• Face support is provided by earth pressure.
• Soil conditioning is possible through foam injection in the excavation chamber and screw conveyor.
• Designed for soft and mixed ground conditions using different cutting wheels for full face excavation.
• Access to the cutting wheel for tool replacement is facilitated by a backloading system.
• Steering operation is highly reliable due to an inductive measuring system.
• Equipped with a heavy-duty, long-life main bearing and high torque main drive.
• Medium-voltage power supply line connects to the machine power pack.
• All machines are compatible with the U.N.S. Guidance System.
• Muck pump conveyance is possible.
• Shaft dimensions are tailored to specific projects.
• Suitable for Combisegments™.

• Articulated Shield: Outer diameters range from 2,910 mm to 4,660 mm, with segment outer diameters from 2,700 mm to 4,500 mm and segment inner diameters from 2,300 mm to 4,000 mm.
• Main Drive: Maximum torque ranges from 1,020 kNm to 2,300 kNm, with rated power between 250 kW and 800 kW.
• Steering: Equipped with 8 steering cylinders, with force per cylinder ranging from 690 kN to 2,040 kN.
• Control: Features include a computer data logging system, fully visualized process control, and active roll protection.
• Push Module: Includes wire brush seal with automatic lubrication and propulsion cylinders ranging from 12 to 16, with total force up to 22,150 kN.
• General Information: Recommended drive length is 2,000 m to 3,500 m, with waterproofness rated at 3 bar.

Herrenknecht AG is a leading technology and market leader in mechanized tunneling, providing high-tech tunneling machinery for all ground conditions and diameters.