Additive manufacturing merges two worlds
REVOLUTIONARY HYDRAULIC EXPANSION TECHNOLOGY
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CLAMPING | Hydraulic expansion technology
REVOLUTIONARY HYDRAULIC
EXPANSION TECHNOLOGY
The benefits of two worlds combined in one product – As lean as a shrink chuck with the simple
handling of the hydraulic expansion technology
MAPAL has achieved a revolution in clamping technology with the new HTC technology
with lean contour. Thanks to additive manufacturing, it has become possible to utilise
the benefits of a hydraulic chuck in an even
wider field of applications for the first time.
On the one hand, the new chuck exhibits the
lean contour with the 3° back taper known
from the shrink chuck and the familiar high
holding forces, but does not require costly
shrink devices. On the other hand it offers
the benefits of the MAPAL HTC technology,
whereby the "T" stands not only for high
Torque transmission, but also for Thermal stability. The wide operating temperature range
up to 170°C ensures additional process reli-
ability. The new chuck offers significant benefits not only for mould making, but also for
applications in the automotive and aerospace
sector. It is suitable for all machining operations, particularly in contour-critical areas. In
addition, quick and simple clamping of the
tool is guaranteed.
CLAMPING | Hydraulic expansion technology
Optimum radial run-out as the clamping
Area is located close to the chuck tip
High torque transmission
and thermal stability
A back taper of 3° on the outer contour allows
machining in contour-critical areas
All-in-one – no soldered joint
between sleeve and tool body
High flexural strength
despite lean design
Quick and simple clamping thanks
to hexagon head screw
Optionally with dynamically
balanced HSK
Additively manufactured hydraulic clamping technology with minimum tool restriction
for a broad spectrum of applications
ADVANTAGES
-- Broad spectrum of applications, for example
in mould making, but also in the automotive
and aerospace sector
-- Machining in contour-critical areas with
hydraulic clamping technology
-- Reliable clamping even at temperatures up
FEATURES
-- Lean contour with a back taper of 3°
-- Dynamic residual imbalance eliminated
-- High torque transmission and bending
-- Better surface quality and circularity
resistance
-- Quick and simple clamping directly on
the machine
-- Balancing quality G=2.5 at 25,000 rpm
to 170°C thanks to the elimination of the
-- Diameter range 6-12 mm
soldered joint between sleeve and tool body
-- Available with HSK and SK shanks
-- Optimum radial run-out accuracy of 3 µm
with a projection length of 2.5 x D
-- Better surface finish with longer tool life
-- Shorter set-up times and lower tool costs
-- No shrink units required
HSK DYNAMICALLY BALANCED
-- Balluff chip possible as an option
-- For use on all machine tools without any
modification
-- Modular tool systems can be dynamically
balanced
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CLAMPING | Hydraulic expansion technology
NO LIMITING FACTORS THANKS TO
ADDITIVE MANUFACTURING
MAPAL exploits the potentials of additive manufacturing in order to be able to use the HTC
technology in a chuck with a 3° taper. The limiting factor of the soldered joint between tool
body and sleeve can thus be eliminated and a lean contour achieved for the first time. The new
technology of additive manufacturing is now making previously unachievable innovations in
clamping tool production possible. Within the cabinet of the laser printer, geometries can be
produced unhindered by machine clamps, tools and production means. After MAPAL had already successfully produced and employed the first additively manufactured tools in series, the
HTC chuck with lean contour represents the next innovative product.
CLAMPING | Hydraulic expansion technology
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HSK – DYNAMICALLY BALANCED
Until now it has been almost impossible to meet the demand for dynamic balancing of tool systems and their individual components using
HSK clamping elements and tool systems. The different depths of key
block slot in the taper of the HSK adapter create a dynamic residual
imbalance at the clamping tool which is then reflected also in the tool
systems.
The newly developed version of the HSK makes it possible for the first
time to dynamically balance components with an HSK connection. The
modification of one of the two key block slots into a second deep slot
with the same volume eliminates the mass imbalance. The HSK thus
loses its only disadvantage, while maintaining its full range of functions and all the benefits to date compared with other tool shanks. No
modifications are necessary to the machine tools is order to allow the
use of the new dynamically balanced HSK. The dynamically balanced
system leads to improvements in both surface quality and circularity.
Dynamically balanced
Statically balanced
Balancing bore not required
New deep key block slot
Shallow key block slot
A change to the optimised design is possible without risk
or limitations
The HTC with lean contour will be
the first series product with the
optimised HSK
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CLAMPING | Complete standard programme
TECHNOLOGY LEADER
IN THE STANDARD RANGE
MAPAL develops and produces an extensive range of standard clamping
technology products in Ehrenfriedersdorf and Aalen. From the manual
HSK clamping units with the MAPAL KS clamping cartridge, through
clamping tools with flange module, hydraulic and shrinking technology
to adapters, the MAPAL standard programme covers a wide variety of
systems and technologies. MAPAL offers a broad range of standard programme also for machining with minimum quantity lubrication (MQL).
HighTorque Chuck – HTC for
reliable torque transmission
up to 170°C
Additive manufacturing technology
makes HTC chuck with slim contour
possible
Precision drill chuck also
as micro version
Manual HSK clamping technology
for standard, high pressure and MQL
– All standard shanks
(HSK, SK, BT, CAT, . . .)
Optionally with dynamically balanced HSK for all
HSK-A chuck types
– MQL product range available from stock
– Wide range of floating holders
CLAMPING | Complete standard programme
Hydraulic clamping technology with
compensation of spindle errors
Shrink chuck in long, short, heavy-duty
and slim version
HydroChuck with axial and radial
length adjustment and short,
heavy-duty version
– Chuck optionally available with additional resealable cooling channel bores
Detailed information: www.mapal.com
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– Chip versions with Balluff chip
available from stock
Reaming | Fine boring
Drilling | Boring | Countersinking
Milling
Turning
Clamping
Actuating
Setting | Measuring | Dispensing
Services
www.mapal.com
Order No. 10145760 | V1.0.0
HTC-EN-CO-01-030-0815-VVA Printed in Austria. Right of technical modifications reserved. © MAPAL Dr. Kress KG | Reprinting, in whole or in part, only with the approval of the publisher.
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