Tunnel boring machine - Wikipedia

A tunnel boring machine (TBM), also known as a "mole", is a machine used to excavate tunnels with a circular cross section through a variety of soil and rock strata. They may also be used for microtunneling. They can bore through anything from hard rock to sand. Tunnel diameters can range from a metre (done with micro-TBMs) to 19.25 metres to …

Meet Crossrail's giant tunnelling machines - YouTube

Tunnel Boring Machines The Next Generation of Versatility Crossover TBMs take the Guesswork out of Mixed Ground Tunneling Whether the geology of your project includes sections of hard rock, soft ground, boulders, or a little bit …

Crossover Machines | The Robbins Company

Find your tunnel boring machines and equipment easily amongst the 86 products from the leading brands : (Sandvik, Normet, Cimolai, ...) on DirectIndustry, the industry specialist for your professional purchases.

Tunnel boring machines and equipment - DirectIndustry

_____ Used tunnel boring machines from Herrenknecht are a reliable and cost-efficient alternative to purchasing a new TBM – if the project circumstances fit. If ground conditions and the machine technology match and if the profile diameter is more or less the same, a used and completely refurbished TBM can render the same good …

Used machines - Herrenknecht AG

Jumbo drills for mining and tunneling ... We offer a full range of drilling machines for tunneling and mining works, ... Mine drill arm used in a tunnel

How a Tunnel-Boring Machine Drills Underground - YouTube

Description Zdy Series Hydraulic Coal Mine Tunnel Drilling Machine It is available of all direction position (±90′) for in underground coal mines.

Jumbo Drills Mining Machine, Tunneling Drilling Equipment ...

Meet our giant tunnelling machines. Digging the new tunnels was a 24-hour a day job, 7 days a week. Crossrail used eight tunnel boring machines (TBMs) to construct the new rail tunnels under London.