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Löwer DSM 2004 Double-Sided Sanding Machine
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4-Belt Sander + Disc Unit (Top/Bottom)

Manufacturer's Description:
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Double-sided, four-belt, single-wood sander for sanding
solid wood such as window frames, etc.
Highly stable, top-quality design with innovative details. Suitable for high
continuous loads, even with high material removal rates.

- Sequentially arranged grinding units for roughing, fine grinding,

and finishing, each from above and below

1. Belt grinding unit with heavy steel roller

2. Belt grinding unit with rubberized roller and shoe

3. Finishing unit with fiber brush (see optional equipment below)

- Direct-drive grinding rollers for slip-free power transmission

- Maintenance-free and wear-free CERMET-coated grinding shoes with
very good thermal conductivity and absolute dimensional accuracy

- External cooling of the grinding zones for cooler grinding and longer
belt life

- Forced pneumatically controlled grinding belt oscillation

- Effective grinding dust extraction directly at the grinding rollers

- Airborne dust extraction at the tension rollers

- Integrated brushing and finishing unit with large grinding dust extraction

- Motorized grinding thickness adjustment via precision threaded spindles and
large linear ball bearing sets on hardened and
ground precision shafts with dust and Dirt protection

- Chip removal adjustment at the bottom via precision threaded spindle

with dimension display via scale ring (0.1 mm resolution)

- Sanding belt tension via pneumatic cylinder with constant tension pressure

- Sanding belt change with pneumatic belt release in seconds

- Sanding belt tracking adjustment during belt change

- Electropneumatic compressed air monitoring
- Infeed protection via contact roller for workpieces that are too thick

- Workpiece transport via calibrated, non-slip and adhesive conveyor belts

over heavy-duty cast iron tables with a finely planed surface and spring-loaded

pressure rollers with fine adjustment

- Cardan shaft drive for smooth and consistent workpiece transport

- Geared feed motor with infinitely variable speed 4-20 m/min

- All motors electrically protected

- Ergonomically arranged operating elements

- Digital thickness display (0.1 mm resolution) with modern magnetic tape system

Technical data:
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- Sanding belt speed 22 m/s
- Sanding belt length 1800 mm
- Sanding belt width 200 mm
- Working width 190 mm
- Sanding thickness 2-180 mm
- Four brake motors for drive 5.5 kW

- 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 200 mm at 0.37 kW each

- Extraction ports 2 x 180 mm, 2 x 120 mm

- Extraction air velocity 20 m/s

- Pneumatic connection 6 bar

- Working height 870 mm

- Length (with soft disc 2740 mm) 2600 mm

- Length with control unit (with soft disc 3035 mm) 2985 mm

- Width 880 mm
- Height 1910 mm
- Weight approx. 3300 kg
- Operating voltage 400 volts, 50 Hz, 3P
- CE compliant

Equipped with the following special options:
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- Sanding belt blow-off 4-belt
via nozzles directly at the radii of the tension rollers within the extraction system
arranged, separately switchable

- Disc unit top/bottom instead of standard fiber brush unit:
Two 200 mm diameter abrasive flap discs (max. abrasive width 180 mm)
Adjustable laterally and in the feed direction
Includes frequency converter for infinitely variable speed control INSTEAD OF
the standard brush and finishing unit

Original video by Engelfried

(Technical specifications according to the manufacturer - without guarantee!)