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Mon March 17, 2008 - National Edition
Atlas Copco Construction Tools LLC’s HB 10000 is the most powerful unit in its line of heavy hydraulic breaker attachments. The new breaker offers features to increase productivity and efficiency in demanding breaking applications, according to the manufacturer.
Weighing in at 11 tons (10 t), the HB 10000 delivers 50-percent more impact energy than Atlas Copco’s HB 7000, based on AEM ratings. In combination with PowerAdapt, AutoControl and other Atlas Copco breaker technology, the power provided by the HB 10000 makes it an option as a cost-effective production machine for primary rock breaking, and a viable alternative to certain drilling and blasting applications. The new breaker also is an ideal solution for heavy excavation and trenching projects, as well as for efficient demolition of large, strong concrete structures, according to the manufacturer.
Accepting hydraulic flow of 119 to 140 gal. per minute (450 to 530 Lpm) at operating pressures of 2,320 to 2,610 psi, the HB 10000 delivers an impact rate of up to 380 blows per minute for maximum production in the most extreme breaking conditions. The breaker is suitable for carriers in the 94- to 154-ton (85 to 140 t) weight class.
For built-in protection, the HB 10000 features PowerAdapt, a system that automatically shuts down the breaker in the event that it receives excessive oil pressure from the carrier. The breaker returns to normal function once the situation is corrected. This is designed to prevent damage to internal breaker components and provide protection against carrier auxiliary circuit set-up complications that can arise when attaching the breaker to different carriers.
The HB 10000 also comes standard with AutoControl, a monitoring system that allows the breaker to adapt its frequency and power output to match operating conditions. It begins by firing the first stroke at half power to create a pilot notch that helps to center the working tool and prevent unnecessary slippage. It then adjusts the power output to match the density of the material to be broken. This reduces excess shock to both the breaker and carrier, lengthening service life on tension bolts and retainer bars.
To further maximize efficiency, the HB 10000 features the StartSelect system, which allows start-up and shut-off to be adjusted to fit job-site conditions. In AutoStop mode, the breaker will not fire until the operator applies down pressure on the working tool via the carrier. AutoStop eliminates damaging blank firing by circulating the hydraulic oil internally under low pressure when down pressure is not applied to the tool. AutoStop also is ideal for circulating and warming the hydraulic system and breaker before breaking in cold climates.
In AutoStart mode, the StartSelect system works hand-in-hand with AutoControl. The breaker begins operating as soon as the working tool comes in contact with the material regardless of down pressure, but power is limited to 50-percent until the tool can be fully seated in the breaker. This helps ensure that the breaker is properly positioned to accept full single blow energy safely without a damaging blank fire. AutoStart mode makes the breaker more versatile and is ideal for demolition applications.
An energy recovery system designed to prevent damage from piston recoil on extremely hard materials also is standard on the HB 10000. The energy recovery system consists of a shuttle valve that detects piston rebound and a high-pressure accumulator that stores energy from piston recoil to use on succeeding strokes, increasing the breaker’s blow performance. Recycling recoil energy increases breaker efficiency and reduces pressure spikes transmitted back to the carrier.
For prolonged service life, the HB 10000 features DustProtector II and ContiLube II. The DustProtector II feature restricts dust penetration by utilizing a reusable sleeve and wiper that contacts the working tool at the base of the breaker. This protects the inner mechanism from the damaging effects of dust. ContiLube II is an automatic lubrication system mounted directly on the breaker. Featuring a compact, self-priming pump, ContiLube II eliminates the need to manually grease the breaker before and during each use.
To reduce excess vibration and noise, the HB 10000 comes equipped with the VibroSilenced damping system. Elastic elements between the percussion mechanism and guide system provide full acoustic insulation, reducing noise significantly compared to similar systems.
The HB 10000 uses a working tool of 9.45 in. (24 cm) in diameter at working lengths up to 35 in. (89 cm) Tool options include the moil point for multi-purpose use, the flat chisel for rock breaking and demolition, and the blunt tool for breaking rock, concrete and oversized material.
To protect the customer’s equipment investment and help ensure consistent productivity, the HB 10000 is accompanied by the Atlas Copco Pro Care customer service package as standard. Since many breaking applications are likely to cause significant wear and stress on equipment, worn components and other issues must be addressed in a timely manner. ProCare essentially takes the responsibility for periodic breaker maintenance out of the end user’s hands.
For more information, visit www.atlascopco.us.
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