Hess Junior

Single wood sanding machine
Machine in checking process at the moment!

Basic structure:
Stable, heavy welded construction made of thick-walled rectangular hollow profiles
with additional, statically calculated reinforcements for optimal
Vibration dampening.

Staggered grinding units with large dimensions
Belt drive drums for slip-free belt running.
Two-point suction for direct and airborne dust extraction with integrated blow-off device.
Grinding units in heavy steel plate construction as the basis for vibration-damped, quiet tape running.
All guides as a ball linear set on hardened and polished waves.
Permanent precision thanks to dust and dirt protection the ball linear sets.
Contact roller and sanding pad in a balanced ratio for sanding belt grain load.
The large-sized drive drums guarantee the full transmission of the 5.5 kW drive power
Grinding motors on the sanding belt.
This results in the greatest chip removal possible.
Automatic machine stop activation in the event of a belt break.
Optical display on control panel.
Sanding shoe for finish made of special material with optimal
Heat dissipation and additional sliding coating.
Easy to handle Pad change.
Sanding belt tension over appropriately sized Compression springs.
Sanding belt relaxation for belt changing using pneumatic
Device for sensitive, distortion-free placement of new tapes.
Upper Grinding unit and brush device (additional equipment) centrally motorized adjustable.

Wooden guide in the inlet area for hard guide and bearings mounted on both sides pressure rollers.
Tip-proof transport of profiled workpieces
Calibrated conveyor belts with infinitely adjustable feed rate.
Automatic machine stop triggering by wood thickness control device.
Visual display of the control panel.

Inlet table via fine-running, precise threaded spindle for lower
Grinding chip removal can be adjusted manually using a scale (resolution 0.1 mm).
The length Column table guide guarantees absolute parallel adjustment.
The flight circle is coordinated with the exit table by adjusting the height of the lower one
Grinding unit via precise threaded spindle and scale display (resolution 0.1 mm) accomplished.

Clear, user-friendly arrangement of all electrical functions and operating and display elements on the front of the machine: grinding unit below,
Grinding unit on top, workpiece transport device
Grinding thickness adjustment, top/bottom brushing device, belt utilization,
Operating display, fault display.
All motors are against overload electrically protected.

Technical data :
Sanding belt speed: 25 m/sec.
Grinding width: 190 mm
Grinding thickness: 4 - 150 mm
Shortest workpiece length: 280 mm

Feed speed, continuously adjustable 5 - 25 m/min.
Sanding belt dimensions: 200 mm width, 1850 mm length
Electrical equipment according to VDE
Electrical connection: 400 V., 3/N, 50 Hz.
Pneumatic connection: R 3/8", 6 bar, 80 NL grinding units: 2 x 5.5 kW feed: 0.75 kW Height adjustment: 0.18 kW
Pneumatic connection: R 3/8", 80 NL, min. 6 bar, max. 8 bar
Exhaust air quantity: 2 x 2000 to 2500 m3/h 20 - 25 m/sec.
Suction connection piece: 2 x 180 mm diameter, at the top of the machine housing
External dimensions: without control cabinet 1750 mm width, 1850 mm height, 1000 mm depth
with control cabinet 1960 mm wide, 1850 mm high, 1000 mm deep
Working height: 835 mm in the range 4-20 mm only without a guide ruler
Paint finish: RAL 7030 stone gray with RAL 1018 zinc yellow

Additional equipment:
1 digital display for motor. Grinding thickness adjustment
1 facility for oscill.
Abrasive belt utilization device for oscillating
Utilization of sanding belts to increase the service life of the sanding belts
and improve them of the surface finish through motor-driven sanding unit adjustment.
Connected load: 0.12 kW, 380 V, 3/N, 50 Hz

1 brushing and finishing device, for better surface finish, integrated in the basic machine.
Two special brush rollers 150 mm arranged one above the other
Diameter in synchronization function for feed.
Separate height adjustment
Brush rollers on precise carriage guides for wear correction.
1 pneumatic workpiece release device after brushing and finishing
Furnishings
Included:
1 piece of undriven roller conveyor as an inlet
1 piece of undriven roller conveyor as an outlet (without feets), length approx. 3 m