According to the form and use method of sanding tools, sanding machines are generally divided into 6 categories: roller sanding machine, disc sanding machine, belt sanding machine, brush sanding machine, combined sanding machine and special-shaped sanding machine.
Sander is a machine tool that sands and polishes the surface of parts and components with coated abrasives (sandpaper or belt). The sander can sands wooden components, particleboard, fiberboard, micro-veneer, etc., and softens the surface of polyester paint.
sander can not only process plane, but also process outer circle surface, inner hole surface and various arcs. Not only is it widely used in wood factories, furniture factories and toy factories, but also in vehicle factories and wooden mold workshops. The sanding machine has the characteristics of high processing efficiency, high smoothness and precision, and wide applicability. It is one of the necessary equipment for wood products and factories.

(I) roller sander:

roller sander winds emery cloth on the cylindrical surface of the roller to sand the parts. Machine tools can be divided into single-roll and multi-roll, manual feed and mechanical feed, single-sided sand cutting and double sand cutting, vertical and horizontal. Single roller is mostly used for the fixed thickness and coarse sand processing of square materials and jigging components below 400mm. Multi-roller is used for mass production, and the fixed thickness and fine sand are added for wide-width (800-2500mm) plates, split plates, plywood and flat frames.

disc sander is to paste sandpaper on the grinding disc, and sand the plane or curved surface of the workpiece through the rotation of the grinding disc. According to the installation position of the grinding disc, it can be divided into single disc and double disc, vertical and horizontal, and grinding tools in and below. In production, only 30% of the diameter of the grinding disc is usually used, which is suitable for furniture and wood mold manufacturing. This kind of machine tool production efficiency is low, less application.

(III) belt sander:

belt sander is to tension the endless abrasive belt on two or more pulleys. The rotation of the pulleys causes the abrasive belt to produce cutting movement. Realize the processing of parts. According to the structure, it can be divided into upper type and horizontal type, single belt and multi belt, manual feed and mechanical feed. The belt width is within 400mm for ordinary belt sander. More than 600mm for wide belt sander.
broadband sander is an efficient and highly white sanding equipment, which is widely used in sand cutting of large-format wood-based panels, panel furniture parts and solid wood to complete fixed-thickness sanding (that is, to ensure the working thickness and the surface finish of the workpiece). According to the structure form also has the single belt. Double abrasive belt. Many abrasive belts; The abrasive belt is above the worktable, the abrasive belt is below the worktable, or both the upper and lower sides; The feeding mode also has a crawler feed from the roller.

(IV) brush sander: