Edge sanding machine

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An edge sanding machine is a sanding machine with an endless sanding belt that runs over two vertical rollers. It is used for woodworking, especially for sanding wooden edges and veneer edges.

Applications

The edge sanding machine is particularly well suited to improve the surface quality of panel-shaped components, beams, frames and molded parts made of solid wood or wood with veneered surfaces by sanding . Inclined, straight or curved edges can be processed. With a sufficiently wide sanding belt, solid wood drawers can also be fitted.

Safety instructions (for man, machine and workpiece)

When sanding on edge sanding machines, the processing force of the machine does not act against the workpiece as is the case with a sliding table saw , but in the direction of the belt movement. For this reason, particularly small workpieces or workpieces to be machined on the front face must absolutely be guided along a stop attached to the work table when they are fed to the grinding belt. Otherwise the workpiece can fly away and damage or injure itself, parts of the environment or, in the worst case, people in the room. Only parts that can be safely held and guided may be processed. When moving the workpiece towards the sanding belt, make sure that you do not have a finger between the workpiece and the workpiece table stop. This can lead to crushing of the hand and to the workpiece being sharpened at an angle. The belt grinder can permanently lead to serious health damage due to dust and noise emissions. It is therefore important to ensure that the extraction system is working properly and that hearing protection is worn when working. In order not to damage the machine and the workpiece, woodworking must only be started when the machine has reached its full speed. It should be clear that unpleasant abrasion injuries can result from direct physical contact with the running sanding belt. The edge sanding machine is used for the surface treatment of wood and is not suitable for defining shaping. It is therefore important to ensure that an edge is not sanded several centimeters away. Firstly, this is expensive because new sanding belts have to be bought too early, and secondly, there is a risk of fire due to the build-up of friction energy between the workpiece and the sanding belt. Therefore saw or plane again before sanding.

Safety devices

  • (Except for the work area) completely encapsulated sanding belt
  • The sanding unit can be held securely in every possible working position with a stable central clamp
  • Flow-favorable design of the dust collection elements
  • Bimetal fuse that switches off the machine if it overheats
  • After switching off, the sanding belt stops in less than 10 seconds

Structure and setting options of the T48 edge sanding machine from Johannsen

An endless sanding belt runs over two rubberized sanding belt rolls. This oscillates by about 20 mm to guarantee streak-free sanding. The angle of inclination to the horizontal support table (also the workpiece table) can be adjusted together. The angle of inclination can be continuously adjusted from 90 ° to 135 ° (between the sanding belt and the support table). To do this, the grinding arm clamping (aggregate clamping) is first released and then the desired angle is set on the grinding arm inclination setting using the handwheel spindle. The angle that can be read on the grinding arm clamp is only a guideline and quite inaccurate. Before sanding, the sanding arm clamp must be tightened again by hand. The height of the support table is also adjustable so that the sanding belt can be used in its entire width. Uniform wear is also guaranteed by the fact that an electrically controlled sanding belt height oscillation can be switched on on the control panel. The workpiece table stop (grinding table stop) can be continuously adjusted from 45 ° to 135 ° (based on the angle between the stop and the sanding belt). The ability to adjust the stop and unit inclination angle means that almost all straight edges can be sanded at any angle. The support table remains in a horizontal position and the workpieces do not have to be held at an angle. Curves can be ground on the pulley. The T48 is only intended for sanding solid wood such as MDF, chipboard, blockboard or wood-veneered surfaces.