Hydraulic Monoblock Hammer

The UNI range breakers UNI 390 & UNI 1000 are built in a Hydraulic Monoblock Hammer without tie-rods for an exceptional reliability. The tool bushings are installed from the bottom, while the internal sleeves are installed from the top. The breakers are equipped with one sole accumulator which is only charged once, no need to recharge often.

The accumulator caps the whole internal engine. A hammer without tie-rods is much more reliable and in case of break-down it is easier to repair and economic to service. An Isolation with vulcanized polyurethane between the metal case and the monoblock drastically reduces the noise and the vibrations. A hydraulic brake on the piston prohibits the breaker from harmful blank firing. A flow diverter valve is placed inside the monoblock with the function of prohibiting excessive oil-flow to the breaker and to regulate the working pressure.