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All Categories > Precision Air Chucks > Precision Air Chuck Models > Large Diameter Air Chucks > Model 12-220-3  
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Model 12-220-3, Large Diameter Air Chucks



Large Diameter Air Chucks offer high accuracy and adjustable clamping force for machining large diameter precision and thin-walled workpieces. Large Diameter chucks are availalbe in three jaw as well as two and six jaw configurations. Large Diameter models with extended jaw stroke, air ports on OD of chuck body for stationary applications, and other special configurations are quoted upon request.

Chuck Accuracy

  • .0002" (0.005mm) TIR is standard
  • .0001" (0.0025mm) TIR is available




Unit of Measure: Imperial Metric Both

 Specifications   Options for MicroCentric Chucks   Standard Equipment   

Chuck Size

12 in
300
mm

No. of Jaws1

3

Chuck Accuracy2

.0002 in
.005
mm

Jaw Stroke3

.220 in
5.6
mm

Max. Clamp Force

13,125 lbs
58.4
kN

Max. Air Pressure

100 psi
0.7
MPa

Max. rpm4

2,250

Chuck Weight

110 lb
49.9
kg

A Dimension

11.950 in
303.5
mm

B Dimension

9.750 in
247.7
mm

C Dimension

1.188 in
30.2
mm

D Dimension

1.193 in
1.2
mm

E Dimension

4.000 in
101.6
mm

F Dimension

0.250 in
6.4
mm

G Dimension

0.561 in
14.2
mm

H Dimension

0.531 in
13.5
mm

J Dimension

0.781 in
19.8
mm

K Dimension

1.520 in
38.6
mm

L Dimension

10.500 in
266.7
mm

M Dimension

0.250 in
6.4
mm

N Dimension

M10

Item No.

01 122 301
1 2 jaw and 6 jaw configurations available for all air chuck sizes
2 Chuck accuracy is defined as the total indicator reading (maximum radial and lateral runout) of a master gage measured
3 Total jaw stroke (on diameter)
4 Max. rpm is influenced by air pressure and mass of top jaws


 MORE IMAGES 

·  Large Diameter Air Chucks dwg


 DOWNLOADS 

MicroCentric Air Chuck Catalog
(PDF, 637KB)

MicroCentric Air Chuck Manual
(PDF, 1374KB)

MicroCentric General Catalog
(PDF, 648KB)


MicroCentric Corp. | Precision Workholding Technology