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LÖWER-DoubleSander Solid DSM 2004
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Double-sided four-belt single wood sander for
Sanding solid wood such as window frames etc.
Highly stable top design with innovative details. Suitable
for high continuous loads even with higher chip removals.
- sanding units arranged one after the other for pre-grinding,
Fine sanding and finishing sanding, each from above and below
1. Belt sanding unit with heavy steel roller
2. Belt sanding unit with rubberized roller and shoe
3. Finishing unit with fiber brush
- Directly driven grinding rollers for slip-free
Power transmission
- maintenance and wear-free CERMET-coated grinding wheels
shoes with very good thermal conductivity and absolute
Dimensional accuracy
- External cooling of the grinding zones for cooler grinding
and longer sanding belt service life
- force-guided pneumatically controlled sanding belt
oscillation
- effective sanding dust extraction directly on the
Grinding rollers
- Airborne dust extraction on the tension rollers
- Integrated brushing and finishing device with large
Grinding dust extraction
- motorized grinding thickness adjustment via precision
threaded spindles and large-sized linear ball screws
bearing sets on hardened and ground precision
shafts with dust and dirt protection
- Adjustment of the chip removal at the bottom via precision
Threaded spindle with dimension display via scale ring
(Resolution 0.1mm)
- Sanding belt tension via pneumatic cylinder
constant clamping pressure
- Sanding belt change with pneumatic belt relaxation
Within seconds
- Adjustment option for the sanding belt run
Band change
- electro-pneumatic compressed air monitoring
- Anti-running protection via contact roller if it is too thick
workpieces
- Workpiece transport via calibrated non-slip and non-stick
fixed conveyor belts over heavy, cast tables
Finely planed surface and spring-loaded pressure rollers
with fine adjustment
- Cardan shaft drive for smooth and consistent
Workpiece transport
- Feed gear motor with stepless speed
4-20 m/min
- all motors electrically protected
- ergonomically arranged controls
- digital thickness display (resolution 0.1mm) with modern
Magnetic tape system
Technical data:
- Sanding belt speed 22 m/s
- Sanding belt length 1800mm
- Sanding belt width 200mm

- Working width 190mm
- Grinding thickness 2-180mm
- four brake motors for 5.5 kW drive
- Feed motor 1.5 kW
- Feed speed 4-20 m/min.
- automatic height adjustment 0.37 kW
- two brush units
with fiber brushes D 120 x 200mm at 0.37 kW
- Suction nozzle 2 x 180mm
2 x 120mm
- Extraction air speed 20 m/s
- Pneumatic connection 6 bar
- Working height 870mm
- Length (with soft disc 2740mm) 2600mm
- Length with control panel (with soft disc 3035mm) 2985mm
- Width 880mm
- Height 1910mm
- Weight approx. 3300 kg
- Operating voltage 400 volts, 50 Hz, 3P
- CE version
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Price of the above machine on request!
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Special accessories with additional charge:

Workpiece blow-off
- using nozzles from above and below at the machine outlet
arranged, pneumatically controlled

4-belt sanding belt blowout
via nozzles directly on the radii of the tension rollers inside
the suction arranged, timer controlled on/off 5 seconds each,
can be switched on separately

Disc unit for defibering
- two grinding flap discs with a diameter of 200mm
(max. grinding width 180mm)
- Adjustable laterally and in delivery
- including frequency converter for stepless speed control
instead of the standard brushing and finishing facility

Soft disc aggregate
a soft disc each at the top and bottom for the
intensive defibering cross-section with fine grain size
- Discs with a diameter of 200mm
- Manually adjustable laterally and in delivery
- sensor-controlled automatic immersion
- Continuous speed control via frequency converter
- Boundary ruler min. workpiece thickness 20mm
instead of the standard brushing and finishing facility

Roller finish package
- two grooved roller base bodies with grinding lamellas
equipped
- Total diameter approx. 180mm
- including frequency converter for stepless
Speed ??control
instead of the standard brushing and finishing facility

Lateral displacement of the entire machine
- adjustable 50-100mm oscillating for more even
Utilization of sanding belts, finishing tools and
Transport system, geared motor 0.37kW
(not available in conjunction with disc/softdisc unit)

Transport freewheel device
- when linked with little distance to the previous machine

External start impulse of the machine via a button
Control option via an external PLC control (at
chaining in production line)

DUPLO control
- additional control panel for attachment to a
upstream machine with the following functions:
- Start button
- Emergency stop switch
- Height adjustment up, down and 1/10 down
- Digital strength display
- shielded special cable, (max. 20m)

PLC Power Panel package for DSM
instead of standard contactor control
- B&R PLC touch panel for operation and display
- Parameters that can be set using the touch panel are workpiece thickness,
Grinding units on/off, feed on/off,
Feed speed, belt blow-off on/off (if
available), disc motor (if available)
- Saving the parameters as machine programs
- Ethernet interface (UDP protocol)
- Manual/automatic operation selector switch

Road connection, preparation for master computer control

Automatic workpiece thickness scanning
(no prior measurement necessary)

Set of SmartFlex sanding flaps for DSM with sanding flap discs
consisting of:
60 strips M 35 / 50

Set of SmartFlex sanding flaps for DSM with flap rollers
consisting of:
48 strips M 55 / 200

Sandpaper disc VB for soft disc
D=200mm grit 280
with velor backing (Velcro), pack of 100.
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Prices of the above-mentioned special accessories on request!
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(technical information according to the manufacturer - no guarantee!)
All prices quoted are net. plus statutory VAT