Hi-Power Milling Chuck


Hi-Power Milling Chucks achieve powerful clamping for 100% optimized performance during heavy duty end milling. Fine slots and needle bearings assure powerful and precise clamping. Even though a milling chuck is for heavy cutting, the Hi-Power Milling Chuck keeps runout accuracy of .0004" T.I.R. at 4xD.

This product has recently expanded to now include direct clamping of Ø.500" and Ø12mm cutting tools. We have labeled these chucks as the HMCJ series.

Hi-Power Milling Chuck
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Powerful, Heavy Duty End Milling

Powerful, Heavy Duty End Milling

  • Powerful clamping for heavy cutting
     
  • The thick wall on a clamping part (e.g. 10mm thick for ø32) prevents chattering
     
  • ISO tapers are now standard BIG-PLUS®
     


  • Keeps runout accuracy of .0004" T.I.R. at 4xD  

  • Coolant-through

  • A new slim nut design has been introduced




A Variety of Hi-Power Milling Chuck


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"J Series" BCV40

New!
Clamping Range Dia.:
.500"
Gauge Length: 2.50"
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BCV40 S-Type (Slim Nut)


Clamping Range Dia.:
.750"/1.000"/1.250" & 20mm/32mm
Gauge Length: 3.35"-4.00"
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BCV50 S-Type (Slim Nut)


Clamping Range Dia.:
20mm/32mm
Gauge Length: 4.13"
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BCV50


Clamping Range Dia.:
.750"-1.500"
Gauge Length:
4.00"-4.50"


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BBT30 S-Type (Slim Nut)


Clamping Range Dia.:
.750" & 16mm-32mm
Gauge Length:
2.76"-4.13"
"J Series" (Ø12mm clamping) now available for BBT30!


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BBT40 S-Type (Slim Nut)


Clamping Range Dia.:
.750"-1.000" & 16mm-32mm
Gauge Length:
2.95"-5.31"

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BBT40


Clamping Range Dia.:
1.250"
Gauge Length:
4.00"

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BBT50 S-Type (Slim Nut)


Clamping Range Dia.:
16mm-42mm
Gauge Length: 4.13"-11.81"

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BBT50


Clamping Range Dia.:
.750"-1.250"
Gauge Length: 4.00"

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"J Series" BBT30/40/50

New!
Clamping Range Dia.: 12mm
Gauge Length: 
2.36" - 6.50"

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HSK-A40/A50/A63/A100 S-Type (Slim Nut)


Clamping Range Dia.:
20mm-42mm
Gauge Length:
3.35"-11.81"
"J Series" (Ø12mm clamping) now available for HSK-A63!

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HSK-A125


Clamping Range Dia.:
.750"-2.000"
Gauge Length:
4.09"-6.09"

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C5 & C6 S-Type (Slim Nut)


Clamping Range Dia.:
16mm-32mm
Gauge Length:
2.56"-5.31"

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C8


Clamping Range Dia.:
20mm-32mm
Gauge Length:
3.15"-5.31"

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"J Series" ST32

New!
Clamping Range Dia.: 12mm
Gauge Length:
4.72"-7.87"

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CKB6 & CKB7


Clamping Range Dia.:
.750"/1.250" & 20mm/32mm
Gauge Length:
2.95"-4.13"

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Secure & Reliable Slot Design


Fine and narrow slots make the clamping part deform properly. The clamping part evenly clamps a cutting tool's shank for heavy cutting. The slots also eliminate the oil that spoils clamping torque.



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High Concentricity Achieves Low T.I.R.


Even though a milling chuck is for heavy cutting, the New Hi-Power Milling Chuck keeps runout accuracy of .0004" T.I.R. at 4xD.




Clamping Torque of Hi-Power Milling Chuck (HMC1.250)


High Clamping Torque!

Tightening torque is magnified by tightening the nut with an original design of a roller bearing as in the figure shown above. When a roller bearing smoothly brings the nut downwards, a wall on a clamping part of the chuck elastically deforms and high clamping force is achieved on a cutting tool's shank. Furthermore, the wall is designed to be thick enough to prevent chattering.

 

Plug Screw for Flange Through Coolant

 

This Plug Screw A (option) prevents coolant leakage through retention knobs.

Bores on Form B are sealed with Plug Screw B.

  • Remove Plug Screws B (2 pcs.) from end face of flange.
  • Failure to use the Plug Screw "A" or other sealing method may result in coolant contamination of the spindle and lead to premature failure or accidents.
     

Optional Plug Screw for flange through coolant

Straight Collets

 

PJC Collet

 

PJC Collet (For Peripheral Coolant Delivery)

HMC Body Models: HMC.500-HMC1.250
Clamping Range: ø.250"-ø1.000" (increments .125")

HMC Body Models: HMC12-HMC32
Clamping Range: ø3mm-ø25mm (increments 2mm)


AC Collet


AC Collet (Reduction Collet for Non-Coolant Use)

HMC Body Models: HMC16-HMC42
Clamping Range Metric: ø6mm-ø32mm (increments 2mm)

 


OCA collet


OCA Collet (Metalic Sealed Coolant Collet for Through Tool Coolant Supply)

HMC Body Models: HMC20S-HMC42S
Clamping Range Metric: ø6mm-ø32mm (increments 1mm)

 

Wrench

C-Spanner Wrench

C-Spanner