Products Catalog

Stationary air chucks are ideal for milling, drilling, tapping, and other applications requiring a compact self-contained workholding fixture. Air is supplied directly into the side of the chuck body, and the chuck can be mounted directly to the machine table or pallet. Through holes are available on all models.

Chuck Accuracy

.00005" (0.0012mm) TIR is standard
.00002" (0.0005mm) TIR is available

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Unit of Measure

Items	3-50NR12-3 Stationary Air Chucks	4-40NR19-3 Stationary Air Chucks	4-120NR19-3 Stationary Air Chucks	6-40NR-3 Stationary Air Chucks	6-40NR34-3 Stationary Air Chucks
Chuck Size	N/A 3 in80 mm	N/A 4 in100 mm	N/A 4 in100 mm	N/A 6 in150 mm	N/A 6 in150 mm
No. of Jaws¹	N/A 3
Chuck Accuracy²	N/A .00005 in.0012 mm
Jaw Stroke³	N/A .050 in1.3 mm	N/A .040 in1.0 mm	N/A .120 in3.0 mm	N/A .040 in1.0 mm	N/A .040 in1.0 mm
Max. Clamp Force	N/A 920 lbs4.1 kN	N/A	N/A 1,485 lbs6.6 kN	N/A	N/A
Max. Air Pressure	N/A 100 psi0.7 MPa	N/A 100 psi7.0 kg/cm²	N/A 100 psi0.7 MPa	N/A 100 psi7.0 kg/cm²	N/A 100 psi7.0 kg/cm²
Through Hole	N/A .475 in12 mm	N/A .750 in19.1 mm	N/A .750 in19.1 mm	N/A 1.000 in25.4 mm	N/A 1.330 in33.8 mm
Chuck Weight	N/A 3.0 lb1.4 kg	N/A 6 lb2.7 kg	N/A 6.8 lb3.1 kg	N/A 14 lb6.4 kg	N/A 13 lb5.7 kg
A Dimension	N/A	N/A	N/A	N/A 5.950 in151.1 mm	N/A 5.950 in151.1 mm
B Dimension	N/A	N/A	N/A	N/A 4.920 in125.0 mm	N/A 4.920 in125.0 mm
C Dimension	N/A	N/A	N/A	N/A 0.560 in14.2 mm	N/A 0.560 in14.2 mm
D Dimension	N/A	N/A	N/A	N/A 1.070 in27.2 mm	N/A 1.070 in27.2 mm
E Dimension	N/A	N/A	N/A	N/A 2.060 in52.3 mm	N/A 2.060 in52.3 mm
F Dimension	N/A	N/A	N/A	N/A 0.120 in3.0 mm	N/A 0.120 in3.0 mm
G Dimension	N/A	N/A	N/A	N/A 0.680 in17.3 mm	N/A 0.680 in17.3 mm
H Dimension	N/A	N/A	N/A	N/A 0.265 in6.7 mm	N/A 0.265 in6.7 mm
J Dimension	N/A	N/A	N/A	N/A 0.430 in10.9 mm	N/A 0.430 in10.9 mm
K Dimension	N/A	N/A	N/A	N/A 0.125 in3.2 mm	N/A 0.125 in3.2 mm
L Dimension	N/A	N/A	N/A	N/A M5	N/A M5
M Dimension	N/A	N/A	N/A	N/A 5.350 in135.9 mm	N/A 5.350 in135.9 mm
N Dimension	N/A	N/A	N/A	N/A 1/8 NPT	N/A 1/8 NPT
Standard Equipment	N/A All Stationary Air Chucks include: One set steel top jaws
Item No.	N/A 01 030 315	N/A 01 040 315	N/A 01 041 315	N/A	N/A 01 060 315
¹ 2 jaw configurations available for all air chuck sizes, 6 jaw configurations available on 10 inch (250 mm) models ² Chuck accuracy is defined as the total indicator reading (maximum radial and lateral runout) of a master gage measured 1.0" (25 mm) from the face of a standard top jaw ³ Total jaw stroke (on diameter)