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Press release
30.11.2016  |  9931x
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More power in the same size

POWER LINE air motors are now ATEX conform

You need a motor to be light and small but with high torque! With the POWER LINE air motors the name says it all! The powerful air motors are distinguished by their unparalleled low performance weight. The required high torque is reached immediately after start-up. It is a motor, which not only shines in terms of economy: as well as the attractive price and fast delivery times, the POWER LINE motor is now available in the same size but with even more power. The foot and flange motors with robust cast-iron housing have a power range of 1.6 to 18 kW.

The product spectrum already consists of a number of standard motors. Now the POWER LINE program has been extended and the ATEX certified motors have been added: the sizes from 1.6 to 6 kW are accredited in accordance with directive 2014/34/EU from 26th February 2014 for use according to EX II 2 GD c IIC T3 (200°C).

In accordance with 2014/34/EU, machines in category 2 are designated for use in areas where a potentially explosive atmosphere consisting of gases, steam, smoke or a dust-air mixture is occasionally likely to arise. The machine-based explosion prevention measures in this category guarantee the required extent of safety even if there are frequent device errors or error statuses.

Air motors are already in themselves ideally designed for this type of application. The functional principle of an air vane motor is simple: The compressed air generated by the compressor begins motor rotation. The rotor begins to revolve in the eccentric cylinder. In its slots there are vanes which are pushed against the outside of the cylinder wall by centrifugal force. Working chambers are generated for the expanding compressed air. The expansion means that the compromised air changes the pressure energy into kinetic energy – resulting in the rotational movement. The expanded air cools down and it becomes really cold around the motor. Therefore, the risk of gasses becoming ignited by high temperatures is significantly reduced by using an air motor.

All new ATEX conform motors can be recognised by their type key: the conformity of the 68X-001F09/IEC71 is clearly indicated by the “X” in the type description.

As well as the ATEX certification, DEPRAG engineers have also further optimised the existing POWER LINE motors, this means: the same motor size is now even more efficient! The previous power range of all motors has been increased from 2.6 kW to 3.2 kW or from 3.6 kW to 5.0 kW and 6.0 kW.

Due to the high speeds of vane motors, gears are frequently required for speed regulation. With DEPRAG, machine builders are saved from the extensive design work and interface adjustment between gear and motor. The drives are equipped with a standardised IEC-flange connection such as that used for electric motors and standard gears. The IEC-flange enables the connection of varying ATEX conform standard gears. This may include planetary gears, spur gears, worm gears, bevel gears or other gear types.

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