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Technology Factsheet

Impact Moling

Category: Robotics > Dismantling and Retrieval > Industrial Robot
Reference # : Model No :

Impact moling is an unguided soil displacement technique in which a percussive mole is launched from a small excavation to form a bore through the ground. The new conduit is normally drawn in behind the mole or pulled back into the bore using the hammers reverse action.

Site: *
Industry:Construction
Size:Large (20-100kg/40lb-200lb, 60cm-120cm/24in-48in)
TRL:Operational (9)
TRL2: *
Tether:Yes
Waterproof: *
Payload: *
Reach: *
Manipulator: *

Benefits

Limitations

Comments

Compressed air repeatedly propels the piston against the rear of the chisel head assembly. This first compresses the pre-tensioned steel spring which forces the chisel head assembly forward independently of the main casing to provide a pilot bore. Then, the same continuous force thrusts the main casing ahead

Fixed head "conventional" piercing tools have a tendency to take the line of least resistance when encountering difficult soils and obstacles in their bore path. When they hit an obstruction, they're easily knocked off-course... resulting in a failed bore.

The reciprocating stepped-cone chisel head action is unique because it hammers away at solid obstacles. This two-stroke action means that the piston's impact is concentrated on the reciprocating tool head for optimum boring performance.

It can perform accurate horizontal bores from 50 to 150 feet in length. The Grundomat can be used in all displaceable soils: sand, loam and even gravel and is easily configured to pull in a wide variety of new pipe materials.

Operational Experience:

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