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Air tube assemblies are used with all rotating
MicroCentric air chucks. The rotary air coupling
features a hardened steel journal and a maintenance
free oil-lite bearing.
Rotary air tubes include a blank
support bushing, air hoses and fittings. Length
to be specified when ordering. Contact our sales
department for assistance in determining the
correct length for your application.
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| Air
Tube |
Chucks Used with: |
| Model
30 |
3-50 |
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| Model
50 |
3-50C, 4 & 6 inch,
& HST models |
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| Model
82 |
8 to 16 inch models |
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| Air
Tube |
A |
B |
C |
D |
E |
F |
Max Speed |
| Model
30 |
.375" |
1.00" |
1.25" |
1.87" |
#10-32 UNF |
3/8"-32 UNF |
6,000 rpm |
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9.5mm |
25.4mm |
31.8mm |
47.5mm |
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| Model
50 |
.625" |
1.24" |
1.50" |
2.21" |
1/16"-27
NPT |
5/8"-32
UNF |
6,000 rpm |
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15.9mm |
31.5mm |
38.1mm |
56.1mm |
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| Model
82 |
1.00" |
2.50" |
2.75" |
4.85" |
1/4"-18
NPT |
1.0"-24
UNF |
4,000 rpm |
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25.4mm |
63.5mm |
69.9mm |
123.2mm |
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MicroCentric's patented NR50 air tube is used
with HST/HS chucks. This air tube couples to
a rotary air journal mounted in the ID HST/HS
chucks. The NR50 is a three passage design for
coolant through the spindle or automatic lubrication.
NR50 air tubes include air hoses
and fittings. A support bushing is required
to fix the tube to the rear of the machine spindle.
Contact our sales department for additional
information.
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HV operating valves are three position manually
operated pneumatic valves that direct air flow
to open and close MicroCentric air chucks.
Each HV valve includes air hoses
and fittings required for installation.
| Model |
Fitting
Size |
Max
Pressure |
Air
Tube Model |
| HV-10 |
1/8"-27 NPT |
150 psi |
Model 30 and 50 |
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12 kg/cm2 |
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| HV-20 |
1/4"-18
NPT |
150
psi |
Model
82 |
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12 kg/cm2 |
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The FRL-15 is a combination air filter/regulator/lubricator
unit that controls the air pressure to the chuck's
built-in cylinder, and provides lubrication to the
rotary air bearing assembly. This unit also filters
contaminants from the air supply. Water that accumulates
in the filter unit can be purged by a manual drain.
Each unit includes a pressure gage,
as well as air hoses and fittings.
| Model |
Fitting
Size |
Max
Pressure |
| FRL-15 |
1/4"-18 NPT |
150 psi |
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12 kg/cm2 |
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A rotary union is required to supply coolant through
the air tube assembly, or for the AL-Automatic Lubrication
option.
The rotary union threads into the rear of the air tube
and includes a hose and fittings.
| Model |
Fitting
Size |
Max
Pressure |
Max
Speed |
Air
Tube Model |
| RU-10 |
1/8"-27 NPT |
150 psi |
6,000 rpm |
Model 50 |
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12 kg/cm2 |
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| RU-20 |
1/4"-18
NPT |
150 psi
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4,000 rpm |
Model 82 |
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12 kg/cm2 |
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