SIEMENS
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Siemens D 83.1 · 2016
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Introduction
LOHER motors
Customized and industry-specific drive solutions in the process industry
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Application
The drive solutions with LOHER motors are matched to
application-specific requirements – however extreme the actual
location of use. The range comprises, in particular:
•
Explosion-proof drives of all common types of protection
•
Winch drives that stand unprotected on the deck of a ship
•
Subsea components for transporting mineral resources from
the deep sea
•
Drill drives for drilling tunnels or for underground coal mining
•
Vibration-proof, shock-resistant and earthquake-resistant
motors
•
Motors for deserts – specially designed for heat, dust and
sand storms
•
Low-temperature drives for drive tasks in polar climates
LOHER CHEMSTAR and LOHER VARIO
LOHER CHEMSTAR and LOHER VARIO motors cover all
common types of protection with power ratings ranging from
0.25 to 1400 kW. The standard degree of protection is IP55. The
range of degrees of protection, however, extends as far as IP66.
The enclosure is made of rugged cast-iron or steel.
Possible options include reinforced bearings and integrated
PTC thermistors. LOHER CHEMSTAR and LOHER VARIO motors
are supplied with industry-specific documentation, including
ATEX certificates for the chemical and petrochemical industries.
With motors of the LOHER CHEMSTAR series, there is often no
need for an anti-condensation heater even under conditions of
extremely high humidity. The motors operate reliably in a
temperature range from -55 to +70 °C, even in zones with dust
and gas. The motors can therefore also be used in desert and
polar regions. Versions with corrosion-resistant stainless steel
screws are available. Shaft seals in IP55 degree of protection are
available as standard and provide protection against water and
dust to ensure problem-free outdoor installation.
Versions in industry-specific design are possible, for example
with a high-quality, particularly chemical-resistant finish or
galvanized fan covers for corrosion protection in aggressive
atmospheres.
Special solutions exclusively for special cases
Subsea components
The subsea motors are developed especially for operation
on the ocean floor. They operate smoothly at depths of 1000 m.
They are used as drives for pumps, multi-phase pumps and
compressors and therefore play an important role in the optimum
exploitation of oil and gas fields.
Platform drives
Compliance with extremely stringent standards is necessary
here with regard to the requirements for the operation of drive
systems on drilling platforms. The platform motors satisfy the
requirements of these standards, both in general terms of
reliability, monitoring equipment and integration in platform-wide
monitoring systems, as well as in specific applications for
example with requirements such as ice protection for polar
regions. The platform motors generally feature a special offshore
paint finish for protection against salty sea air. Bolts and other
exposed parts are made of stainless steel.
© Siemens AG 2016