The totally self-contained hydraulic attachment delivers up to 40 bpm to demolish both horizontal and vertical concrete flatwork, such as floors, driveways, bridge decks and roadways up to 12 inches thick. An internal hydraulic cylinder and valve system compress a heavy compression spring set, which loads the system with 3,350 psi of hydraulic pressure.
On the return stroke, it releases the trigger mechanism that fires the 4-inch impact bar with up to 4,000 foot-pounds of impact force.
"A single blow rubblizes the concrete at a 45-degree angle from the point of impact, reducing labor-intensive jobs to fast demolition and cleanup," says Philip Paranic, operations manager and Hammerhead II product manager at Allied. "Using a simple operation, it impacts and resets automatically. And without relying on gravity, it will fire horizontally without losing power."
With only three moving parts, the Hammerhead II offers a simple, rugged design that minimizes maintenance and repair costs. Plus, there is no nitrogen gas to check or charge.
"At about one-third the cost of a comparable hydraulic hammer, a contractor can break slab concrete faster and less expensively, which can determine whether or not he gets the job," states Al Springer, national sales manager at Allied.
The Hammerhead II Model HB 550 mounts on a 5,000- to 9,000-pound skid-steer loader, a 7,000- to 15,000-pound compact excavator or a 9,000- to 16,500-pound backhoe-loader.