Long belt sander
A long belt sander is a sanding machine used in woodworking and metalworking .
The long belt sander has a machine body with two strong side parts between which a horizontally movable and height-adjustable work table runs on rails. In the left side part there is a fixed, motor-driven roller, in the right side part there is a free-running, tensionable roller. The endless sanding belt runs over these rollers and is pressed onto the workpiece on the work table by a sanding shoe that can be moved parallel to the belt. This is done manually or pneumatically supported.
Above the sanding shoe guide there is usually a fixed work table in order to process small or, in the case of long tables, narrow long workpieces on the part of the sanding belt running above. To do this, the upper belt cover can be folded up.
In woodworking, the device is used for sanding wooden surfaces and panel material. In modern carpenter's shops there are often no longer long belt sanders, as many (but not all) operations are carried out more easily and more accurately on the more modern wide belt sanders .
In metalworking, the long-belt grinding machine is primarily used for surface refinement and for reworking for welding work. Thanks to the flexible belt tension, weld seams can be sanded off quickly and evenly.
In double belt grinding machines, two belts run in parallel. They enable the grinding of weld seams and the polishing of the surface directly afterwards without changing the belt with different grain sizes of the grinding belts, pre- and post-grinding or with a belt for polishing.
Individual evidence
- ↑ a b Wolfgang Nutsch and others; Expertise for joiners , 12th edition, Verlag Europa-Lehrmittel OHG, Wuppertal 1980, pp. 293-294, ISBN 3-8085-4011-7