BT50 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 ADB
  • Cool Jet, can be sealed

Power Shrink Chuck with Safe-Lock™
JIS B 6339 · BT50

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
  • Quieter running, therefore better surface quality and protection of tools, spindles and machines
  • Higher machining accuracy
  • With threaded holes in order to balance with balancing screws
  • Cool Jet bores that can be sealed included
  • Cooling with Cool Flash for an extra charge
  • Safe-Lock™ pull out protection included

The long versions (A = 160 and 200 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)
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 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)

Technical drawing

BT50 Shrink Fit Chuck Power Shrink Chuck Technical Drawing

Please select your clamping diameter:

Clamping Ø D1 [mm] 6
Ø D2 [mm] short21
Ø D2 [mm]21
Ø D3 [mm] short70
Ø D3 [mm]83
L [mm]36
Order No. Gage length A in mm    
50.640.06.37
BT50  Shrink Fit Chuck Power Shrink Chuck short Pictogram
short, 100.00 mm
DXF
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50.642.06.37
BT50  Shrink Fit Chuck Power Shrink Chuck oversize Pictogram
oversize, 160.00 mm
DXF
Step
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50.646.06.37
BT50  Shrink Fit Chuck Power Shrink Chuck ZG200 Pictogram
ZG200, 200.00 mm
DXF
Step
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Clamping Ø D1 [mm] 8
Ø D2 [mm] short21
Ø D2 [mm]21
Ø D3 [mm] short70
Ø D3 [mm]83
L [mm]36
Order No. Gage length A in mm    
50.640.08.37
BT50  Shrink Fit Chuck Power Shrink Chuck short Pictogram
short, 100.00 mm
DXF
Step
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50.642.08.37
BT50  Shrink Fit Chuck Power Shrink Chuck oversize Pictogram
oversize, 160.00 mm
DXF
Step
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50.646.08.37
BT50  Shrink Fit Chuck Power Shrink Chuck ZG200 Pictogram
ZG200, 200.00 mm
DXF
Step
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Clamping Ø D1 [mm] 10
Ø D2 [mm] short27
Ø D2 [mm]27
Ø D3 [mm] short55
Ø D3 [mm]83
L [mm]42
Order No. Gage length A in mm    
50.640.10.37
BT50  Shrink Fit Chuck Power Shrink Chuck short Pictogram
short, 100.00 mm
DXF
Step
Add item to wishlist Add item to wishlist Item already on wishlist
50.642.10.37
BT50  Shrink Fit Chuck Power Shrink Chuck oversize Pictogram
oversize, 160.00 mm
DXF
Step
Add item to wishlist Add item to wishlist Item already on wishlist
50.646.10.37
BT50  Shrink Fit Chuck Power Shrink Chuck ZG200 Pictogram
ZG200, 200.00 mm
DXF
Step
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Clamping Ø D1 [mm] 12
Ø D2 [mm] short27
Ø D2 [mm]27
Ø D3 [mm] short55
Ø D3 [mm]83
L [mm]47
Order No. Gage length A in mm    
50.640.12.37
BT50  Shrink Fit Chuck Power Shrink Chuck short Pictogram
short, 100.00 mm
DXF
Step
Add item to wishlist Add item to wishlist Item already on wishlist
50.642.12.37
BT50  Shrink Fit Chuck Power Shrink Chuck oversize Pictogram
oversize, 160.00 mm
DXF
Step
Add item to wishlist Add item to wishlist Item already on wishlist
50.646.12.37
BT50  Shrink Fit Chuck Power Shrink Chuck ZG200 Pictogram
ZG200, 200.00 mm
