Should I use shrink fit?
If you do high speed, or high torque
machining you should seriously consider the benefits of shrink fit technology. Your investment will pay for itself many times
over.
BT Shrink Fit tool holder
Shrink Fit Tool Changing Machine
Click HERE to see a video demo!
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Performance
With shrink fit toolholders vibration is
reduced and cutting is noticeably faster and smoother.
Manufacturing times can be reduced while maintaining the quality
and accuracy demanded by today's competitive markets.
How it works
Shrink fit uses the expansion and
contraction properties of metal to provide extremely powerful
tool holding. The bore is slightly smaller than the tool
shank, and when heated it expands just enough to allow the tool
to be inserted. When it cools, the contraction of the metal holds the
cutting tool with 10,000 lbs of force.
| Safe, controlled induction heat from the shrink fit machine expands the inside diameter of the tool holder bore so the tool shank can be inserted. |
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| Automatic air cooling contracts the bore to hold the tool with up to 10,000 lbs of holding power creating an extremely rigid connection between the spindle and the cutting tool. |
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Refer to the chart below for the features and benefits of Shrink Fit tooling. |
Shrink Fit Tooling Features & Benefits
10,000 lbs.
Holding Power |
Shrink Fit
Tool Changing |
Highest Rigidity |
One-Piece
Tool Holder |
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T.I.R.
0.0002" max.
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Permits
increased feeds & speeds
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All
but eliminates the chance of slippage
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Change
tools in as little as 6 seconds
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Pre-set tools off-line
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Eliminate collets and nuts
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No need to
use torque wrenches or vises
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Works
with carbide and HSS tools
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Permits
increased chip load
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Improved
accuracy and repeatability
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Improved
carbide tool life and reduced tooling costs
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Increase spindle
bearing life
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Best possible balance
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Thin
profile for machining hard to reach areas
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Allows
short gauge lengths for increased rigidity
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