AVN 250 XC - AVN 700 XC

Product catalog summary

Overview: The document provides technical specifications and features of Herrenknecht AG's AVN series tunneling machines, specifically models AVN250Xc to AVN700Xc, designed for pipe jacking in various ground conditions.

Special Features:

Machines are suitable for non-accessible sections and adaptable to soft, mixed, and hard rock conditions using different cutting wheels.
Reliable steering operation is ensured by an inductive measuring system.
Variable flushing modes and jet systems are available to suit different ground conditions, with a high-pressure water system for cohesive soils.
Equipped with a cone crusher, heavy-duty main bearing, and high torque peripheral drive.
Hydraulic power pack is housed in a control container, and all operations are remote-controlled.
Compatibility with the U.N.S. Guidance System is provided.

Technical Data:

Articulated Shield: Outer diameters range from 368 mm to 975 mm, with corresponding pipe outer diameters from 360 mm to 960 mm and pipe inner diameters from 250 mm to 800 mm.
Main Drive: Maximum torque ranges from 5.9 kNm to 40.1 kNm, with revolution speeds varying from 0-44 rpm to 0-11 rpm.
Steering: Equipped with three steering cylinders, force per cylinder ranges from 116 kN to 383 kN, with oil pressure at 500 bar.
Control: Features include a computer data logging system, optional fuzzy control for automatic steering, fully visualized process control, and active roll protection.
General Information: Recommended drive lengths range from 80 m to 140 m, with waterproofness rated at 3 bar.

Machine Dimensions:

Outer diameters range from 368 mm to 875 mm, with articulated shield lengths from 1,400 mm to 2,500 mm.
Maximum single weight varies from 850 kg to 4,400 kg.

Shaft Dimensions:

Launch shaft sizes vary, with compact jacking rig lengths and shaft sizes specified for each model.
Reception shaft dimensions are provided for both circular and rectangular configurations.

Machine Type Description:

Machine type, ID of jacking pipe, access to cutting wheel, and type of container are described, with specific codes indicating features such as no access, electric cable, hydraulic drive, and medium voltage supply.

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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.

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