Version: 18/10/2016
Filename: NA-MHF-22-COD-E_version3.doc
© Meyrat SA 2017
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5 Description of the product
5.1 Operation
The electric spindle is constructed as follows:
The synchronous motor drives the shaft of the spindle. The rotation speed is continuously regulated by
the frequency converter.
The shaft of the spindle is guided in the sleeve by two bearings stages. The bearings are lubricated
with grease or air-oil, according to the construction of the spindle.
The hybrid bearings of an air-oil spindle are lubricated with oil and compressed air. The lubricant is
directed at the surface of the ball bearings.
The oil reflux system expels the excess oil from the inside of the spindle. This reflux does not exist on
spindles lubricated with grease.
The air screen and special labyrinth system prevents the infiltration of impurities into the bearings.
!
ATTENTION!
Without overpressure, the protection of spindle against the intrusion of
foreign bodies is not guaranteed. The intrusion of foreign bodies can destroy the spindle.
The tool clamping system is integrated in the shaft and is equipped with an ER8-UP tool attachment
clamp. The tools are secured with an ER8MS clamping nut.
5.2 Field of application
The electric spindle is used for:
High speed machining of materials such as: aluminium, cast iron, steel, brass, titanium, plastic
materials, composites, graphite and wood.
5.3 Scope of standard delivery
The scope of standard delivery includes:
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The spindle
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The assembly instructions
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The frequency converter
5.4 Dangerous parts and safety features
List of dangerous parts
The spindle contains the following dangerous parts:
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The rotating part of the spindle and the tool
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The interface between the spindle and the securing clamp.
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Electrical connections.
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Pneumatic connections.
