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Field of application
The device simulates various chewing movements in the mouth for
materials testing of implants, bridges, crowns, composite material
and jaw models:
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Execution of complete chewing cycles by means of 2-axis motion |
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Simulation of
Bruxism |
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The
defined sliding of two teeth against each other
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Simulation of the striking of two teeth against each other at
various speeds and intensities of force |
The CS-4 device is based on WILLYTEC technology which is known and
well-proven across the world, but which could be further improved
and adapted to our customers' wishes as regards key details:
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Kinematics: particularly precise motion through
the use of digital servo drives |
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Significantly
reduced noise when running, so can be used without problems in
laboratories |
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2-axis operation reduces test times by up to 20% by
means of simultaneous reverse motion along both axes |
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Devices available which have identical specifications
but 2 or 4 specimen
chambers. This gives significant price advantages for users
with smaller specimen volumes |
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Various specimen holders, antagonists and special test
rigs are available |
Functional principle
An antagonist strikes a specimen in accordance with
defined parameters. The loading force is produced directly by
precise weights, and is transferred to the specimens. The same
load values operate in all the chambers. The use of a modern
motion controller allows a whole variety of motion patterns to be
programmed. This initially enables the user to programme freely
definable movements in both axes using the application software
which is included.
This allows for example the antagonist to be set to strike
at minimal speed so as to reduce to a minimum the forces
transferred to the specimens.
The weights are freely mounted on a cross member which
is raised or lowered by means of a servo motor. The cross member
connects all the weights together so that the kinematics are
identical for all antagonists, with the aim of producing
comparable results. As a result of the free mounting of the
weights, at the moment when the antagonist strikes the specimen
only the force of the weights operates - without any losses and
clearly defined. This allows a particularly precise and realistic
simulation of the chewing process.
The strike speed is adjustable in such a way that a
defined momentum which culminates in a defined peak force is fed
into the specimen.
The chewing simulation in line with this procedure
constitutes a standard which is applied on a worldwide basis in
universities, dental clinics and by manufacturers.
Chief advantages
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WILLYTEC technology recognised and proven on a
worldwide basis. |
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Continuous operation is possible for long duration
trials due to the robust construction and use of high-quality
components. |
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High degree of reproducibility of the results: the
construction used ensures identical kinematic conditions in
each specimen chamber |
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Excellent kinematics due to directly linked servo
motors in both axes |
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Can be used in all situations, and the specimen
chambers can be used either with or without water fill. |
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Various designs available (2, 4 or 8 tests chambers,
thermo-cycling, force measuring system) |
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Especially compact construction with a high level of
rigidity |
Technical Information
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Operation at 110V~
or 230V~ at 50/60 Hz, max.
500W |
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Precise weights (accurate to within 0.1%) for each
specimen chamber |
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Recording and display of all relevant parameters |
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Specimen holders and antagonists are compatible with
the WILLYTEC system
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Control system via integrated PC with connections for
keyboard, mouse and monitor; USB connection for updates |
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