Atlas Copco’s new generation of Cobra gas drills and breakers have been designed for stricter exhaust emission standards. Featuring improved carburetor and filter systems and a redesigned noise reduction system that includes a catalytic element, the Cobra Combi, Cobra Pro and Cobra TT gas drills and breakers offer a 50-percent reduction in the emission of hydrocarbons compared to their predecessors.
Cobra Combi is a multi-purpose machine featuring a high impact mechanism with rotation option and a built in compressor for flushing. It is ideal for onsite jobs such as breaking, drilling, cutting, driving and compacting.
Cobra Pro is the combination of high percussive energy and high blow frequency. It delivers almost twice the impact energy of other gas-driven breakers and offers the same power-to-weight ratio as many pneumatic or hydraulic breakers, according to the manufacturer.
Cobra Pro is used for breaking concrete and asphalt, tamping and compacting, digging, driving posts, fences, rods, tent stakes and spikes.
Cobra TT has been specially designed for tie tamping. It works at the relatively high frequency of 1,620 blows/min. and the impact energy has been optimized to prevent pulverization of ballast. It can be carried on and off track quickly and easily.
All models feature an electronic ignition, choke and a redesigned fuel cap for better regulation of tank pressure. Cobra Pro and TT also feature a decompression valve. An optional guide roller is available for the Cobra Combi to make it easy to pull downwards to start the machine when it is positioned high in relation to the operator.
The high-capacity air filter can handle large quantities of dust, and it is easy to access for servicing in the field. The new front cover now features an integrated heat shield.
All Cobra machines work independently from external power sources. They feature a 90 cc, two-stroke motor with a fuel capacity of 0.26 gal. (1 L). Transfer on and offsite is easy and can be carried out by a single operator. All three models feature the highest impact energy and lowest vibration levels of any other gas breaker available on the market.
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