Several manufacturers present products for applications in colder regions as "Cold Climate" versions (CCV). But the CCV marking on a device does not necessarily mean that these products are in fact suitable for cold climate conditions. The CCV product by Mayr power transmission has been certified by Germanic Lloyd (GL) as the only electromagnetic safety brake for applications down to -40 °C.
ROBA-stop-M safety brakes in the Cold Climate Version, installed in a pitch drive.
The definition of cold climate according to GL Wind states that temperatures of below -20 °C can occur. It really depends on the planned location of application and the manufacturer’s specifications to which minus temperatures functional and operational safety have to be guaranteed. In cold climate projects, storage temperatures of -40 °C and below are frequently demanded.
The safety brakes, which are based on the "ROBA-stop-M" series, guarantee minimum downtimes and optimised fail-safe function. In de-energised conditions such as after an emergency stop or power failure, these electromagnetic, spring applied safety brakes are closed and therefore accord with the high safety requirements. Masses and loads are held safely and reliably. On switching on the power, a magnetic field is built up, which attracts the armature disk against the spring pressure to the coil carrier. This releases the brake, and the shaft can then rotate freely.
In comparison to other safety brakes available on the market, the ROBA-stop-M brakes provide a few advantages with regard to the ease of maintenance and operating safety. These include the enclosed construction design, the high Protection, IP54 or IP65, and the high-quality corrosion protection. In addition to the high-quality drive elements, Mayr also provide years of experience in wind power technology based on intensive collaboration with renowned drive manufacturers.Contact:
Hermann Bestle | Chr. Mayr GmbH + Co KG
PRESTO – Highly Dynamic Powerhouses
15.05.2017 | JULABO GmbH
Making lightweight construction suitable for series production
24.04.2017 | Laser Zentrum Hannover e.V.
Whether you call it effervescent, fizzy, or sparkling, carbonated water is making a comeback as a beverage. Aside from quenching thirst, researchers at the University of Illinois at Urbana-Champaign have discovered a new use for these "bubbly" concoctions that will have major impact on the manufacturer of the world's thinnest, flattest, and one most useful materials -- graphene.
As graphene's popularity grows as an advanced "wonder" material, the speed and quality at which it can be manufactured will be paramount. With that in mind,...
Physicists at the University of Bonn have managed to create optical hollows and more complex patterns into which the light of a Bose-Einstein condensate flows. The creation of such highly low-loss structures for light is a prerequisite for complex light circuits, such as for quantum information processing for a new generation of computers. The researchers are now presenting their results in the journal Nature Photonics.
Light particles (photons) occur as tiny, indivisible portions. Many thousands of these light portions can be merged to form a single super-photon if they are...
For the first time, scientists have shown that circular RNA is linked to brain function. When a RNA molecule called Cdr1as was deleted from the genome of mice, the animals had problems filtering out unnecessary information – like patients suffering from neuropsychiatric disorders.
While hundreds of circular RNAs (circRNAs) are abundant in mammalian brains, one big question has remained unanswered: What are they actually good for? In the...
An experimental small satellite has successfully collected and delivered data on a key measurement for predicting changes in Earth's climate.
The Radiometer Assessment using Vertically Aligned Nanotubes (RAVAN) CubeSat was launched into low-Earth orbit on Nov. 11, 2016, in order to test new...
A study led by scientists of the Max Planck Institute for the Structure and Dynamics of Matter (MPSD) at the Center for Free-Electron Laser Science in Hamburg presents evidence of the coexistence of superconductivity and “charge-density-waves” in compounds of the poorly-studied family of bismuthates. This observation opens up new perspectives for a deeper understanding of the phenomenon of high-temperature superconductivity, a topic which is at the core of condensed matter research since more than 30 years. The paper by Nicoletti et al has been published in the PNAS.
Since the beginning of the 20th century, superconductivity had been observed in some metals at temperatures only a few degrees above the absolute zero (minus...
16.08.2017 | Event News
04.08.2017 | Event News
26.07.2017 | Event News
22.08.2017 | Health and Medicine
22.08.2017 | Materials Sciences
22.08.2017 | Life Sciences