The invention provides a sanding system comprising a detachable sanding pad with a plurality of sides adapted for different degrees of sanding retained in contact with a backing plate by teeth penetrating into opposed sides of the sanding pad.

A belt sander (2) comprising a housing (4) and having a lower sanding surface (40) and an upper sanding surface (42) opposite the first sanding is disclosed. The sander has a larger rear roller (32) driven by a motor (22), a front roller (34) of smaller diameter than the rear roller, and an endless sanding belt (38). A guard (48) is pivotable between a lowered position preventing access to the upper sanding surface and a raised position allowing access to the upper sanding surface. A handle (12)...

A Sanding machine for sanding of workpieces including relief formations passed in a direction of conveyance through the sanding machine, the sanding machine comprising sanding heads extending transverse to the direction of conveyance of workpieces passed through the machine to lengthwise sand the workpieces, and sanding drums staggered along the direction of conveyance of workpieces passed through the machine, each of the sanding drums having a rotation shaft aligned substantially parallel with ...

A sanding tool for grinding a workpiece to be worked has a housing in which an electric motor is accommodated and a grinding assembly operatively connected to an output shaft of the electric motor to be swingable to perform a grinding operation, and the grinding assembly comprises a driving plate operatively connected to the output shaft of the electric motor to be swingable, a grinding plate attached to the driving plate to grind the workpiece and a member for operatively connecting the driving...

A variable reciprocating and rotating sanding apparatus comprises a drive shaft that is partially surrounded by first and second cams. The cams cooperate to form a cam track. A cross shaft is connected to the drive shaft and extends outwardly therefrom. The cross shaft is disposed in the cam track and serves to drive the cams in response to rotation of the drive shaft. An adjustable housing surrounds the cams and supports a sanding surface. The housing comprises a tapered housing and an expansio...

A hand sanding block is formed with two blocks, which may be of equal or unequal lengths, of like cross section and disposed in coplanar relationship with opposed inner ends. The blocks are freely movable towards away from each other, event to the point of total separation, by means of a pair of spaced dowel pins projecting from one block for telescopic engagement in corresponding spring loaded sockets in the other block and are normally held apart in spaced relationship by the springs in the so...

An abrasive paper sheet holder having a base provided with clamping shoulders formed in a pair of opposed side edges thereof. A handle member is detachably secured over a rear surface of the base. The handle member has opposed flexible flange walls for clamping opposed end edge portions of an abrasive paper sheet which is positioned over a front working surface of the base with the edge portions of the paper sheet extending over the clamping shoulders. The handle member applies a wedging pressur...

A hand-held, manually-operated, sanding tool for use with a replaceable sheet-like abrasive material, such as sandpaper, includes a base member and clamping mechanisms pivotally connected with opposed ends of the base member. The clamping mechanisms include tensioning members arranged to slidably engage angled contact surfaces provided on the ends of the base member opposite the clamping mechanisms to tighten the sheet-like abrasive material as it is installed on the tool.

A sanding machine (1; 300) comprising a support structure (2; 302) for the piece (3) to be processed and a sanding unit (4) for the piece (3) itself. The sanding unit (4) comprises a frame (40) that supports a winding element (8) cooperating with kinematic means (9) suitable for setting it in motion according to a closed ring configuration on a plane (.pi.1) substantially parallel to the plane (.pi.2) defined by the support structure (2; 302) and a plurality of abrasive elements (10) combined wi...

A sanding station for a belt sanding machine includes at least an endless sanding belt guided over deflection rollers and a pressure segment belt circulating within the sanding belt for pressing the sanding belt against the workpiece. The running direction of the pressure segment belt is oriented transversely to the running direction of the sanding belt.