Atlas Copco says the newest addition to its heavy hydraulic breaker line, the HB 4100, provides better performance and higher efficiency than the preceding model and weighs less. According to the supplier, the HB 4100 has a service weight of 9,039 lb (4,100 kg) making it suitable for carriers in the 88,185- to 154,324-lb [40,000- to 70,000-kg] weight class, but is as powerful as other, much heavier breakers.
The new breaker features a guide system that makes the breaker more stable and resilient, with a new cover plate for the retaining bars that offers more protection in the lower part of the breaker. Along with increased wear protection at the bottom of the case, other standard features include the VibroSilenced system that protects operators against noise and vibrations; PowerAdapt, which switches the breaker off in the event of a hydraulic overflow; AutoControl, to adjust the blow frequency and blow energy to match the hardness of the material; the ContiLube II integrated, automatic lubrication system; and StartSelect, which allows the operator to influence the startup and shutdown behavior of the hydraulic breaker. An optional DustProtector protects the lower part of the hydraulic breaker from dust and rock particles. www.atlascopco.com