Products Catalog

HST High Speed Air Chucks feature a titanium chuck body and are actuated by a patented external wedge design that maintains clamping force at high spindle speeds without counterweights. This revolutionary design minimizes the effects of centrifugal force resulting in consistent clamping force throughout the chuck's rpm range.

HST chucks are available in standard, HS, and BP models. The HS models are dynamically balanced and feature MicroCentric's patented NR50 non-rotating air tube system. The NR50 design eliminates vibra tion caused by rotating air at higher spindle speeds, thus enhancing a machine's surface finish, and roundness capability.

Chuck Accuracy

.0001" (0.0025mm) TIR is standard
.00005" (0.0012mm) TIR is available

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Unit of Measure

Items	HST3-3 HST High Speed Air Chucks List Price QUOTE	HST-3/HS HST High Speed Air Chucks List Price QUOTE	HST4-3 HST High Speed Air Chucks List Price QUOTE	HST4-3/HS HST High Speed Air Chucks List Price QUOTE	HST6-3 HST High Speed Air Chucks List Price QUOTE
Chuck Size	N/A 3 in80 mm	N/A 3 in80 mm	N/A 4 in100 mm	N/A 4 in100 mm	N/A 6 in150 mm
No. of Jaws	N/A 3
Chuck Accuracy¹	N/A .0001 in.0025 mm
Jaw Stroke²	N/A .080 in2.0 mm	N/A .080 in2.0 mm	N/A .100 in2.5 mm	N/A .100 in2.5 mm	N/A .100 in2.5 mm
Max. Clamp Force	N/A 2,550 lbs11.3 kN	N/A 2,550 lbs11.3 kN	N/A 3,150 lbs14.0 kN	N/A 3,150 lbs14.0 kN	N/A 5,800 lbs25.8 kN
Max. Air Pressure	N/A 100 psi0.7 MPa
Chuck Weight	N/A 5.9 lb2.7 kg	N/A 5.9 lb2.7 kg	N/A 11.8 lb5.4 kg	N/A 11.8 lb5.4 kg	N/A 22.5 lb10.2 kg
A Dimension	N/A
B Dimension	N/A
C Dimension	N/A
D Dimension	N/A
E Dimension	N/A
F Dimension	N/A
G Dimension	N/A
H Dimension	N/A
J Dimension	N/A
K Dimension	N/A
Standard Equipment	N/A All HST High Speed Air Chucks include: One set steel top jaws
Item No.	N/A 03 003 303	N/A 03 003 304	N/A 03 004 302	N/A 03 004 304	N/A 03 006 303
¹ 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 ² Total jaw stroke (on diameter)