Gulf Construction Online - Bobcat breaks new ground in breakers

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The HB280 breaker ... smallest in the range.

Bobcat breaks new ground in breakers

01 May 2009

BOBCAT’S HB880, 980 and 1180 80 Series breakers are now approved for use on the new E55W wheeled and E60 crawler excavators. All the breakers can be mounted using the pin-on, Klac or Lehnhoff systems, three of the four mounting systems currently available from Bobcat.

At the other end of the Bobcat excavator and breaker ranges, the smallest HB280 breaker — previously only approved for use with its integrated fixing cap on the company’s 316 micro-excavator — now has the modular fixing cap system used in the rest of the 80 series and, as a result, can be used not just on the 316, but also on the new E08 and E10 micro-excavators that have superseded the 316 model.
The HB880 has an operating weight of 232 kg, works with flow rates from 30 to 65 litres per minute and provides a blow rate ranging from 755 to 1,150 bpm for work on soft ground and a blow rate of 860 to 1,310 bpm when working on hard ground, says George Schmalzried, a spokesman for Bobcat EMEA (Europe and Middle East area).
With an operating weight of 268 kg, the HB980 breaker has blow rates of 855 to 1,060 and 1,170 to 1,450 bpm, respectively, and is designed for a hydraulic flow range of 45 to 80 litres per minute.
The blow rates in the 1180 model are 680 to 1,070 bpm for soft ground and 820 to 1,280 bpm for hard ground. This breaker has an operating weight of 386 kg and works with flow rates from 55 to 100 litres per minute. With a flow requirement of 13 to 23 litres per minue, the 65 kg HB280 breaker has blow rates of 600 to 1,450 bpm.
The 80 Series hydraulic breakers from Bobcat offer high performance, greatly reduced maintenance, and are easy to use. Designed for trenching, concrete demolition and general excavation work, the Bobcat breakers feature a frame with a cylindrical design, providing improved access to jobs in confined areas such as inside structures or holes. The breakers are equipped as standard with a special shield to protect hoses and fittings from being damaged when working close to the ground or in tight spots.
“The innovative design of the breaker hydraulic system provides increased efficiency, ensuring a longer working time without risk of overheating,” says Schmalzried.
“The breakers also incorporate a very effective soundproofing system, whereby the striking assembly is held top and bottom by suspension systems that are not in contact with the outer cylindrical housing.
“In addition, the breakers also feature a novel internal design with fewer moving parts and no tie rods. As a result, the breakers can be completely disassembled in less than five minutes, without the need for special tooling, reducing maintenance costs even further.”
The 80 Series pioneers a completely new way of working with a breaker. For the first time ever, either a bucket or a vibrating plate accessory can easily and quickly be fitted onto the breakers, he adds.