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Clamping
Systems
The hydraulic expansion tool-holder with
axial length adjustment for metal and wood
working machines with rotating tools.
Designed for automatic tool changes
- DIN 69871, DIN 69893-A, DIN 69893-F,
DIN 69893-E und JIS B6339 MAS BT.
Designed for manual tool changes
- DIN 69893-C.
Hydro expansion clamping holder
- Material 1600–1800 N/mm
2
tensile strength
- Hardness 52 + 2 HRC
- Holder balanced
- Laser marking
- Max. revolutions 40000 min
-1
(Observe rpm limits,
interface, fine balancing recommended!)
- Optimum operating temperature 20–50 °C;
higher temperatures upon request,
not more than 80 °C
- Coolant pressure maximum 80 bar
- Adjustment 10 mm
- Machinable shafts (tolerance h 6) with
and without ruduction sleeve:
- DIN 1835 shapes A, B, C, D
- DIN 6535 shapes H, HB, HE
Advantages of the
Hydraulic expansion holder
- Quicker tool changes
-
Higher concentricity
-
Vibration-damping
tool clamping
-
Increased tool service life
-
Reduction in micro-outbreaks
on the cutting edge
-
Improved surface quality
-
Flexibility due to the use of reduction sleeves
-
Low maintenance due to closed
clamping system
-
Simple to operate
Concentricity of the WTE hydraulic
expansion holder with test mandrel in
a tensioned state.
WTE Hydraulic expansion holder
-
Greater torque transmission
-
Design equiv. to DIN 69882-7
-
Higher positioning and repeat accuracy
-
Tool clamp with highest
concentrcity – maximum 3 µm
-
Concentricity inspection and balancing
protocol for each delivered hydraulic
expansion holder
-
Continuous enhancements
-
Certified production acc. to
DIN EN ISO 9001:2000
Hydraulic fluid is compressed using a
hydraulic clamping set (pressure screw,
pressure pin, seal).
The pressure causes a uniform deformation
of the expansion sleeve so the tool shank is
clamped with higher concentricity.
1 T-wrench
2 Pressure screw
3 Pressure pin
4 Seal
5 Hydraulic oil
6 Hydraulic bush
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