Comprehensiv services for microtunneling and utility tunneling projects

Purchase & sale of used high-quality machines

VSA focuses on high-quality used microtunnelling machines “Made in Germany.”

We provide knowledgeable support to customers throughout the entire purchase or sale process – from technical evaluation and price determination to international logistics.

Technical inspection and quality assurance

Each used machine is inspected and serviced in detail to ensure reliable and efficient project implementation.

• Pipe jacking & slurry systems
• Diameter: 400–2,500 mm
• Tunnel lengths: up to over 1,000 m
• Complete documentation & technical inspection

Comprehensive repair and maintenance

Mechanical, hydraulic, and electrical overhaul of existing systems with a focus on operational safety and longevity.

Technical advancement of existing systems

Integration of new components and parts, performance optimization, and modernization of control and hydraulic systems.

• Modernization of existing systems
• Performance enhancement & service life extension
• Adaptation to new project requirements

Development and programming of control software

• PLC programming
• Automation concepts
• Modernization of existing systems
• Integration of new control systems

Planning, installation, and system integration

Complete planning, control cabinet construction, installation, and commissioning of new control systems.

Process visualization and data technology

• Optimization of control and monitoring
  Visualization solutions for precise display of operating parameters.
• Data recording and analysis
  Systematic data acquisition to optimize efficiency, precision, and safety in tunneling.

• Customized solutions for precise pipe jacking
  Development and integration of high-precision navigation systems for tunnel boring machines.
• Integration into existing machine concepts
  Adaptation to customer-specific machine configurations.

Identification of wear and spare parts

Technical evaluation and precise allocation of suitable components.

Procurement, storage, and logistics

Efficient spare parts supply to minimize project interruptions.

• Original and alternative spare parts
• Hydraulics, electrics, mechanics
• Fast spare parts delivery
• Obsolescence management

Hardware development and system design

• Electrical circuit diagrams
• Control cabinet construction
• Sensor and actuator integration
• Power electronics

Optimization of automation, performance, and safety

Customized solutions to increase reliability and operational efficiency.

• Commissioning
• Maintenance & repair
• Remote support & fault analysis
• Technical consulting