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Hydraulic 4-Roller
Vrxlvl p|ate bencjjng machines
The Haeusler4-roller plate bending Machines
The Haeusler hydraulic 4-roller plate
bending machine type is todays "state
of the art" technology, the result of
constant development and improvement combined with more than 50
years of Haeusler experience in the
world of roll bending. Many of
Haeusler's 4-roller plate bending
machine developments over the years
are now requested industry standards.
In 1965 Haeusler was the first to
bring the hydraulic 4-roller plate
bending machine on the market.
A few years later Haeusler initiated
the first hydraulic rotation drive of the
top and bottom rolls.
These with many other developments
and a comprehensive after sales
support, combined with the uncompromising quality, close customer project
development and relations, has from the
start made us the market leader in the
world of 4-roller plate bending machine
technology.
The following pages give you an
insight into the range of possibilities
and advantages for our VRM 4-roller
plate bending machine types
Some practical examples
produced on Haeusler
4-roller plate bending machines
TheVRM bending process
Feeding and automatic aligning of plate
minute
"
Raising of entry side roller to pre-bend
leading edge
2 minutes
Lowering of entry side roller; raising of
exit side roller
2 minutes
Continuation of bending and automatic
pre-bending of trailing edge
1 minute
Lowering bottom roller and opening of
tilting bearing
1 minute
..
Total 7 minutes
Advantages of the Haeusler VRM machines
,
Extremely long guide ways
at the side rollers (protected
by patents)
q
"
~.
*
Min. foundation dimensions
(in width, depth and length)
,~ Hydraulic unit seperate from
"•' the machine itself, for easy
accessible maintenance
-, All rolls sit 100% in spherical
roller bearings
.
r
r
Large (oversized) rollerdiameters with small camber
(min. deflection)
Automatic pressure balance
system between top to
bottom rolls
Direct drive (hydraulic) of
the top and bottom rollers
with automatic speed
compensation (avoids plate
slipping on the rolls)
-, Top- and bottom rolls
' equipped with pneumatic
resp. hydraulic instant brakes
(highest safety factor)
о
Rational cone bending by
our patented cone bending
device
Т
Depending on the
requirements the shortest flat
end possible
Ratio of flat end to machine size
Automatic central lubrication
11 system
Roller position devices are on
both ends of bottom and side
rollers
Bottom roll can be adjusted
by pressure or position
100%
1 * Wired with light-cables
* (secure against electromagnetic influences)
pre bending length
50%
1 x thickness
Plate thickness
2 x thickness
3 x thickness
Control Panel
Real time process
visualization
II Automatic error
detection
Automatic inspection
indication
CNC-control
(max. 30 axis)
User friendly (e.g. roller adjusting
(speed) over joy stick position, color
screen, intuitive menu guidance etc.)
On-line-diagnosis via modem
Bottom and side rollers can be adjusted
for pressure or position, which is
displayed in absolute, relative or angle
mode
Cone rolling system
Due to the inclination of the bottom roller, the
cone blank to be rolled is clamped and transported by top and bottom rollers on the big
radius. There is no firm contact between plate and
rollers at the smaller radius and thus differences
of circumferential speeds do not have to be
compensated for. The thrust of the plate is
absorbed by a special cone bending shoe creating
the necessary friction to compensate for the
difference in the small and big radius circumferential length.
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The Haeusler technology
The patented Haeusler design allows
the highest rigidity combined with far smaller
machine dimensions compared to conventional
technology
Patented
Haeusler technology
HaeuslerVRM models
VRM 3000x36 -
VRM 400 X 3 CNC
VRM bendable plate dimensions
200
150
100
50
0
1000
2000
3000
4000
5000
6000
7000
8000
Plate width (mm)
I Standard plate dimension range
VRM 4200 x 200 (cold bending) the worlds largest
4-roller-plate-bending machine
| Special plate dimension range
VRM 3000 x 25 with bridgesupport for top roller
allowing increased edge setting capacity
All machine dimensions (width x cold bending thickness) in mm
VRM 1500 x 6 CNC automatic bending machine with plate charging, centering and
shell discharging device
VRM 1500X40
VRM 3000 X 150 with lateral and upper support,
requiring only one operator, for bending, edge
setting, bending and tack welding
VRM 1200 x 14 equipped with interchangable
top roller for large batch productions of symmetric
and asymmetric cones
VRM 6000x18 CNC
VRM 3000x18
VRM 2 5 0 0 x 1 5 for vertical
(large diameter) or horizontal
plate bending processes
VRM 8000 x 20 with top roller preloaded at both ends for line pipe production and
extremly small diameter conical poles
VRM 4 0 0 0 x 1 2 5 CNC
Examples from our production program
Three and four-roller
plate bending machines
in ail sizes
Section and tube
roll bending machines
in all sizes
Automatic
roll bending machines
Pressure vessel
dished/flanged head
production lines
Sizing machines
Welding and
assembling equipment
Wheel rim
production lines
Vessel and truck fuel
tank production lines
Longitudinal seam
welded pipe mill (SAW)
Special
forming machines
The Haeusler Plant in Duggingen
(H)
Neu - Neu - Neu
Tel. +41 61 755 22 22
Fax +41 61 755 22 00
New - New - New
For all enquiries
please contact our
Swiss Plant:
German Plant
HAEUSLER AC
Baselstrasse 21
CH-4202 Duggingen
HAEUSLER GmbH
Am Rhein 15
D-7961 Rheinfelden
Phone:+41 61 751 55 55
Fax: +41 61 751 66 26
Phone: +49 7623 41 44
Fax: +49 7623 4 74 56
E-mail:
marketing-haeusler@swissonline.ch
Internet:
www.haeusler.ch