APE March 2021 | Page 8

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ing for solutions for these jobs , and we wanted to engineer something that could keep up with high-demand projects , but still be versatile enough for smaller , everyday jobs ,” said Crocker .
Rumbling down the road
The road to the Grinder Hod actually began with the Rumble Hog . By mounting a cutting drum on the rear of a Ford F-750 , the Rumble Hog became a three-in-one solution : it grinds pavement markings ; grooves pavement for inlaid markings ; and cuts rumble strips . After a while , the Hog developers needed a chassis with more power , so they switched to the Mack GU432 chassis . With that , they were able to offer additional features such as an off-loading auger , scissor lift high dump and an optional cutting package that can perform recessed reflectors cuts and sinusoidal cuts . While that solution proved to be invaluable , Hog Technologies soon discovered that contractors were still looking for a traditional design that featured heads on each side of the truck . So , Hog Technologies went back to the drawing board with the goal of improving on the decades-old grinding truck design . With that in mind , the Grinder Hog was born . Like the Rumble Hog , the Grinder Hog can also grind , groove , and cut sinusoidal rumble strips . Aside from a few options that come standard on the Grinder Hog , however , that ’ s where the similarities stop . Rather than a Mack GU423 chassis , the Grinder Hog is mounted on a heavy-duty Peterbilt 520 chassis . It comes standard with a grinder head on each side of the truck ; however , there is the option to add a third and fourth head . The heads can extend up to 36 inches from the chassis and support PCD grinding teeth in full-round , double-round , and full-flat styles for a variety of different cutting profiles . Despite its cutting-edge capabilities , actually using the Grinder Hog follows the company ’ s commitment to creating equipment that ’ s easy to use . With the Grinder Hog , this is accomplished with something called Computer Controlled Profiling . With CCP , the Grinder Hog can perform plunge , recessed reflector cuts and sinusoidal cuts without the need for an additional cutting package . The trick to the CCP ’ s simplicity is its state-ofthe-art programming , which can be controlled with an user-friendly touch screen in the cab . To perform the same tasks on a Rumble Hog , that package would need to be added . The Grinder Hog also comes with smart cylinders that help control the precise depth of each cut being made -- down to a thousandth of an inch . To ensure that the profiles are cut
Grinding with full vacuum recovery
accurately , the truck has a Low-Speed Control feature , allowing an operator to grind at speeds as low as 8 MPH with features built in to control the speed for each profile cut being made . This also means that an operator doesn ’ t need to continuously monitor both the speedometer and the crosshairs at the same time . This greatly reduces the margin of error .
Accurate -- and clean -- grinding
Something else that helps reduce error is the Grinder Hog ’ s Master / Follower function for the grinding heads . Using the Master / Follower function , a single operator has the ability to run
Change type of cuts , patterns , depths and more from a touch screen
all heads while maintaining exact lane width and continuity across the truck . While these features create an efficient way to perform a job , typically cleaning up after a cutting project requires a separate vehicle to run behind the machine . The Grinder Hog alleviates this need with eight-inch positive displacement blowers , ranging from
2,200 CFM to 6,600 CFM at up to 15 ” Hg , that power a simultaneous vacuum recovery system . Dirt and debris are sucked up as the cutting is being performed , leaving you with a nearly dustless operation . The debris is stored in a debris tank with six cubic yards of usable space that can be lifted at a minimum of 47 degrees for easy dumping into a dump truck or container . After dust and debris is collected , it needs to be filtered . The Grinder Hog has a double-filtration system for this purpose . To help keep the filters clean , it also has a feature called Sonic Vibration Technology . This is an auto-reverse air pulsing system that uses air www . callape . com [ 8 ] 1.800.210.5923