Diaphragm Type High Precision Air Chuck

Diaphragm Type High Precision Air Chuck

PIONEER Diaphragm Chuck is to clamp the workpiece as soft as possible, and evenly, to avoid the deformation when clamping by utilizing the tensile strength of special material used for diaphragm. Naturally, the highest possible accuracy is obtainable in turning. Up to 12,000min-1 operation is possible due to the unique design which reduce the affection of centrifugal force. Super high precision and performance in turning is ensured.

  • Size:3” to 6”
  • Repeatability:Within 0.4μm
  • Maintenance Free (No lubrication necessary)
  • Std. Rotary Type / Quick Change Type

Model No./Dimension/Spec.

Dimensions & Specification

*8 and 6 following HN or WZ means the number of seats where the jaw is mounted on, and naturally the type of jaw to be used with.

Model No. A B E I J PCD
M
PCD
N
N Speed Chucking cap. T.I.R. Wgt.kg
3HN6-3 82 60 55 36 25 70 30.5 6-M4 12,000min-1 2.0mm~
40.0mm
≦0.4μm 1.7
3HN8-3 82 60 55 36 25 70 30.5 8-M4 12,000min-1 2.0mm~
40.0mm
≦0.4μm 1.7
4HN6-3 100 82.55 55 48 32 88.9 40 6-M5 12,000min-1 2.0mm~
60.0mm
≦0.4μm 2.6
4HN8-3 100 82.55 55 48 32 88.9 40 8-M5 12,000min-1 2.0mm~
60.0mm
≦0.4μm 2.6
4/5HN8-3 100 82.55 55 60 44 88.9 52 8-M5 10,000min-1 2.0mm~
60.0mm
≦0.4μm 2.6
6HN8-3 150 124.97 68 80 60 135.8 70 8-M6 8,000min-1 3.0mm~
90.0mm
≦0.4μm 7.1
6/8HN8-3 150 124.97 68 102 77 135.8 90 16-M6 8,000min-1 3.0mm~
90.0mm
≦0.4μm 7.1
4/5WZ6-
2-2B
100 82.55 53 60 44 88.9 52 2X6-M5 8,000min-1 2.0mm~
60.0mm
≦0.4μm 2.3
5WZ8-3 126 101.6 58 60 44 114.3 52 8-M5 8,000min-1 3.0mm~
70.0mm
≦0.4μm 3.8
WZシリーズ

Quick Change System

Chuck can be changed without dismounting the ASA.
Changeover time is drastically reduced, and machine’s down time is also significantly reduced.

クイックチェンジシステム

Dimensions & Specification

Refer to the equivalent model for the spec. of mounting bolt etc.

Model No. F Wgt.kg
3HN6-3-QTN 82 60 45 36 25 2.2
3HN8-3-QTN 82 60 45 36 25 2.2
4HN6-3-Q 100 82.55 55 48 32 2.6
4HN8-3-Q 100 82.55 55 48 32 2.6
4/5HN8-3-Q 100 82.55 55 60 44 2.6
4HN8/14-3-Q 100 82.55 55 48 32 2.5
New Triple Piston
4HN8-3-QT 100 82.55 58 52 32 2.9
6HN8-3-Q 150 124.97 68 80 60 7.1
6/8HN8-3-Q 150 124.97 68 102 77 7.1
6/8HN8/30-3-Q 150 124.97 68 102 77 6.8

8 or 6 after Hn signify the number of seats where the jaw is mounted on, i.e., the number of slits of jaw to be used with DC.
Triple piston …… has the equivalent repeatability to double piston type, and 1.4 times in gripping power.


Jaw/Form Machining

How to order std. blank jaw

※Std. blank jaw is made of die steel pre-hardened to HRC40.
Other material and hardness can be used, but, it is suggested to be consulted for the propriety to the application.
Hardened to HRC55-60 jaw is available.

Outline Drawing of Std. Jaws

Dimensions of Std. Jaw

ChuckJaw TypeA TypeB
φA ℓ1 φB ℓ2
3HN 40 23 30 22 23 30
4HN 52 23 30 28 23 30
5WZ 4/5HN 63 25 30 40 25 30
6HN 82 25 30 50 25 30
6/8HN 110 25 30

Other sizes available on request as option.

Type A is basically for OD clamping, and Type B is for ID clamping.
The selection of A or B depends on how fast and efficiently it can be form-machined to the required shape.

Type of Jaw