BT40 Shrink Fit Chuck Power Shrink Chuck

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 JD/JF
Cool Jet, can be sealed

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BT40 Shrink Fit Chuck Power Shrink Chuck

Power Shrink Chuck with Safe-Lock™
JIS B 6339-2 · BT40

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 JD/JF
Cool Jet, can be sealed

Power Shrink Chuck with Safe-Lock™
JIS B 6339-2 · BT40

Shrink fit chuck suitable to all inductive shrink fit units.

The Power Shrink Chuck is the shrink fit chuck for highest machining capacity in high-speed manufacturing. The optimized design combines high rigidity with dampening vibrations, therefore giving more protection to machines, spindles and tools.

Increased machining capacity due to higher spindle speed, higher feed and larger cutting depth
Shorter processing times
Higher machining accuracy
With threaded holes in order to balance with balancing screws
Cool Jet bores that can be sealed included
Optional: Cooling with Cool Flash for an extra charge
Safe-Lock™ pull out protection included

The long versions (A = 130 and 160 mm) with slim tips are especially versatile to use.

High rigidity
Slim at the tip
Dampen vibrations
High clamping force
Equally suited to high-speed manufacturing and heavy milling
Universal usage, saves space in tool magazine

Technical data subjects to change without prior notice.

Features Power Shrink Chuck

The most important features:

1. High runout accuracy (< 0.003 mm)
2. Low tendency towards vibrations by optimised outer geometry
3. Slim design at the top
4. Very rigid shank
5. Standard with Cool Jet (can be re-sealed)
6. Dirt groove in the clamping bore for safe clamping force
7. Safe-Lock™ (optional)

Features Power Shrink Chuck

The most important features:

1. High runout accuracy (< 0.003 mm)
2. Low tendency towards vibrations by optimised outer geometry
3. Slim design at the top
4. Very rigid shank
5. Standard with Cool Jet (can be re-sealed)
6. Dirt groove in the clamping bore for safe clamping force
7. Safe-Lock™ (optional)

Safe-Lock™ for Shrink Fit Chucks

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™ for Shrink Fit Chucks

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 for Shrink Fit Chucks

Cool Jet

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 for Shrink Fit Chucks

Cool Jet

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 Flash

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 6 - 25 mm

Cool Flash

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 6 - 25 mm

Machining example Power Shrink Chuck vs. Standard Shrink Cuck

Machining example Power Shrink Cuck

Milling - Ø: 16 mm; n = 13.000 1/min, Feed rate: vf = 5,2 m/min
Right: Power Shrink Chuck (Length: A = 160 mm, cutting depth: ap = 3,6 mm)
Left: Standard Shrink Chuck (Length: A = 160 mm; Cutting depth: ap = 1,8 mm)

Machining example Power Shrink Chuck vs. Standard Shrink Cuck

Machining example Power Shrink Cuck

Milling - Ø: 16 mm; n = 13.000 1/min, Feed rate: vf = 5,2 m/min
Right: Power Shrink Chuck (Length: A = 160 mm, cutting depth: ap = 3,6 mm)
Left: Standard Shrink Chuck (Length: A = 160 mm; Cutting depth: ap = 1,8 mm)

BT40 Shrink Fit Chuck Power Shrink Chuck Technical Drawing

Clamping Ø D1 [mm]	6
Ø D2 [mm] ultra short	22
Ø D2 [mm]	21
Ø D3 [mm] ultrashort	-
Ø D3 [mm]	50
L [mm] ultra short	36
L [mm]	36

Order No.

Gage length A in mm

40.645.06.37

ultra short, 70.00 mm

DXF

Step

40.644.06.37

ZG130, 130.00 mm

DXF

Step

40.642.06.37

oversize, 160.00 mm

DXF

Step

Clamping Ø D1 [mm]	8
Ø D2 [mm] ultra short	22
Ø D2 [mm]	21
Ø D3 [mm] ultra short	-
Ø D3 [mm]	50
L [mm] ultra short	36
L [mm]	36

Order No.

