
Certificate of Quality
- Chuck body fine balanced U < 1 gmm
- All functional surfaces fine machined
- Taper tolerance AT3
- Coolant supply form JD
Your current product selection:

Collet Chuck Type ER
JIS B 6339-2 · BT30
Certificate of Quality
- Chuck body fine balanced U < 1 gmm
- All functional surfaces fine machined
- Taper tolerance AT3
- Coolant supply form JD
Collet Chuck Type ER
JIS B 6339-2 · BT30
For clamping tools with cylindrical shank in ER collets according to ISO 15488.
JIS B 6339-2 BT30.
- Included in delivery: Locknut type HS (fine balanced, with slide coating for higher clamping forces)
- Enlarging of size L upon request
Technical data subjects to change without prior notice.
Technical drawing

Please select your clamping diameter:
Version | ER 11 |
---|---|
Ø D [mm] | 19 |
Clamping range [mm] | 0,5 - 7,0 |
L [mm] | 26,5 |
Order No. | Gage length A in mm | |||||
---|---|---|---|---|---|---|
30.525.11 | ![]() ultra short, 50.00 mm |
|
|
Accessory | ||
30.520.11 | ![]() short, 60.00 mm |
|
|
Accessory | ||
30.521.11 | ![]() long, 100.00 mm |
|
|
Accessory |
Version | ER 16 |
---|---|
Ø D [mm] | 28 |
Clamping range [mm] | 0,5 - 10,0 |
L [mm] | 32,5 |
Order No. | Gage length A in mm | |||||
---|---|---|---|---|---|---|
30.525.16 | ![]() ultra short, 50.00 mm |
|
|
Accessory | ||
30.520.16 | ![]() short, 60.00 mm |
|
|
Accessory | ||
30.523.16 | ![]() ZG80, 80.00 mm |
|
|
Accessory | ||
30.528.16 | ![]() ZG90, 90.00 mm |
|
|
Accessory | ||
30.521.16 | ![]() long, 100.00 mm |
|
|
Accessory |
Version | ER 20 |
---|---|
Ø D [mm] | 34 |
Clamping range [mm] | 1,5 - 13,0 |
L [mm] | 38,5 |
Order No. | Gage length A in mm | |||||
---|---|---|---|---|---|---|
30.525.20 | ![]() ultra short, 50.00 mm |
|
|
Accessory | ||
30.520.20 | ![]() short, 60.00 mm |
|
|
Accessory | ||
30.523.20 | ![]() ZG80, 80.00 mm |
|
|
Accessory | ||
30.528.20 | ![]() ZG90, 90.00 mm |
|
|
Accessory | ||
30.521.20 | ![]() long, 100.00 mm |
|
|
Accessory |
Version | ER 25 |
---|---|
Ø D [mm] | 42 |
Clamping range [mm] | 1,0 - 16,0 |
L [mm] | 41 |
Order No. | Gage length A in mm | |||||
---|---|---|---|---|---|---|
30.520.25 | ![]() short, 60.00 mm |
|
|
Accessory | ||
30.523.25 | ![]() ZG80, 80.00 mm |
|
|
Accessory | ||
30.528.25 | ![]() ZG90, 90.00 mm |
|
|
Accessory | ||
30.521.25 | ![]() long, 100.00 mm |
|
|
Accessory |
Version | ER 32 |
---|---|
Ø D [mm] | 50 |
Clamping range [mm] | 1,5 - 20,0 |
L [mm] | 52 |
Order No. | Gage length A in mm | |||||
---|---|---|---|---|---|---|
30.525.32 | ![]() ultra short, 60.00 mm |
|
|
Accessory |