Ground freezing tubes and accessories

One the methods used to improve the ground in the underground construction and mining industries is the ground freezing or soil freezing.

This technology consists in drilling a series of number of holes, close one to the other, to a certain depth, fill them with special tubes where refrigerant will run into, so that the surrounding ground will freeze becoming hard as rock and waterproofed. Therefore, the ground can be excavated without running the risk of wall collapsing.

We produce the tubes aimed to drill and be left into the holes. The threads, male female kind, are machined to be quickly assembled and waterproofed as the refrigerant should not spread into the soil. The tungsten carbide drill bit, with the inner one-way valve are manufactured in our factory.

We have supplied several projects world wide.


Ltm S.r.l. is a company that operates in the field of micropiles, since 1982. The main objective of Ltm is the one of supplying, high quality finished goods, constantly improving the workmanship, so to offer to the clients a superior product.

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