About us

We offer the following quality products - as well as other items not specifically listed - at a reasonable price:

Complete sets of microtunnelling equipment for microtunnelling and pipe jacking purposes, Cutting discs and cutting tools, Hydraulic cylinders for intermediate jacking stations and main stations, Bypass ball valves and complete bypasses, All types of cable in OEM quality (power supply and data communication), Navigation and guidance equipment, Tunnel intercom systems, Automatic bentonite control systems, Bentonite mixing and injection units, Hydraulic components, couplings, motors etc., Upskins including cutting wheels - all types, Compact jacking frames, Screens and spare parts for various brands and models of separation and de-sanding units, Frequency inverters, flow meters and electrical components, Feed- and discharge pumps from Habermann, KSB, Warman, Metso and others, Slurry lines and couplings (Perrot, Victaulic and others), And many more…

parallax background

The company is owned by Frank Schwarzer who holds the position of managing director

Career and references:

  • 1992 – 2003

    Founder and managing director of Schwarzer GmbH based in Wesel, now "Centerline GmbH".
    Schwarzer GmbH specialises in navigation and data acquisition systems for the tunnelling industry. In 2003 the company was sold to VMT GmbH - a subsidiary of Herrenknecht AG, Schwanau.
  • 2003 – 2005

    Interim head of sales of the Microtunnelling Business Unit (BU-UT) at Herrenkecht AG responsible for the sale of tunnel boring machines in South-East Asia. His region incorporated all countries south of Thailand including Australia and New Zealand.
  • 2005 – 2008

    European Agent (sales agency) of the "Industrial Group“ of the NOV Brandt company based in Houston, USA.
    Responsibility: Opening up and developing new markets outside the oil and gas core business areas.
  • 2008 – 06/2013

    Founder and managing director of the Wesel-based ITE GmbH. ITE GmbH specialises in solutions in the field of solid/liquid separation, in particular for tunnelling and microtunnelling purposes.
  • Since 07/2013

    Tunnel24.com - sole owner and chief operating officer.