Belt and brush grinding machine VEN BRUSH HYBRID

Year of manufacture 2011

GLÄTTBÜRSTENMASCHINE VEN BRUSH HYBRID
The machine is used for raw wood as well as intermediate lacquer sanding of smooth and profiled workpieces, consisting of:
2 belt sanding units
Sanding unit 1: Cross belt unit with
- pressure lamella belt with felt and graphite for long service life
- ISD link pressure beam system with 22 mm workpiece recognition
and 44 mm pressure piece width
- workpiece-controlled sanding belt blow-out
+ ISD link pressure beam system (sanding unit 1)
As ISA, but additionally with
- separate adjustable pressure for the edge area
(higher or lower)
- optional on outer edge only or outer and inner edges
- longitudinal and transverse edges or longitudinal edges only adjustable optimal
air guidance for compliance with TRK values, dust-tested

Sanding unit 2: Combination unit with
- grooved rubber contact roller Ø 130 mm, 60 Shore
- program-controlled infeed of the contact roller
- program-controlled grit compensation
- ISA link pressure beam system with 22 mm workpiece recognition
and 22 mm pressure piece width.
- Counter-rotation
- Workpiece-controlled oscillating sanding belt blow-out

+ ISA link pressure beam system (sanding unit 2)
- Pressure piece movable in longitudinal and transverse direction
- Punctiform pressure of the pressure piece
- Universal lamella for all sanding work
- Tolerance compensation +/- 1 mm
ISA link pressure system:

General, aggregates:
Sanding aggregates designed for single/two-shift operation.
- Belt run-off switch on wide belts coupled with oscillation
- Automatic sanding belt length compensation
- Sanding belt scanning optical non-contact and self-cleaning
on belt change side
- Adjustment of oscillation on belt change side
- Wear-free DC braking
- Extraction hoods with optimum air guidance to comply
with TRK values,


ISA/ISD-Control
- High-resolution workpiece recognition in 22 mm grid
- Free feeding of complex part shapes
- Multiple feeding with small lateral distance
- Grinding intensity individually adjustable on all edges
- Grinding pressure adjustable via program
- Line control of link pressure beams (feed-dependent)
- All settings via operator terminal (program-controlled)

Control
All settings, that need to be made for different grinding tasks can be made and saved directly via the touch operating terminal.
Thus, all achieved sanding results are reproducible at any time.

Sanding unit 3: 1 cross-brush unit
consisting of four counter-rotating brush segments for intensive smoothing of the workpiece profiling running crosswise to the conveying direction. Designed as an exchangeable brush module.Grinding speed infinitely adjustable.
Grinding unit 4+5: 2 rotating brush units
The brushes are equipped with a quick-change system so that brushes with different fillings can also be used within a few minutes.
The brush speed is changed via frequency converter and is shown on a display. The brush height can be adjusted individually for each of the brushes.
Machine frame
Heavy welded steel construction to accommodate 2 sanding units. Electric control cabinet integrated in the frame.
- Constant inlet height of 900 mm
- Operating and belt change side on the right
- Heavy height adjustment via lifting spindle gear
- Transport table with conveyor belt in vacuum design and
1 vacuum blower 5.5 kW
- Safety equipment according to CE standard
- Electrical equipment according to VDE
- Doors on both machine sides, on belt change side with
safety switches and viewing window for checking the grinding
belt oscillation

Operator terminal "SIEMENS" MP 277
- Graphic operator guidance via 10.5" color screen
- Program memory with 300 program memory locations
- Setting of all parameters via program
1 electrical control cabinet
With all necessary switching and fuse elements, motor protection switches, indicator lamps and main switch.
The switch cabinet contains all necessary contacts for interlocking the offered machine as well as machines from other manufacturers.
The switch cabinet is integrated into the machine.

Technical data:
Length: 4,370 mm
Working width: 1,300 mm
Working height: 900 mm
Sanding unit1 12 kW
Sanding unit 2 15 kW
Belt speed: 1.6 - 16 m/s
Belt dimension 1: 150 x 4.900 mm
Belt dimension 2: 1,370 x 2,150 mm
Brush units: 3 KW each
Brush length: 1,340 mm
Brush diameter: 350-440 mm
Brush speed: 50-450 rpm.
Drive power per brush: 3 kW

Extraction volume dust extraction
Total volume dust-containing exhaust air: 10,500 m³/h
(to be provided on site)
Electrical connected load: 69 kW