With a head diameter of 1-3/4”, Minnich HV-3 Series hydraulic internal paving vibrators are well-suited for smaller slip-form applications. Minnich paving vibrators are designed to withstand the rigors of the industry. For mainline paving, a block isolator offers better shear spring rate, less area for concrete build-up and a greater rubber-to-steel bond area. This translates to less end-of-day clean-up time, reduced transfer of vibration to the paver and less wear on the isolators. A two-isolator setup can fit into tighter areas for barrier wall molds. The hydraulic hose features an abrasion-resistant coating to help reduce vibrator failure. A specially designed Minnich three-gear motor provides hydrostatic balance for longer motor life and greater starting torque.