GP350 Grout/Injection Machine: Less Weight, More Flow

The GP350 Grout/Injection Machine offers the same pumping and injection features as other Geoprobe® grout machines at higher flow rates but in a much smaller, very mobile package.

GP350 Grout/Injection Machine

Customers wanted a machine with similar features as the GP350 Injection Machine, but without the GP350’s weight ( 5 lb.). Weighing less than 150 lb., the GP350 can be loaded for transport by two people, and can be easily maneuvered around a project site by one field person. The machine was designed to inject remediation materials or for bottom-up grouting through small diameter probe holes. The GP350 is also capable of delivering standard ASTM grout mixes, and, based on the power source, provides operating pressures up to 1,850 psi with a maximum flow rate of 5 gpm. The machine is powered using auxiliary hydraulics on the Geoprobe® machine, so it’s adaptable for use in the field with multiple machines.

GP350 Features:

* Small, light-weight package
* Designed for Injection of REmediation Materials
* Grout Probe Holes from the Bottom Up
* High Pressure enables Grouting by Small Tremie Tubes
* Easy to Disassemble for Cleanup
* Dual Reciprocating-type Piston Pumps
* Few Replaceable (wear) Parts
* Operates on Auxiliary Hydraulics
* Use with Multiple Geoprobe Units
* Speed Control on Injection Machine
* Optional Viton seals for pumping harsh Remediation Materials

GP350 Specifications:

Weight (without grout)	145 lbs.	66 kg
Height	29.8 in	757 mm
Width	20.6 in	523 mm
Lenth	38.7 in	983 mm
Hopper Capacity	12.75 gal	48.3 L
Hopper Capacity (3 in. freeboard)	9.5 gal	36 L
Pump Displacement	13 cu. in	213 mL
Pump Pressure Rating	1850 psi	128 bar
Pump Flow Rate	0-5 gpm	0-18.9 Lpm

 

 

The GP350 Grout/Injection machine recieves power from auxiliary hydrolic ports on a Geoprobe® machine.

Patrick Richmeier, Project Engineer, attaches a Grout Pull Cap to the top of a rod string in preparation for materials injection.