A wear cap for use on an earth working roil for mining, construction and public works machines such as crushers, surface miners, milling machines and the like includes a working end and a rear mounting end. The rear mounting end including a pair of top and bottom rearwardly extending protrusions, a retainer, and a cavity having side stabilizing surfaces and a top and bottom rail or groove to support the wear cap on a holder mounted to the earth working roll.

A roller for a roller press has a core formed with axially opposite outer ends, an axially central passage, and axially spaced and radially extending inlet and outlet passages extending radially at the outer ends from the central passage and opening radially outward at an outer surface of the core. A coolable jacket surrounds the core, and respective manifold rings are mounted on outer ends of the core, cover inlet and outlet passages at the end faces of the jacket. Respective L-shaped connecting passages each have an axially extending segment opening into a respective one of the cooling passages of the jacket and a radially extending segment opening into the respective groove.

A grinding roll including a roll body having a cylindrical outer surface extending axially between a pair of opposite ends and a side groove formed at each end of the roll body. The side groove includes a support shoulder recessed from the cylindrical outer surface and/or from surfaces of the opposite ends of the roll body. The grinding roll includes an edge ring including a plurality of spaced receiving cavities and a plurality of wear members. Each wear member is received and retained in at least one of the receiving cavities of the edge ring. The wear members are positioned along the edge ring to define an edge of the grinding roll, and the edge ring is received within each side groove. The wear members are arranged to provide a wear protecting surface which is angled in relation to the cylindrical outer surface of the roll body. The angled wear protecting surface prevents excessive build-up of material on the grinding roll and reduces the need for maintenance.

The disclosure relates to a roller crusher having two generally parallel rollers arranged to rotate in opposite directions, and separated by a gap, wherein at least one of the rollers has a flange at an end thereof, wherein the roller crusher further comprises a material removal device, comprising: a rotatable cutter unit having a plurality of cutter elements arranged tangentially about the rotatable cutter unit; and a rotation device arranged to rotate the rotatable cutter unit, wherein the rotatable cutter unit is arranged at an end of a roller having a flange and thereby, when being rotated by the rotation device, at least partially allow cutting away material accumulated on the flange and/or on the envelope surface at an end portion of the roller adjacent the flange.

The invention relates to a roller crusher having two generally parallel rollers arranged to rotate in opposite directions, towards each other, and separated by a gap, each roller having a first end and a second end. The roller crusher comprises a flange attached to at least one of said ends of one of said rollers. The flange extending in a radial direction of said roller, and has a height above an outer surface of said roller which is sufficient to extend across said gap substantially along a nip angle of said roller crusher.

A wear-resistant element for partially inserting into a recess in the surface of a wear surface of a comminuting device. The wear-resistant element has a fastening region, which is connectable to the recess in the surface of the wear surface and a wearing region, which protrudes at least partially from the surface of the wear surface. The fastening region includes a material that is less wear-resistant than the material of the wearing region, wherein the wearing region extends beyond the fastening region at the level of the wear-resistant element.

A crushing segment forming part of a crushing roll of a roll crusher, the segment including a main body to mount at least one crushing tooth. A filler material is interposed between respective first and second mount faces provided at the tooth and main body so as to provide enhanced surface area contact between the tooth and segment and increase the capability of the tooth and segment assembly to withstand significantly high loading forces during use.

The present invention relates to a crushing roll for a roll-type crusher has a shaft with at least one groove extending in the axial direction on its lateral surface, to receive formed elements. The formed elements serve to retain the crushing shells, for which purpose the formed elements form a form-interlockingly engaging combination with the groove in the shaft, in the radial direction. A form-interlockingly engaging combination in the radial direction is understood here to signify means of blocking of movement of the formed elements in the radial direction of the shaft. In this way, it is possible to anchor the crushing shells in the grooves by means of the formed elements. Advantageously, also axial forces from the crushing shells can be transmitted to the shaft via the formed elements in the grooves, which forces can thereby be borne by the shaft, given that a high pressing force can be transmitted via the combination of a crushing shell and formed element, resulting in high holding friction between the molded element and the shaft.

A cutter includes a first end configured to engage an object along a dominant force vector, a second end opposite the first end, a first side, and a second side opposite the first side. The cutter further includes an outer side, an inner side, and an aperture extending from the outer side to the inner side along a fastener axis that is substantially perpendicular to the dominant force vector. The cutter also includes a cutter tip on the first end and having a first cutting edge, a second cutting edge, and a third cutting edge, the cutting edges defining therebetween a cutting face. The cutting face defines a cutting swath having a width between the first cutting edge and the second cutting edge as the cutter rotates with the apparatus. No portion of the first side or the second side extends outside the width of the cutting swath.

A cutter wheel includes a drive plate having a first side and a second side opposite the first side. A wear plate is coupled to the first side of the drive plate for rotation with the drive plate. First and second cutters are coupled to the wear plate such that the wear plate is at least partially between the first side of the drive plate and the first and second cutters. Each cutter includes a cutter tip and a fastener-mounting aperture. A first fastener extends through the fastener-mounting aperture of the first cutter, through a first fastener-receiving aperture in the wear plate, and into a first aperture in the drive plate. A second fastener extends through the fastener-mounting aperture of the second cutter, through a respective fastener-receiving aperture in the wear plate, and into a respective aperture in the drive plate.