Heesemann Sanding & Panel Sizing

Raw, Veneer and Lacquer Sanding Machines

 



Thinner veneers and thinner lacquer coatings on warped support plates with tolerances require the utmost care during an automatic sanding process. In spite of these existing tolerances an even pressing-on of the sanding belt on the whole surface of the workpiece should be guaranteed up to the edge area.


Thanks to the CSD® pressure beam system we are in a position to adjust the press-on force of each individual press-on element in an accurate way in accordance to the size of the workpiece surface laying under this press-on element. Fully automatic and dynamic - without any intervention of the operator. By this a regular pressure buildup up to the edge area is ensured - independent from the workpiece shape. If slightly overlapping edge bandings should be smoothened, the press-on force of the press-on elements in the edge area could be increased - and this also in a asymmetric manner.


Encapsulated integrated electromagnetis guarantee maintenance-free press-on elements over many years as these only have got one unique circuit switch - the lifting armature.

The press-on elements are soft-running and have a precise bearing and could compensate big thickness tolerances of max. 2 mm.


CSD® pressure beam with perfectly adapted edge pressure
Pneumatic pressure beam with full
edge pressure

The picture shows the function principle of the CSD® pressure beam with a simulated passing through of the workpiece through the machine. The height of the green press-on elements symbolizes the press-on force which adapts dynamically to the surface of the workpiece which is laying under the respective press-on element. The CSD® pressure beam is maintenance-free.

This picture shows the common sanding technique with pneumatic pressure cylinders. It is impossible to make an exact pressure dosage of each individual segment of the pressure beam with compressed air. It is only possible to enter 100 % (total pressure) or 0 % (no pressure) on the individual pressure beam segment. Consequently, a sanding through cannot be avoided in critical areas such as edges resp. openings in the workpieces. Moreover, the pneumatic pressure beams are subject to maintenance due to pollutions caused by oil, water or dust in the compressed air.

 
             
 
 
MFA 6
Automatic multipurpose surface sanding machine

Everyday's processing today:

Today, a variety of demands are made on a modern sanding centre for surface sanding, e. g.:

  • Veneer, lacquer and foil sanding
  • Calibration and finish sanding of solid wood
  • Processing cross and longitudinally veneered parts
  • Alternating small and large series production
  • Sanding warped and differently tolerated parts
  • Different workpiece shapes, e.g. round, oval, rectangular and asymmetric
  • Processing different wood and lacquer types

Important criteria must be met:

  • High surface quality by means of an effective sanding procedure
  • High degree of sanding security, no sanding through even with only 1 workpiece
  • Shortest set up times and simple operation
  • An almost maintenance free construction
  • Low noise emission and energy consumption

It contains proven characteristics as follows:

  • The worldwide unique CSD®-pressure beam system with the steplessly adjustable pressure regulation of each individual sanding pad, an advantage for the sensitive edge area
  • The 32 mm precision sensing of the workpiece contours for precise pressure regulation
  • The tolerance compensation of 2 mm and more by the elastic pressure beams
  • The cross sanding method for thorough sanding of the workpiece surfaces
  • Sanding belt drives allowing the belt speeds for lacquer or wood sanding to be changed in steps or continuously
  • A central brush height adjustment from the belt changing side
  • A constant working height of the transport table
  • A conveniently arranged, graphic operating terminal which assists the user perfectly: a first-class sanding result at a push of the button
  • A perfected, energy saving sanding and transport belt blasting and cleaning system
  • A solid machine construction combining precision and longevity

It also offers innovation as follows:

  • A proven industrial machine technology, interesting for craftsmen, architectural millworks and industry due to its compact design and attractive price
  • A suitable offer of different motor ratings to meet various production requirements
  • A NC controlled height adjustment

Click on image to view examples of machine construction series MFA6

Click on image below to view Modules

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MFA 6 Impression
Automatic multipurpose surface sanding machine
 

Impressive: The new generation of sanding machines from Heesemann - the Impression line from the MFA 6 product range. Proven industrial machine technology, made for craftsmen, architectural millworks and industry. With a compact design and an attractive price. A perfect sanding result, consideration of all possible specific application purposes - the most advanced sanding technology in the world - With our selection out of the MFA 6 - range: MFA 6 - Impression -line
Your advantages for a decision to buy a Heesemann sanding machine:
Sanding technology: The worldwide unique CSD ® pressure beam system with the steplessly adjustable pressure regulation of each individual sanding pad, a big advantage in the sensitive edge areas. Maintenance free electromagnetic pressure beams, no compressed air.
32 mm precision sensing of the workpiece contours for precise pressure regulation. Thickness tolerance compensation of max. 2 mm

Transport table:
Bearings:
Drives:
Operation:

Motors:
constant working height of the transport table.
maintenance free, lubricated for life
via poly -V- belt drives
Conveniently arranged, graphic operating touch screen terminal with programme memory: a first class sanding result at a push of the button.
a suitable offer of different motor ratings to meet various production requirements

All machines are equipped with:
  • Feed speed via frequency control from 5 - 15 m/min.
  • CSD® - system with sensors of 32 mm roller spacing
  • Front roller for calibration, switching by operating terminal
  • Support rollers at machine infeed
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KSA 8
Automatic multipurpose surface sanding machine for working widths 1600 - 2200 mm


Modular construction for versatile jobs

The machine concept of the KSA 8 is universal in its use as far as the working widths and machine equipments are concerned, for example:

  • in window industry for calibrating, fine sanding and lacquer sanding of mounted window casements
  • in panel industry for industrial sanding of large veneered panels
  • in interior companies for suppliers of wall decorations and conference tables
  • in office furniture industry for sanding of desk tops
  • in piano industry for treatment of piano tops

The series KSA 8 as a sanding line with one machine sanding from below and one sanding from top reduces the handling costs required for big workpieces.

Machine Features

A regular surface is obtained by the cross sanding system. Raised fibres of veneer are cut off against the pore edges by means of the cross belt. For solid wood with annual rings of different hardness, washing out of the softer areas is avoided by the cross belt. Double tensioning cylinders on the longitudinal heads guarantee a regular belt tensioning even for wider sanding belts taking into account usual tolerances in belt length. Fine-balanced guiding rollers on the sanding heads minimize vibrations and render possible a regular sanding operation.

Operation

Machines are operated by graphic operating terminals enabling a central and simple adjustment of sanding parameters. A program memory ensures a fast machine conversion to different working tasks by storing values under a certain program number. A fault-finding-system enables the operator to find and solve quickly and directly machine errors and errors in operation.
Interfaces for controlling workpiece height, program number and feed speed secure a central linking of the machine to a host computer. An operating data acquisition module supplies upon request production data for an internal analysis. Optionally, an Industrial PC with Touch Screen display could be used thus providing additional control functions.

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UKP 20/22
Edge and profile sanding machines
   
         
   

The versatility of the UKP 22 machine derives from the following features:

  • Wood and lacquer sanding, edge chamfering and milling on one machine
  • Large swiveling and tilting range of the individual sanding units
  • Arrangement of the machine execution according to particular requirements
  • Central control of the individual units from the control panel
  • Line control system designed for the particular demands of a sanding machine
  • Pressure applied to panels by pressure bar - for rails, spring-mounted pressure rollers are used
  • Central adjustment of press-on and guiding elements
    Quick-change device for press-on tools for fast rearrangement of equipment
  • Computer controlled axis setting CNC



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