Special-shaped TBM
Micro TBM
The CRCHI micro TBM is engineered for ultra-small-diameter rock excavation. The ZTT550 has been deployed through granite at uniaxial compressive strengths up to 220 MPa, using a vacuum spoil-removal system for rapid muck handling in confined working space.
Features
Ultra-small-diameter bore for rock with uniaxial compressive strength up to 220 MPa
Vacuum spoil-removal system enables rapid muck handling in highly confined space
Configuration and engineering
Every CRCHI TBM is engineered to project. Shield diameter, cutterhead geometry, drive power, segmental ring design and back-up arrangement are configured to the alignment, ground conditions and water pressure of the drive. Project-specific scope beyond the standard envelope is engineered to brief, and where a drive calls for it, a machine is developed from the ground up. CRCHI Australia is the engineering, commercial, commissioning and aftermarket point of contact for Australian projects.
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Interested in the Micro TBM?
Contact our team for full specifications, project sizing, and pricing.