Atlas Copco has unveiled its latest handheld pneumatic break, the lighter RTEX.
According to Atlas Copco the RTEX slashes energy consumption by half, while at the same time being lighter and more ergonomic.
“Thanks to the invention of a new operating principle – Constant Pressure Control, improved energy transfer within the breaker and the new RHEX Power Chisel – the RTEX achieves record high breaking efficiency,” Atlas Copco said.
“The RTEX has the breaking capacity of a 30+ kg breaker, using only half as much compressed air whilst being 25 per cent lighter.”
It has a high breaking performance of 30 to 35 kilogram breakers, and weighs in at 25 kilograms.
Measured according to EN ISO 28927-10*, the 3-axes hand-and-arm vibration is below 5 m/s2.
Under these conditions an operator can work up to eight times longer than with conventional breakers, according to safety guidelines.
This is due to the Constant Pressure Chamber on top of the break that acts as pneumatic suspension.
Additionally, RTEX is more compact than traditional breakers, making it easier to work in restricted areas.
Due to its more efficient air consumption compressors only half the size are needed, or two breakers can be used on a compressor which previously only powered a single breaker.
This is all due to new working principles developed at Atlas Copco.
“In a conventional breaker air is discharged each time the acting piston moves up or down; in the RTEX we discharge the air only once – on the piston´s return stroke,” Atlas Copco engineers and inventors Olof Ostensson and Thomas Lijia said.
“Then the constant pressure from a chamber on the top of the RTEX pushes the piston down. The pressure on top of the acting piston is constant and therefore does not generate vibrations as on conventional breakers, so there is no need for vibration damping. To achieve this, we moved the valve from the top of the breaker to the bottom – our new “Up-Side-Down” (normally spelt 'upside-down') concept.
“The new, longer and heavier piston transfers power much more efficiently to the unique “RHEX” Power Chisel. Even though the RTEX can work with conventional chisels, the RHEX is specially tuned to our new breaker in order to achieve optimal shock wave interaction for better breaking performance. The RHEX also has a special concave tip profile which significantly reduces jamming. The new RTEX working principle, long piston and RHEX chisel have resulted in record high efficiency – 50 per cent less air needed for the same breaking capacity."