS112-500mm) allow shield machines to select the most suitable model based on project requirements, maximizing overall performance.

In summary, the traveling wheel block is not only the technical enabler of the shield machine’s propulsion function but also a core component that enhances the efficiency and safety of the entire tunnel construction process.