Gage length A in mm

40.645.08.37

ultra short, 70.00 mm

DXF

Step

40.642.08.37

oversize, 160.00 mm

DXF

Step

40.644.08.37

ZG130, 130.00 mm

DXF

Step

Clamping Ø D1 [mm]	10
Ø D2 [mm] ultra short	26,5
Ø D2 [mm]	24
Ø D3 [mm] ultra short	-
Ø D3 [mm]	50
L [mm] ultra short	42
L [mm]	42

Order No.

Gage length A in mm

40.645.10.37

ultra short, 70.00 mm

DXF

Step

40.644.10.37

ZG130, 130.00 mm

DXF

Step

40.642.10.37

oversize, 160.00 mm

DXF

Step

Clamping Ø D1 [mm]	12
Ø D2 [mm] ultra short	26,5
Ø D2 [mm]	24
Ø D3 [mm] ultra short	-
Ø D3 [mm]	50
L [mm] ultra short	47
L [mm]	47

Order No.

Gage length A in mm

40.645.12.37

ultra short, 70.00 mm

DXF

Step

40.644.12.37

ZG130, 130.00 mm

DXF

Step

40.642.12.37

oversize, 160.00 mm

DXF

Step

Clamping Ø D1 [mm]	14
Ø D2 [mm] ultra short	29,5
Ø D2 [mm]	27
Ø D3 [mm] ultra short	-
Ø D3 [mm]	50
L [mm] ultra short	47
L [mm]	47

Order No.

Gage length A in mm

40.645.14.37

ultra short, 75.00 mm

DXF

Step

40.644.14.37

ZG130, 130.00 mm

DXF

Step

40.642.14.37

oversize, 160.00 mm

DXF

Step

Clamping Ø D1 [mm]	16
Ø D2 [mm] ultra short	29,5
Ø D2 [mm]	27
Ø D3 [mm] ultra short	-
Ø D3 [mm]	50
L [mm] ultra short	50
L [mm]	50

Order No.

Gage length A in mm

40.645.16.37

ultra short, 75.00 mm

DXF

Step

40.644.16.37

ZG130, 130.00 mm

DXF

Step

40.642.16.37

oversize, 160.00 mm

DXF

Step

Clamping Ø D1 [mm]	18
Ø D2 [mm] ultra short	35,5
Ø D2 [mm]	33
Ø D3 [mm] ultra short	-
Ø D3 [mm]	50
L [mm] ultra short	50
L [mm]	50

Order No.

Gage length A in mm

40.645.18.37

ultra short, 75.00 mm

DXF

Step

40.644.18.37

ZG130, 130.00 mm

DXF

Step

40.642.18.37

oversize, 160.00 mm

DXF

Step

Clamping Ø D1 [mm]	20
Ø D2 [mm] ultra short	35,5
Ø D2 [mm]	33
Ø D3 [mm] ultra short	-
Ø D3 [mm]	50
L [mm] ultra short	52
L [mm]	52

Order No.

Gage length A in mm

40.645.20.37

ultra short, 75.00 mm

DXF

Step

40.644.20.37

ZG130, 130.00 mm

DXF

Step

40.642.20.37

oversize, 160.00 mm

DXF

Step

Clamping Ø D1 [mm]	25
Ø D2 [mm] ultra short	45,5
Ø D3 [mm] ultra short	-
L [mm] ultra short	58

Order No.

Gage length A in mm

40.645.25.37

ultra short, 85.00 mm

DXF

Step

Clamping Ø D1 [mm]	32
Ø D2 [mm] ultra short	45,5
Ø D3 [mm] ultra short	-
L [mm] ultra short	58

Order No.

Gage length A in mm

40.645.32.37

ultra short, 85.00 mm

DXF

Step

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