ATEX Power


ROSIT provides a range of ATEX certified power tools, including air, hydraulic, and electric options, designed for use in potentially explosive atmospheres. The selection includes ATEX classified pneumatic and hydraulic power tools such as saws, hacksaws, rotary hammer drill impact wrenches, portable bandsaws, nut runners, magnetic drills, and more.

Our extensive lineup of ATEX equipment adheres to the guidelines set forth by the ATEX directive, ensuring that the products meet high safety standards for use in Ex zones and hazardous environments. These top-quality safety power tools are suitable for various applications, from construction to underground mining, all while complying with ATEX certification requirements.

For further insights into ATEX certification, we invite you to read our ATEX white paper, "ATEX Certified Power Tools Ensure a High Level of Safety in Explosive Atmospheres."

To obtain more details about our ATEX certified power tools, please contact us at +49 69 6780 8096 to speak with one of our technical specialists.

Hazardous areas are divided into appropriate zones depending on the frequency and duration of the occurrence of a dangerous, explosive atmosphere. The system operator is responsible for determining the zone for operating the system. The manufacturer is responsible for determining the zone for the system. The system operator ultimately decides on the zoning.

Dust and gas explosion zones

The basis for the division into zones is the duration of the presence of the explosive atmosphere: the longer this is present, the more critical the zone becomes. A distinction is made between gas-ex zones and dust-ex zones: gas-ex zones are 0/1/2 and dust-ex zones are 20/21/22. In terms of classification, they are the same.

Zone 0/20: An explosive atmosphere occurs constantly, over long periods of time or frequently.
Zone 1/21: An explosive atmosphere occasionally occurs during normal operation .
Zone 2/22: An explosive atmosphere does not occur or occurs briefly during normal operation .

Device groups and categories

According to Directive 2014/34/EU (ATEX), the division into the following device groups and categories:
Device group I includes potentially explosive areas underground. The danger arises from mine gas and/or dust. This includes the categories M1 and M2:

The M1 category indicates a very high level of safety, even if two independent errors occur.

The M2 category demonstrates a high level of safety. The devices switch themselves off if explosive atmospheres occur.

Group Equipment Category Atmosphere Safety design Temp. (surface doesn't exceed)
Groupi M1 M2 G D C

T1 - 842°F/450°C

T2 - 572°F/300°C

T3 - 392°F/200°C

T4 - 275°F/135°C

T5 - 212°F/100°C

T6 - 185°F/85°C

mining applications a wery high level ofsafety a high level of safety Gases, vapors, mists Dust /

Device group II includes   potentially explosive areas above ground. The danger arises from liquids or gases. This includes device categories 1, 2 and 3:

Device category 1 indicates a very high level of security.
The level of protection is very high in the case of rare faults and when two independent faults occur.

Device category 2 indicates a high level of security.
The level of protection is high when an expected fault or error occurs.

Device category 3 indicates an increased level of security.
The level of protection is normal in normal operation.

Group Equipment Category Atmosphere Safety design Gas composition (only for Group||) Temp. (surface doesn't exceed)
Group || 1 2 3 G D C




T1 - 842°F/450°C

T2 - 572°F/300°C

T3 - 392°F/200°C

T4 - 275°F/135°C

T5 - 212°F/100°C

T6 - 185°F/85°C

above cround a very high levell ofsafety a hich lewel of safety an increased level ofsfcty Gases vapors. mists Dust /

Assignment of device categories to Ex zones

flammable medium Duration of thepresence of an explosive atmosphere Ex zone Explosion group Device category
Gases, vapors, mists (G) constantly. constantly Zone 0 || 1G
occasionally Zone 1 || 2G
rarely Zone 2 || 3G
Dust (D) constantly. constantly Zone 20 || 1D
occasionally Zone 21 || 2D
rarely Zone 22 || 3D


The classification of the hazard and the division into device categories means that different safety concepts come into play for the devices and systems used. The requirements can be found in the relevant standards. It is important that the processes and substances must be known in order to make the right choice and thus maintain the safety of people and the environment.