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Milling with high holding

forces and optimum damping

Perfectly yours. First class technology from MAPAL

MAPAL NEWSLETTER 14 May 2010

HTC combines the advantages of hydraulic

expansion and shrink technology

Groove milling with the new MAPAL HTCHighTorque Chuck

Excellent surface finish and high millingspeeds

Material:Tool:

Blades:Chuck:

Machining values:Cutting speed:Feed rate:Spindle speedl:

Feed/tooth:

Coolant lubricant:

C45OptiMill Solid carbidemilling cutter 12 mmz = 4MAPAL hydraulic chuck,shrink chuck, HighTorque Chuck

v = 170 m/mincv = 810 mm/minfn = 4.500 rpm

f = 0,06 mmz

Dry machining

MAPAL shrink chuckper DIN 69882-8 with locating s

HSK-A63 per DIN 69893-1,shank 20 h6

The new and highly innovative manufacturing technique ofMAPAL's HighTorque Chuck combines high torquetransmission, ideal damping characteristics, outstandingrigidity of the overall system and radial run-out accuracy of< 3 m. The bending resistance is 1.4 times greater than theconventional MAPAL shrink chuck per DIN 69882-8.

These advantages guarantee excellent surface finish on thepart, significantly higher milling speeds and short machining

times while preventing edge chipping on the cutting edge andensuring a long service life for the tool.

MAPAL HighTorque ChuckA great step forward in

clamping technology

Noticeable appearance of chatter marks was the criterion for max. groove depth.

1

2

14 mm 1

8 mm 2

4 mm 3

Until now, the most commonly used clamping solutions formilling processes have been shrink chucks and hydraulicchucks. MAPAL is now extending the range of suitableclamping devices with the new HighTorque Chuck.The new MAPAL HighTorque Chuck combines the excellentclamping characteristics of hydraulic expansion technologywith the high holding forces of shrink technology.

Groovedepth[mm]

Ch

c

f

hgh

torq

e

ra

s

ission

u

k

or

i

u

t

n

m

MAPAL HighTorque Chuck HTCwith locating shank HSK-A63 per

DIN 69893-1, shank 20 h6

MAPAL hydraulic chuckper DIN 69882-7 with locatingshank HSK-A63 per DIN 69893-1,shank 20 h6

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Perfectly yours. First class technology from MAPAL

MAPAL NEWSLETTER 14 May 2010

The most essential details of the MAPAL solution

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%

%

%

%

%

High holding forces

High torque transmissionHigh radial run-out accuracy of 3 m

Axial and radial adjustment possible

Longer tool life

Optimum workpiece surface finish

Guarantees easy handling when

clamping tools

Clamping tools with the new MAPAL HighTorque Chuck is justas simple and easy as with a hydraulic chuck. No expensiveadditional equipment such as shrink devices etc. is required.

MAPAL Przisionswerkzeuge Dr. Kress KG

Perfectly yours.

1.4 times greater rigidity compared to

MAPAL shrink chuck

The MAPAL HighTorque Chuck HTC can

produce a torque transmission of 550 Nm

Comparison of torque transmission - MAPAL HighTorqueChuck, shrink chuck and hydraulic chuck 20 mm

MAPAL HighTorque Chuck HTC with locating shank HSK-A63 per

DIN 69893-1, shank 20 h6MAPAL hydraulic chuck per DIN 69882-7 with locating shank HSK-A63 per DIN 69893-1, shank 20 h6MAPAL shrink chuck per DIN 69882-8 with locating shankHSK-A63 per DIN 69893-1, shank 20 h6

Comparison of bending resistence - MAPAL HighTorque Chuck,shrink chuck and hydraulic chuck 20 mm

Deflection [mm/m]

Bendingtorque[Nm]

1.4 times greater rigiditycompared to shrink chuck

MAPAL HighTorque Chuck HTC with locating shank HSK-A63 per DI69893-1, shank 20 h6MAPAL hydraulic chuck per DIN 69882-7 with locating shank HSK-A63 per DIN 69893-1, shank 20 h6MAPAL shrink chuck per DIN 69882-8 with locating shankHSK-A63 per DIN 69893-1, shank 20 h6

The new MAPAL HighTorque Chuck HTC is available for deliveryas of June 2010. Just ask your authorised MAPAL salesrepresentative.

In stock as of June 2010

Torque[Nm]

%

%

%

%

Spindle protection

High overall rigidityChamber system ensures

high damping characteristics

Easy handling

P.O. Box 1520D-73405 Aalen

Phone +49 7361 585-0Fax +49 7361 585-150info@de.mapal.comwww.mapal.com