Certificate of Quality
- Chuck body fine balanced G2.5 at 25.000 rpm or U < 1 gmm
- All functional surfaces fine machined
- Taper tolerance AT3
- Coolant supply form AD/AF
Your current product selection:
Shrink Fit Chuck Standard Version with Safe-Lock™
DIN ISO 7388-1 SK40 (formerly DIN 69871)
Certificate of Quality
- Chuck body fine balanced G2.5 at 25.000 rpm or U < 1 gmm
- All functional surfaces fine machined
- Taper tolerance AT3
- Coolant supply form AD/AF
Shrink Fit Chuck Standard Version with Safe-Lock™
DIN ISO 7388-1 SK40 (formerly DIN 69871)
Shrink fit chuck suitable to all kind of shrink fit units.
With steep taper SK40 form AD/AF DIN ISO 7388-1 (formerly DIN 69871).
Form AD/AF means: Central coolant supply and coolant channels through the flange which can be sealed again.
- Heat resistant hot-working steel
- Hardened 54 – 2 HRC
- For HSS and solid carbide tools
- Shank tolerance h6
- With threaded holes in order to balance with balancing screws
- Cooling with Cool Jet for an extra charge
- Cooling with Cool Flash for an extra charge
- Safe-Lock™ pull out protection included
- Included in delivery: Backup screw, tension spring
Technical data subjects to change without prior notice.
Standard-Ausführung, ähnlich DIN 69882-8.
The most important features:
- 1. High runout accuracy (< 3 μm)
- 2. Extreme clamping torque by high pressing in the clamping bore
- 3. Short chamfer
- 4. Dynamic form: Reinforced shank at long tool holders. Compromise between slimness (marginal interference contour) and rigidity
- 5. Cool Jet (on request)
- 6. Threaded bores for simple and fast balancing with screws
The most important features:
- 1. High runout accuracy (< 3 μm)
- 2. Extreme clamping torque by high pressing in the clamping bore
- 3. Short chamfer
- 4. Dynamic form: Reinforced shank at long tool holders. Compromise between slimness (marginal interference contour) and rigidity
- 5. Cool Jet (on request)
- 6. Threaded bores for simple and fast balancing with screws
Safe-Lock™ pull out protection
- Highly accurate clamping due to shrink fit technology
- High torque due to form closed clamping
- No loss of accuracy
- No pull out and no spinning ot the tool
- Groove on tool shank is directed so that the tool will be pulled into the chuck (depending on direction of rotation)
Safe-Lock™ pull out protection
- Highly accurate clamping due to shrink fit technology
- High torque due to form closed clamping
- No loss of accuracy
- No pull out and no spinning ot the tool
- Groove on tool shank is directed so that the tool will be pulled into the chuck (depending on direction of rotation)
Cool Jet (optional)
- Optimized coolant bores, aimed at center
- Coolant directly to the cutting edge
- Extended tool life up to 100%
- Higher reliability of cutting process
- No more balls of chips on tool
- Cool Jet starting from shank diameter 1/4" (6 mm)
Cool Jet (optional)
- Optimized coolant bores, aimed at center
- Coolant directly to the cutting edge
- Extended tool life up to 100%
- Higher reliability of cutting process
- No more balls of chips on tool
- Cool Jet starting from shank diameter 1/4" (6 mm)
Cool Flash (optional)
- Optimized coolant bores with coolant outlet through slots
- Coolant directly to the cutting edge
- Extended tool life up to 100%
- No more balls of chips on tool
- Optimized runout accuracy! No additional unbalance! No disturbing clearance!
- Cool Flash available for shank diameter 1/4" (6 mm) - 1 1/4" (25 mm)
Cool Flash (optional)
- Optimized coolant bores with coolant outlet through slots
- Coolant directly to the cutting edge
- Extended tool life up to 100%
- No more balls of chips on tool
- Optimized runout accuracy! No additional unbalance! No disturbing clearance!
- Cool Flash available for shank diameter 1/4" (6 mm) - 1 1/4" (25 mm)
Technical drawing
Please select your clamping diameter:
| Clamping Ø D1 [mm] | 6 |
|---|---|
| Ø D2 [mm] | 21 |
| Ø D3 [mm] | 27 |
| L [mm] | 36 |
| Order No. | Gage length A in mm | |||||
|---|---|---|---|---|---|---|
| 40.440.06.7 |  short, 80.00 mm |
|
|
Accessory |
| Clamping Ø D1 [mm] | 8 |
|---|---|
| Ø D2 [mm] | 21 |
| Ø D3 [mm] | 27 |
| L [mm] | 36 |
| Order No. | Gage length A in mm | |||||
|---|---|---|---|---|---|---|
| 40.440.18.7 |  short, 80.00 mm |
|
|
Accessory |
| Clamping Ø D1 [mm] | 10 |
|---|---|
| Ø D2 [mm] | 24 |
| Ø D3 [mm] | 32 |
| L [mm] | 42 |
| Order No. | Gage length A in mm | |||||
|---|---|---|---|---|---|---|
| 40.440.10.7 |  short, 80.00 mm |
|
|
Accessory |
| Clamping Ø D1 [mm] | 12 |
|---|---|
| Ø D2 [mm] | 24 |
| Ø D3 [mm] | 32 |
| L [mm] | 47 |
| Order No. | Gage length A in mm | |||||
|---|---|---|---|---|---|---|
| 40.440.12.7 |  short, 80.00 mm |
|
|
Accessory |
| Clamping Ø D1 [mm] | 14 |
|---|---|
| Ø D2 [mm] | 27 |
| Ø D3 [mm] | 34 |
| L [mm] | 47 |
| Order No. | Gage length A in mm | |||||
|---|---|---|---|---|---|---|
| 40.440.14.7 |  short, 80.00 mm |
|
|
Accessory |
| Clamping Ø D1 [mm] | 16 |
|---|---|
| Ø D2 [mm] | 27 |
| Ø D3 [mm] | 34 |
| L [mm] | 50 |
| Order No. | Gage length A in mm | |||||
|---|---|---|---|---|---|---|
| 40.440.16.7 |  short, 80.00 mm |
|
|
Accessory |
| Clamping Ø D1 [mm] | 18 |
|---|---|
| Ø D2 [mm] | 33 |
| Ø D3 [mm] | 42 |
| L [mm] | 50 |
| Order No. | Gage length A in mm | |||||
|---|---|---|---|---|---|---|
| 40.440.18.7 | short, 80.00 mm |
|
|
Accessory |
| Clamping Ø D1 [mm] | 20 |
|---|---|
| Ø D2 [mm] | 33 |
| Ø D3 [mm] | 42 |
| L [mm] | 52 |
| Order No. | Gage length A in mm | |||||
|---|---|---|---|---|---|---|
| 40.440.20.7 |  short, 80.00 mm |
|
|
Accessory |
| Clamping Ø D1 [mm] | 25 |
|---|---|
| Ø D2 [mm] | 44 |
| Ø D3 [mm] | 53 |
| L [mm] | 58 |
| Order No. | Gage length A in mm | |||||
|---|---|---|---|---|---|---|
| 40.440.25.7 |  short, 100.00 mm |
|
|
Accessory |
| Clamping Ø D1 [mm] | 32 |
|---|---|
| Ø D2 [mm] | 44 |
| Ø D3 [mm] | 53 |
| L [mm] | 58 |
| Order No. | Gage length A in mm | |||||
|---|---|---|---|---|---|---|
| 40.440.32.7 |  short, 100.00 mm |
|
|
Accessory |
