Tech Briefs Magazine - August 2023 - MD-10

the initial stage for those new to using it,
as precise motor positioning and alignment
of various components are necessary.
Additionally, precautions must be
taken due to the presence of strong
permanent magnets in the motor.
However, the setup and integration
time are consistently reduced as the process
becomes more reproducible with
experience gained by the customer's
staff. Direct drive motor vendors typically
offer training and high levels of
support to guide their customers
through the installation process.
Direct drive motors are often waLMG
linear motors are small-size motors optimized for high dynamic applications. They provide a high
peak-to-continuous force ratio. (Image: HEIDENHAIN)
ter-cooled, with liquid flowing across its
outer surface to dissipate heat. ETEL
has developed what it has dubbed a
" Close Cooling " sleeve that simplifies
installation by serving as a housing for
water, coming pre-fitted the motor with
just an input and output for liquid flow.
This eliminates the need for customers
to build their own cooling housing.
Looking at these factors together, the
total cost of ownership (TCO) of direct
drive motors is lower compared to competing
technologies. While there may be
some additional integration efforts involved
upfront, the financial downside is
outweighed by the lower running costs,
longer lifespan, and reduced maintenance
of direct drive motors.
TMB+ torque motors have a torque density increased by up to 20 percent, compared to the previous product
generation, while keeping the exact same footprint and reducing the power losses by up to 30 percent. They
are available with an optional cooling jacket. (Image: HEIDENHAIN)
10
Applications of Direct Drive Motors
Direct drive motors have applications
in various industrial and production
scenarios. ETEL caters to many machine
tool customers in industries such
as gear grinding, milling and boring,
among others. In these scenarios, where
heavy workpieces need to be moved or
rotated while being cut, the motor must
deliver high torque while maintaining
excellent precision.
Semiconductor manufacturing is another
demanding application that requires
motors with high precision, the
ability to achieve rapid acceleration and
accurate, repeatable positioning for super-fast
motions. The semiconductor industry
also upholds stringent quality
standards - necessitating consistent
and error-free operation.
More generally, across multiple industries,
ETEL's linear motors have been
used on some of the first Coordinated
Measuring Machines (CMMs) utilizing
direct drives. CMM's move a measuring
probe on an X-Y-Z plane to take meaMotion
Design, August 2023

Tech Briefs Magazine - August 2023

Table of Contents for the Digital Edition of Tech Briefs Magazine - August 2023

Tech Briefs Magazine - August 2023 - Intro
Tech Briefs Magazine - August 2023 - Sponsor
Tech Briefs Magazine - August 2023 - Cov1
Tech Briefs Magazine - August 2023 - Cov2
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Tech Briefs Magazine - August 2023 - Cov3
Tech Briefs Magazine - August 2023 - Cov4
Tech Briefs Magazine - August 2023 - MD-Cov1
Tech Briefs Magazine - August 2023 - MD-Cov2
Tech Briefs Magazine - August 2023 - MD-1
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Tech Briefs Magazine - August 2023 - MD-8
Tech Briefs Magazine - August 2023 - MD-9
Tech Briefs Magazine - August 2023 - MD-10
Tech Briefs Magazine - August 2023 - MD-11
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Tech Briefs Magazine - August 2023 - MD-Cov3
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