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High Precision ER Spring Collet Chuck ER20 ER25 ER32 Spindle Collet
Product Name:
High Precision ER Spring Collet Chuck ER20 ER25 ER32 Spindle Collet
No. :
ER11,ER16,ER20,ER25,ER32,ER40 and more.
:
:

The collet chuck is a small parts for cnc router machine, which is used to hold the router bits on the VFD electric spindle motor. It has other name of spring collet or er collet or spindle collet chuck. Available model is ER11, ER16, ER20, ER25, ER32, and ER40. High precision ER spring collets chuck allows to reduce shakeness on the bits and motors, and achieve better finishing for the jobs. 
collet chuck
er spring collet chuck
spring collet chuck

Features of spring collet chuck

1) Material: 65Mn Steel

2) Hardness: HRC44-48

3) Standard: DIN6499B

4) Precision: 0.005mm 0.008mm

5) High durability

Available clamping range of ER collets

Collet Model

Outer Dia

Clamping Range mm

ER11

11

3.175,4,5,6,6.35

ER16

16

3.175,4,5,6,6.35,7,8,9,10

ER20

20

3.175,4,5,6,6.35,7,8,9,10,11,12

ER25

25

3.175,4,5,6,6.35,7,8,9,10,11,12,12.7,13,14,15,16

ER32

32

3.175,4,5,6,6.35,7,8,9,10,11,12,12.7,13,14,15,16,17,18,19,20

ER40

40

3.175,4,5,6,6.35,7,8,9,10,11,12,12.7,13,14,15,16,17,18,19,20,22,24,26

 

Tips:

1) Diameter of cnc bits’ shank and clamping diameter of ER spring collet should be accordant.

2) ER collet and ER nut should be accordant.

3) ER nut and spindle should be accordant.

 

Mounting diagram of ER collet and nut
er collets assembly

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