HD Hyundai is adding to the versatility and productivity of its extensive line of wheeled and crawler excavators with the introduction of a range of silenced hydraulic breakers.
The HRB Series hammers are packed with innovative features to provide efficient performance and high-impact energy.
HRB breakers are available in six sizes for excavators with operating weights between 1.2 and 26 tonnes, with varying specifications available on larger models. All feature silenced box housing to reduce external noise levels, making them suitable for urban projects. They have a urethane damper to prevent vibration from transmitting to the carrier machine, reducing wear and improving operator comfort. The front head assembly also incorporates a bushing to reduce shocks from the working tool.
High-quality steels are used in the main cylinder and the piston, with an advanced heat treatment process delivering best-in-class service life for the main through-bolts. High-quality tools include a conical moil point for demolition and concrete and hard ground. A pyramidal moil point can be used for trenching, general excavation, asphalt, quarrying and reinforced concrete. The flat wedge chisel is also ideal for trenching, general excavation, and mass excavation in quarries and reinforced concrete demolition. Lastly, a blunt, flat end is designed for block splitting, compacting abrasive materials and concrete slab demolition work.
The two larger breakers offer several options. All HRB140 and HRB250 models have auto greasing through a front head grease hole and a cylinder head grease hole. They can also be ordered with anti-blank firing technology. The HRB250 is available with a nitrogen gas accumulator in the back head section, increasing the piston’s impact energy.
The HRB030 is designed for mini excavators with 1.2-3-tonne operating weights. The breaker features an impact rate of 700-1,200 bpm. The HRB040 is for 2.5-4-tonne mini excavators and boasts an impact rate of 600-1,200 bpm. Machines weighing 4-7 tonnes are suited to the HRB050, which has an impact rate of 500-900bpm, and the HRB060 works with 6-9-tonne machines, offering a 400-800bpm impact rate.
For larger excavators in the 10-15 tonne class, the HRB140 delivers 350-700bpm. It has three specifications: auto-greasing, anti-blank firing, and both options. The largest model in the line-up, the HRB250, is designed to work with 18-26-tonne machines. It has the accumulator and auto-greasing as standard, plus it can be had with anti-blank firing if desired.
All HD Hyundai HRB Series breakers are delivered with a choice of two chisels, and they come with a standard two-year manufacturer’s warranty, guaranteeing customers peace of mind. Though designed to deliver ultimate performance with the A-Series range of HD Hyundai excavators, the HRB breakers can be used with other manufacturers’ carrier machines to suit customers with mixed fleets.
