Mole Rental 5", 63" Long 195 lb Air Burrowing Tool

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Mole Rental 5", 63" Long 195 lb Air Burrowing Tool

MOLE5

Rental Item Details

5" Mole Underground Boring	Model 130P Grundomat
Weight	195 lbs
Hose length included	40 ft
Diameter	5 1/8"
Length	63"
Maximum distance	50'
Powered By	Air 185 CFM
DELIVERY ESTIMATE	GET RATE

Manuals

Spec Sheet, Grundomat Boring Tool

This TT Technologies Grundomat Pneumatic Hole Hog Missile rental requires a 185 CFM air compressor.

Used for horizontal bore jobs. The Grundomat underground piercing underground boring and pipe pushing/pulling missle tools are the most efficient, least expensive method for underground pipe or service placement in construction and installation work. Pneumatic Hole Hog missiles open clean, compacted, self contained tunnels for pipes, cables, conduits, or wiring at the lowest cost per foot. Hole Hogs eliminate the need to break pavement or disturb landscaping from trenching or open cuts. There's no reason to disrupt traffic by tearing up and restoring asphalt or concrete or callbacks for settling backfilled trenches. Hole Hogs break through the ground while horizontal boring under roads, driveways sidewalks, parking lots, runways, foundations, or virtually any obstacle. Also known as a pneumatic gopher or under driveway boring machine. Unit has a 40' hose on it. Can get approx. 35' of underground run out of unit. Used for trenchless boring.

Tool Cut-Away:

Tool Operation:

Grundomat vs Conventional:

Also known as a pneumatic gopher or missile or Trench less pipe install tool or boring missel or boring missile or hammerhead mole or air borig tool or boring machine or under boring missle or tunneling machine or borer. This is not a directional drill or directional boring machine. Those are far more capable. This is for shorter distances.

FAQ

When is this 5-inch pneumatic boring mole the right tool for the job?

This is commonly used for: boring conduit under concrete driveways; running water or electrical lines beneath paved roadways; installing utility sleeves under sidewalks; and tunneling beneath finished landscaping without open trenching. It is ideal for straight, short-distance horizontal bores where you want to avoid expensive surface restoration, but for long runs over 50 feet or paths requiring mid-bore steering, a horizontal directional drill is necessary.

What size air compressor is required to run this boring tool?

This tool requires a high-volume 185 CFM tow-behind air compressor operating at standard working pressure. Standard portable jobsite or shop compressors cannot supply the volume of air needed to cycle the 195 lb internal striking piston. Gap Power rents a Air Compressor, Tow Behind, 185 CFM, 120 PSI Max and a Air Compressor Rental, Tow-Behind, 375 CFM which both offer sufficient CFM for this 5" mole.

What is the maximum boring distance and included hose length?

The mole comes with a 40-foot whip hose, providing approximately 35 feet of continuous underground travel from the launch pit, with an absolute maximum rated bore distance of 50 feet. Trying to push beyond recommended distances increases the risk of the tool drifting off target or running out of hose travel.

Can this boring tool be steered underground?

No, this is a non-guided piercing missile that travels straight along the trajectory set in the entry pit. Careful alignment during launch is critical, as underground obstacles like heavy boulders or sudden soil transitions can deflect the tool off course.

What kind of excavation pits are required before launching the mole?

You must dig both an entry launch pit and a target exit pit to the desired utility depth. The entry pit must be long and wide enough to accommodate the 63-inch tool, line up your sight level, and provide adequate ground cover—typically at least 10 times the tool diameter (roughly 4 to 5 feet of cover) to prevent surface heaving.

What pipe or conduit size can be installed with this 5-inch mole?

With a 5 1/8-inch tool diameter, it creates a compacted bore hole suitable for 4-inch pipe, conduit, or multiple smaller utility lines. Pipe can either be pulled into the hole directly behind the tool using an adapter or slid through the completed bore after breakthrough.

How should this boring mole be transported and handled at the jobsite?

At 195 lbs and 63 inches in length, the tool fits easily into a standard pickup truck bed, van, or utility trailer. Because of its concentrated weight and rounded shape, plan on at least two capable workers or excavator lifting straps to lower it safely into and out of trenches.