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HESSEMANN MFA IMPRESSION

We are offering for sale a HESSEMANN MFA IMPRESSION multifunctional sanding machine for flat surfaces. The machine was purchased in 2017 for in-house use and features very low operating hours – it sanded only 100-150 m² per month. This is a comprehensive solution for precise transverse, rotary, and longitudinal sanding, ensuring the highest quality surface finish.
Main Features and Advantages:
Working Width: 1,350 mm
Sanding Versatility: A combination of transverse, rotary (RUT brush unit), and longitudinal units allows for various sanding effects.
Precise CSD® Control (10-year guarantee): 2 pressure beams with computer-controlled selective pressure adjustment. It eliminates over-sanding of edges, guarantees constant pressure, and compensates for workpiece tolerances up to 2mm. The electromagnetic system requires no maintenance.
Advanced Automation: Industrial PC 10.4" LCD-TFT (with touchscreen, Windows Embedded Standard) with memory for 100 programs. Automatic setting of sanding parameters (motor speeds, start/stop, sanding intensity, pressure).
High Efficiency: Feed speed adjustable from 3-15 m/min.
Safety and Reliability: Sanding belt blow-off, conveyor belt cleaning.
Integrated Solutions: Pressure roller at the infeed for holding thin workpieces, assisting rollers for guiding small elements, de-ionizing bar, workpiece blow-off device.
Machine Composition:
Body: Machine body frame with conveyor table (endless conveyor belt with ½ inch diamond pattern, conveyor belt cleaning). Constant working height 880 mm. Upper part of the machine movable – mechanically adjustable depending on workpiece thickness (3-160mm).
Control: Integrated control cabinet, industrial PC 10.4" LCD-TFT color display (800x600 resolution), CF Card 1 GB, Windows Embedded Standard, Touch-Screen, production and downtime indicator, intranet connectivity, 100 program memory capacity.
Pressure Roller: Ø 100 mm, spring-loaded adjustable.
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Assisting Rollers: 2 driven rollers (at infeed and outfeed) for guiding small elements.
Transverse Sanding Unit (1 unit):
Belt dimensions: 5,400 x 150 mm
Belt speed: 2.0-20 m/s (frequency-controlled)
Drive power: 15 kW
Belt blow-off, non-wearing brake system, "door-in-door" version.
"R-U-T" Brush Unit (1 unit):
Brush discs in rotary transverse-orbital motion.
Collective drive for up to 19 brush discs (7.5 kW inverter).
Brush rotation in two directions, centrally adjustable height, quick brush disc change device.
Brush type: Flex Trim, Ø 180 mm, rotation speed: 5-25 m/min (1.5 kW with inverter).
Longitudinal Unit (1 unit):
Belt dimensions: 2,620 x 1,400 mm
Belt speed: 1.8-18 m/s (frequency-controlled)
Drive power: 15 kW
Belt blow-off (double number of blow-off holes), non-wearing brake system, automatic compensation of potential belt edge length differences, belt in counter-rotating motion.
Eccentric position of the front guide roller for light calibration tasks.
Brush Shaft Unit (1 unit):
Bristle type: fiber, Ø 120 mm.
Drive power: 0.75 kW.
Vacuum Table: Enables safe movement of workpieces shorter than 500 mm, integrated fan.
Energy Management System (EMS): Energy-saving management system.
Total Weight: 6,000 kg.
Total Electrical Connection: approx. 53 kW.
Compressed Air Requirement: Approx. 158 m³/h (average supply R 1", 7 bar, quality class 5;4;4* according to DIN ISO 8573-1).
Total Air Requirement (dust extraction): 173 m³/min (air speed 20 m/s, negative pressure approx. 1000 Pa).