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Small TBM operation can be straightforward with hydraulic motors driving the cutterhead and manual hydraulic valve banks for machine control, or more like a large TBM with electric cutterhead motors and push-button operational control panels, depending on the contractor’s level of expertise.
Muck removal often involves rail-bound rolling stock pulled by diesel locomotives. Battery-powered locomotives are typical when overall expenses for ventilation ducting and locomotive maintenance are taken into account, however, to reduce ventilation requirements in the smaller space.
The global TBM cutter motor market accounted for $XX Billion in 2022 and is anticipated to reach $XX Billion by 2030, registering a CAGR of XX% from 2023 to 2030.
Liebherr exhibits its selection of tunnel construction components to trade attendees at Bauma China this year. In its marketing materials, Liebherr positions itself as a supplier of parts for the tunnel construction industry.
Thus, the new gearbox and electric motor series, which are made public to the trade public for the first time in Shanghai, are the main focus (China).
The new series of gearboxes and electric motors for tunnel boring machines are also in the show’s limelight, in addition to the main bearings that have previously been successfully introduced to the market.
Any commercially available electric motor can be fitted essentially without effort thanks to the interface architecture.
With the high-performance and small KFE series squirrel cage motors, Liebherr will also broaden its selection of tunnel boring machine components.
The series was created using a modular system and satisfies all customer demands. The motors are extremely effective and have a high performance, even in the smallest sizes, thanks to their optimised water cooling.
The machines are offered in a variety of voltage levels and have a power range of 50 kW to 400 kW. Liebherr’s electric machines are perfectly suited for use in applications requiring high shock and vibration loads because of their experience in those types of applications.
