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CNC spindle machining is one of the oldest
CNC methods used for producing precision parts. Typical sizes for
the VFD controlled spindle motors vary from 3 HP to over 20 HP.
With the multitude of tool profiles and tool materials, the modern CNC
machining system can tackle almost any task.
The high frequency spindle motor is a
precision electric motor that is used to rotate the shaft (spindle) used
in machine tools for performing a wide range of machining tasks on a
variety of materials such as wood, stone, aluminum and plastics.
There are three common
methods used for cooling a spindle.
Fan Cooled: Fan cooled
spindles can operate at a duty cycle up to 70%.
Compressed Air Cooling:
These spindles require a constant flow of clean compressed air and can
operate up to a 90% duty cycle.
Liquid Cooling: These
spindles require a constant flow of chilled water and can operate at a
100% duty cycle.
CNC Machines International uses liquid
cooled spindles on all it's stone machining systems.
There are two common methods for holding
tools in a spindle.
Collet Clamped
Spindle: The collet clamping spindle uses a cone shaped sleeve
adjustable metal sleeve that is used to tightly grip a tool in the
spindle. This spindle requires the use of a hand tool to manually
change the cutting tool
ATC (Automatic Tool
Changer) Spindle: The ATC spindle uses industry standard tool holders to
hold the cutting tools and can greatly improve the productivity of a
spindle machining system. One of the tool holder standards is the ISO tool holder,
with sizes from ISO 15
to ISO 50.
CNC Machines International uses ISO 40 tool
holders on it's ATC spindle systems as standard with
other tool holder sizes available as an option. ATC spindle systems are
available from CNC Machines International in 7 HP and 15 HP configurations.
Typical Spindle
Machining Applications
Include:
Granite
Marble
Solid
Surface Materials
Wood
High
Density Foam Insulation
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