Cat. V-Flange Shank Encapsulated Balanced
ER Collet Chuck





These encapsulated chucks can increase productivity up to 70% due to the cantilevered beam’s closeness to the spindle bearings reducing deflection, which improves T.I.R. The deflection under load is proportional to the cube of its length, underlining the importance of minimizing the overhang. Generally, the greater the rigidity of a tool holder, the greater its damping capacity, dynamic stiffness and integrity. Chatter, relative vibratory motion, occurs when the relative dynamic stiffness at the cutting edge is insufficient to perform the cutting operation; consequently, the chip thickness varies causing variances in the magnitude of the cutting force. The tool shank or bar, being elastic, causes deflection and begins to vibrate. In metal removal operations, vibration is the most common cause of unsatisfactory accuracy, finish and poor tool performance. The less deflection (causing less run out) under load enhances metal removal rates, increases productivity and reduces cycle times for a substantial reduction in cost per part.

The increased wall thickness, i.e. more cross-sectional area, at the flange face (I.D. thread) than standard ER nose (O.D. thread) holders, allows for greater gripping power to expand its application range (more cubic inches of metal removal).

The T.I.R. has been measured at (.000 05) and no greater than (.0002) at the nose verses (.0004 to .000 55) of the O.D. ER nose thread-type tool holders. Guaranteed maximum concentricity between the O.D. and I.D. is no greater than (.000 12).

All these holders are balanced to G2.5 @ 20,000 RPM.
Available soon with 100TG Collet Cavity!

CAT. SHANK

 Cat. No.

Collet

Series

 L

 L1

 D

 J

 G

 G1

CV40ER32E

ER32

1.124

.374

1.574

5/8 X 11UNC

5/8-11

M40 X 1.5

CV40ER40E

ER40

2.124

.374

1.968

5/8 X 11UNC

5/8-11

M50 X 1.5

CV50ER32E

ER32

1.124

.374

1.574

M22 X 1.5

1-8

M40 X 1.5

CV50ER40E

ER40

2.124

.374

1.968

M28 X 1.5

1-8

M50 X 1.5


BT SHANK

 Cat. No.

Collet

Series

 L

 L1

 D

 J

 G

 G1

BT40ER32E

ER32

1.437

.374

1.574

M16

M16

M40 X 1.5

BT40ER40E

ER40

1.830

.374

1.968

M16

M16

M50 X 1.5

BT50ER32E

ER32

1.437

.374

1.574

M22 X 1.5

M24

M40 X 1.5

BT50ER40E

ER40

1.830

.374

1.968

M28 X 1.5

M24

M50 X 1.5