The collet chuck is a small parts for cnc router machine, which is used to hold the router bits on the VFD spindle attachment. 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.
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
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