Wide belt sander

Weber KSF-3-1350

WEBER KSF-3-1350 (CMC) Fine/Cross Sanding Machine
with 3 sanding belts for premium fine, veneer, and high-gloss sanding.
Featuring a constant working height and configured as follows:

Machine Frame
Heavy-duty welded steel construction designed to accommodate 3 sanding units and workpiece cleaning components,
such as workpiece air cleaning. Electrical control cabinet integrated into the frame.
- Constant infeed height of 900 mm
- Control and sanding belt change side is left in feed direction
- Heavy-duty height adjustment via spindle lift gearing
- High-quality transport table with conveyor belt
- Stepless feed speed from 3–18 m/min, frequency controlled
- Vacuum conveyor version with one vacuum blower, 5.5 kW,
with a vacuum channel extending up to the machine’s upper edge
- Safety systems compliant with CE standards
- Electrical equipment conforms to VDE
- Doors on both sides of the machine; on the belt change side with safety interlocks
and sight window for monitoring belt oscillation
- With one infeed and outfeed table with rubber-coated rollers

Unit 1:
Sanding units engineered for double-shift operation.
- Belt run-off switches connected to oscillation monitoring on wide belts
- Automatic sanding belt length compensation
- Non-contact optical belt detection, self-cleaning, on belt change side
- Oscillation adjustment on belt change side
- Wear-free DC braking
- Extraction hoods with optimal airflow to maintain TRK levels
Unit 1: Cross-sanding unit with
- Pressure lamella belt with felt and graphite for extended service life
- ISD segmented pressure beam system with 11 mm workpiece detection and 44 mm
pressure pad width
- Workpiece-controlled sanding belt blow-off unit

Unit 2: CBF Combi Unit with
- Grooved rubber contact roller, Ø 130 mm, rubber hardness 60 Shore
- Cross-running lamella belt with separate 4.0 kW drive
- ISA segmented pressure beam system with 11 mm workpiece detection and 22 mm
pressure pad width (counter-rotation)
- Workpiece-controlled oscillating sanding belt blow-off unit

Unit 3: Cross-sanding unit with
- Pressure lamella belt with felt and graphite for extended service life
- ISD segmented pressure beam system with 11 mm workpiece detection and 44 mm
pressure pad width
- Workpiece-controlled sanding belt blow-off unit

Control
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Control terminal: 'SIEMENS' MP 377 12" multi-panel
- Graphical operator guidance via 12" color display
- Program memory for 300 programs
- Parameter setting via program

- WANDRES Micro-Cleaning (single-brush version)
Power sword brush with integrated micro-moistening of the
linear brush (for optimal lacquer dust removal)

Technical Specifications:
Working width: 1350 mm
Drive unit 1 (frequency controlled, Eco-Drive): 15 kW
Drive unit 2 (frequency controlled, Eco-Drive): 20 kW
Drive unit 3 (frequency controlled, Eco-Drive): 15 kW
CBF drive: 3 kW
Vacuum blower: 5.5 kW
Feed drive (frequency controlled): 3.0 kW
Height adjustment (frequency controlled): 3 kW
Sanding belt speeds (frequency controlled): approx. 3–20 m/s
Cross-belt dimensions (W x L): 2x150x5100 mm
Wide belt dimension (W x L): 1370 x 2620 mm
Workpiece thickness (min./max.): 4–140 mm

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