Pneumatic Piercing Tools
Grundomat
 

 

CODE 0468
DAY  $  250.00
WEEK  $  875.00
MONTH  $ 2500.00
Tool Diameter ............. 4.25"
Weight ......................... 215 Lbs
Length .......................... 66"
strokes Per Minute ......325
 
Minimum of 64 CFM Air Supply Required

The Grundomat Adventage
Grundomat pneumatic piercing tools have been providing accurate horizontal bores beneath roads, railways, and landscaping across North America and around the world for nearly 40 years. Water, gas, sewer and electrical industries have all benefited from this work horse of trenchless technology. Minimal operating space is required and the tool serves as a complement, and in many situations an economical alternative to, larger, more expensive directional drilling equipment.

How It Works
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. With decades of proven performance, the Grundomat’s patented stepped-cone head consistently provides accurate results.