Steep taper colletholders BT

Universally suitable for different machining applications.
Features and benefits
Features and benefits
MAS 403 / JIS B 6339 / DIN ISO 7388-2

 Runout TIR ≤3 μm

Measured from inner taper to outer taper.

 Taper accuracy AT3

Better spindle-to-holder fit and accuracy.

 Surface finish max. Ra 0.25

Achieve high clamping force and high transferable torque.

 Balancing

100 % balanced to G 2.5 @ 25,000 rpm/<1gmm.

 XL colletholders

100 % balanced to G 2.5 @ 5,000 rpm.

Runout TIR ≤10 μm

 Hi-Q balancing system

Ready to accept Hi-Q balancing rings which allow for the offset of the imbalance introduced by the cutting tool up to 80,000 rpm depending on the balancing rings used. All colletholders with the additional type information “H” in the article name are designed for balancing rings.

 Hi-Q / ER clamping nut included in delivery

Guarantees highest clamping force and best balancing.

 Vibration dampening

Our holders offer good vibration dampening to sustain a high surface finish and can help prevent chatter.

Expert advice

We recommend tightening the clamping nuts using a torque wrench. The overview of the recommended tightening torque is available for download in the media center.

 

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Filter by properties

Title Form Interface size Norm size Length Style Drawings Part No Compare Get an offer
BT 40 / MR 32 x 100
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Standard 40 32 Standard PDF DXF STEP 5140.13250
BT 40 / MR 25 x 100
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Standard 40 25 Standard PDF DXF STEP 5140.12550
BT 40 / MR 32 x 070
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Standard 40 32 Standard PDF DXF STEP 5140.13230
BT 40 / MR 16 x 100
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Standard 40 16 Standard PDF DXF STEP 5140.11650
BT 40 / MR 25 x 070
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Standard 40 25 Standard PDF DXF STEP 5140.12530
BT 40 / MR 11 x 100
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Standard 40 11 Standard PDF DXF STEP 5140.11150
BT 40 / MR 16 x 070
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Standard 40 16 Standard PDF DXF STEP 5140.11630
BT 30 / MR 25 x 100
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Standard 30 25 Standard PDF DXF STEP 5130.12550
BT 30 / MR 32 x 060
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Standard 30 32 Standard PDF DXF STEP 5130.13220
BT 30 / MR 16 x 100
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Standard 30 16 Standard PDF DXF STEP 5130.11650
BT 30 / MR 25 x 060
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Standard 30 25 Standard PDF DXF STEP 5130.12520
BT 30 / MR 16 x 050
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Standard 30 16 Standard PDF DXF STEP 5130.11610
BT 30 / MR 16 x 080
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Standard 30 16 Standard PDF DXF STEP 5130.11640
BT 30 / MR 11 x 050
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Standard 30 11 Standard PDF DXF STEP 5130.11110
BT 30 / MR 11 x 100
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Standard 30 11 Standard PDF DXF STEP 5130.11150

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