GRUNDOMAT – P

THE PIONEER

THE MAINSPRING
ON TARGET EVERY TIME

PISTON SEAL, SLIDE BELTS & CUTTING HEAD SEAL

Guarantee great efficiency and low air consumption while preventing dirt from getting inside and causing power to be lost.

SIMPLE SWITCH-OVER
between forward and reserve gear.

Manual control: Switching over from one forwards to one reverse gear under operating pressure by 1/4 turn to the left of the compressed air hose.

Servosteuerung: Optional switching over between one forward and reverse gear under operating pressure by throwing the lever.

WORKING PRINCIPLE STEPPED HEAD
The stepped head is universally applicable as it can work in every kind of displaceable soil. The tip of the cutter bit starts a preliminary pilot bore and then the soil is gradually displaced to the outside. The steps of the head shatter the obstacles before discharging them. This modus operandi guarantees high running stability and a strong, wide pressure cone is generated in front of the stepped head.
STROKE ONE
Stroke one applies impact to the cutter bit with the piston, thus forcing the head to generate the bore hole and eliminate obstacles. The impact energy is concentrated on the cutter bit and the bore head.
STROKE TWO
During the second stroke, the bore head moves freely in the bore hole and the piston aims the impact right up to the casing. The impact power of the piston is concentrated on the casing, the complete machine (with the pipe attached) moves up from behind.
The two-stroke principle helps to overcome peak resistance and coat friction so the highest possible directional stability of the GRUNDOMAT is achieved.

TECHNICAL SPECIFICATIONS

P STANDARD VERSION 

PK SHORT VERSION
The short displacement hammers are excellent for the application in confined spaces.

TECHNICAL DATA

FAST AND SAFE INSTALLATION OF GAS SERVICE LINES IN TOUGH CONDITIONS

While it is often assumed that individual methods of trenchless installation tools and technology compete for projects, that’s not always the case. On a recent gas main and service replacement project, contractor Underground Construction Co. Inc. headquartered in Benicia, CA, was able to effectively employ the soils displacement method and horizontal directional drilling for installing approx. 3 kilometres of gas mains and about 120 gas service connections. The project was completed at a golf course retirement community in Sun City West, Arizona.

Scroll to Top