ER COLLETS

ER collets are designed and manufactured to offer maximum precision and reliability.
By using them, you improve the processing quality and precision of your machines considerably.

USE
OPTIONS

USE OF ER COLLETS

ER collets are used in the collet holders, tapping attachments or in quick-change chucks as well as in tool clamping.

A Outside diameter
L Total length
K Taper angle
F Shape
Article Ø A
[mm]
L
[mm]
K
[degree]
F
min. – max. [mm]
Rise
[mm]
ER8
E4004
8,5 13,6 8 1,0 – 5,0 0,5
ER11
E4008
11,3 18 8 1,0 – 7,0 0,5
ER16
E426
17 27,5 8 1,0 – 10,0 0,5
ER20
E428
21 31,5 8 1,0 – 13,0 0,5
ER25
E430
26 34 8 1,0 – 16,0 0,5
ER32
E470
33 40 8 2,0 – 20,0 0,5
ER40
E472
41 46 8 3,0 – 26,0 0,5

ER COLLET OPTIONS

We offer a wide range of options for ER collets. Whether you want to simplify your work, improve your production quality or satisfy a customer specific production requirement. Test the ER collets now, you will be convinced.

Overview

STANDARD-VERSION

  • Runout and repeatability are within 5µm
  • Clamping range of 0.5 – 1.0 mm possible

Click on the product image to get 360° view

SEALED

  • Are used for internal cooling for high-precision machining
  • Runout and repeatability are averaged at 3µm
  • Limited clamping range, only the nominal dimension can be clamped
  • Shafts with lateral flat surface can be used under certain circumstances, only the flat surface must be located behind the rubber seals in order to reach a complete sealing

Click on the product image to get 360° view

SEALED WITH JET HOLES

  • Are used for internal cooling for high-precision machining
  • Runout and repeatability are averaged at 3µm
  • Limited clamping range, only the nominal dimension can be clamped
  • The jet holes allows the coolant to reach the cutting tools without a coolant channel

Click on the product image to get 360° view

UP VERSION

  • Runout and repeatability are averaged at 3µm
  • Clamping range of 0.5 – 1.0 mm possible

Click on the product image to get 360° view