DXF
Step
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Clamping Ø D1 [mm] 14
Ø D2 [mm] short33,3
Ø D2 [mm]33
Ø D3 [mm] short-
Ø D3 [mm]83
L [mm]47
Order No. Gage length A in mm    
50.640.14.37
BT50  Shrink Fit Chuck Power Shrink Chuck short Pictogram
short, 100.00 mm
DXF
Step
Add item to wishlist Add item to wishlist Item already on wishlist
50.642.14.37
BT50  Shrink Fit Chuck Power Shrink Chuck oversize Pictogram
oversize, 160.00 mm
DXF
Step
Add item to wishlist Add item to wishlist Item already on wishlist
50.646.14.37
BT50  Shrink Fit Chuck Power Shrink Chuck ZG200 Pictogram
ZG200, 200.00 mm
DXF
Step
Add item to wishlist Add item to wishlist Item already on wishlist
Clamping Ø D1 [mm] 16
Ø D2 [mm] short33,3
Ø D2 [mm]33
Ø D3 [mm] short-
Ø D3 [mm]83
L [mm]50
Order No. Gage length A in mm    
50.640.16.37
BT50  Shrink Fit Chuck Power Shrink Chuck short Pictogram
short, 100.00 mm
DXF
Step
Add item to wishlist Add item to wishlist Item already on wishlist
50.642.16.37
BT50  Shrink Fit Chuck Power Shrink Chuck oversize Pictogram
oversize, 160.00 mm
DXF
Step
Add item to wishlist Add item to wishlist Item already on wishlist
50.646.16.37
BT50  Shrink Fit Chuck Power Shrink Chuck ZG200 Pictogram
ZG200, 200.00 mm
DXF
Step
Add item to wishlist Add item to wishlist Item already on wishlist
Clamping Ø D1 [mm] 18
Ø D2 [mm] short44,7
Ø D2 [mm]44
Ø D3 [mm] short-
Ø D3 [mm]83
L [mm]50
Order No. Gage length A in mm    
50.640.18.37
BT50  Shrink Fit Chuck Power Shrink Chuck short Pictogram
short, 100.00 mm
DXF
Step
Add item to wishlist Add item to wishlist Item already on wishlist
50.642.18.37
BT50  Shrink Fit Chuck Power Shrink Chuck oversize Pictogram
oversize, 160.00 mm
DXF
Step
Add item to wishlist Add item to wishlist Item already on wishlist
50.646.18.37
BT50  Shrink Fit Chuck Power Shrink Chuck ZG200 Pictogram
ZG200, 200.00 mm
DXF
Step
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Clamping Ø D1 [mm] 20
Ø D2 [mm] short44,7
Ø D2 [mm]44
Ø D3 [mm] short-
Ø D3 [mm]83
L [mm]52
Order No. Gage length A in mm    
50.640.20.37
BT50  Shrink Fit Chuck Power Shrink Chuck short Pictogram
short, 100.00 mm
DXF
Step
Add item to wishlist Add item to wishlist Item already on wishlist
50.642.20.37
BT50  Shrink Fit Chuck Power Shrink Chuck oversize Pictogram
oversize, 160.00 mm
DXF
Step
Add item to wishlist Add item to wishlist Item already on wishlist
50.646.20.37
BT50  Shrink Fit Chuck Power Shrink Chuck ZG200 Pictogram
ZG200, 200.00 mm
DXF
Step
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Clamping Ø D1 [mm] 25
Ø D2 [mm] short44,7
Ø D2 [mm]44
Ø D3 [mm] short-
Ø D3 [mm]83
L [mm]58
Order No. Gage length A in mm    
50.640.25.37
BT50  Shrink Fit Chuck Power Shrink Chuck short Pictogram
short, 100.00 mm
DXF
Step
Add item to wishlist Add item to wishlist Item already on wishlist
50.642.25.37
BT50  Shrink Fit Chuck Power Shrink Chuck oversize Pictogram
oversize, 160.00 mm
DXF
Step
Add item to wishlist Add item to wishlist Item already on wishlist
50.646.25.37
BT50  Shrink Fit Chuck Power Shrink Chuck ZG200 Pictogram
ZG200, 200.00 mm
DXF
Step
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Product wishlist