A replaceable work part for a jaw assembly of a demolition tool is disclosed. The work part (10) comprises a base (12) and a tooth portion (14) provided on an upper side of the base (12). A plurality of mounting legs (16, 18) extend downward from the base. Each mounting leg defines a recess (20, 22) and is configured to engage a corresponding mounting structure formed on a jaw of the jaw assembly. The work part (10) is mounted to the jaw by being inserted into the same from above and sliding the same onto the jaw in a sliding direction to engage the mounting legs (16, 18) with the mounting structures of the jaw. In this state, locking members are inserted between the work part (10) and the jaw and secured to the work part (10) to restrict movement of the work part (10) in the direction opposite to the mounting direction.

A replaceable work part for a jaw assembly of a demolition tool is disclosed. The work part (10) comprises a base (12) and a tooth portion (14) provided on an upper side of the base (12). A plurality of mounting legs (16, 18) extend downward from the base. Each mounting leg defines a recess (20, 22) and is configured to engage a corresponding mounting structure formed on a jaw of the jaw assembly. The work part (10) is mounted to the jaw by being inserted into the same from above and sliding the same onto the jaw in a sliding direction to engage the mounting legs (16, 18) with the mounting structures of the jaw. In this state, locking members are inserted between the work part (10) and the jaw and secured to the work part (10) to restrict movement of the work part (10) in the direction opposite to the mounting direction.

A jaw assembly for a demolition tool is disclosed. The jaw assembly may have a support portion centrally disposed on a second jaw. The support portion may have a first contact surface and an aperture disposed thereon. A work plate may be mounted on the support portion and may have a plate member in abutting contact with the support portion. The work plate may also have a tooth member and a boss extending in a direction opposite to the tooth member. The boss may be engaged to the aperture. The jaw assembly may have a pair of seating portions disposed on the second jaw, each seating portion having a slot. The jaw assembly may also have a work module mounted in each seating portion. The work module may have a base, a tooth, and a mounting element extending in a direction opposite to the tooth and engaging the seating portion.

A jaw assembly for a demolition tool is disclosed. The jaw assembly may have a support portion centrally disposed on a second jaw. The support portion may have a first contact surface and an aperture disposed thereon. A work plate may be mounted on the support portion and may have a plate member in abutting contact with the support portion. The work plate may also have a tooth member and a boss extending in a direction opposite to the tooth member. The boss may be engaged to the aperture. The jaw assembly may have a pair of seating portions disposed on the second jaw, each seating portion having a slot. The jaw assembly may also have a work module mounted in each seating portion. The work module may have a base, a tooth, and a mounting element extending in a direction opposite to the tooth and engaging the seating portion.

A crusher for cylindrical core samples has two oscillating wear plates. Each wear plate has an angled introductory portion, which open to a mouth sufficiently large to receive core samples having diameter above 100 mm. Each wear plate has at least one intermediate surface extending between each angled introductory portion and a curved central portion of the wear plate.

A crusher for cylindrical core samples has two oscillating wear plates. Each wear plate has an angled introductory portion, which open to a mouth sufficiently large to receive core samples having diameter above 100 mm. Each wear plate has at least one intermediate surface extending between each angled introductory portion and a curved central portion of the wear plate.

A replaceable tip for a demolition tool tip may include a first sidewall having a first contact side; a second sidewall having a second contact side; and a center wall connecting the first sidewall and the second sidewall. The center wall may have a third contact side provided with a recess, the recess may have first and second abutment surfaces, and the third contact side may have a third abutment surface adjacent the recess. A channel may be defined by the first, second and third contact sides, and the channel may be configured to receive an adapter of the demolition tool.

A replaceable tip for a demolition tool tip may include a first sidewall having a first contact side; a second sidewall having a second contact side; and a center wall connecting the first sidewall and the second sidewall. The center wall may have a third contact side provided with a recess, the recess may have first and second abutment surfaces, and the third contact side may have a third abutment surface adjacent the recess. A channel may be defined by the first, second and third contact sides, and the channel may be configured to receive an adapter of the demolition tool.

The invention relates to an apparatus for comminuting of material The apparatus comprises a first conveyor structure (CI) with a first conveyor surface (B1), a second conveyor structure (C2) with a second conveyor surface, and in which apparatus the first conveyor surface (B1) and the second conveyor surface (B2) are set facing each other. The conveyor surfaces (B1, B2) are arranged to define a comminuting space (GS) in the apparatus, The apparatus has means (MIA, M2A) for bringing the conveyor surfaces in a movement in the direction of movement D where the two conveyor surfaces (B1, B2) placed to face each other are arranged to move from a first end (E1) of the conveyor structures towards a second end (E2) of the conveyor structures. The conveyor surfaces positioned to face each other are placed in a convergent manner so that the gap between the conveyor surfaces (B1, B2) narrows when examined in the movement direction (D) of the conveyor surfaces, so that the advancing movement of the conveyor surfaces is arranged to bring about compression in the material being comminuted. In the invention, the conveyor surfaces (B1, B2) are in a double-converging manner so that in addition to said convergence in the movement direction, the conveyor surfaces are additionally placed in a convergent manner so that the gap between the conveyor surfaces (B1, B2) also narrows in the transverse direction (TD) in relation to the movement direction, said comminuting space (GS) thus becoming double-converging.

Heavy-duty material processors (e.g., shears, concrete crushers) include a jaw that pivotally connects to another jaw. A hydraulic cylinder extends between the jaws to open and close the jaws in a shearing motion. Cutting/shearing/crushing blade inserts mount to detachable blade holders, which in turn mount to one of the jaws. Wedge blocks securely and detachably attach the blade inserts to the remainder of their associated jaw, and rely on force-amplifying wedge surfaces to ensure a secure attachment. The detachable blade holders may include lateral flanges that extend across an otherwise exposed face of their respective underlying jaw bodies to protect the jaw bodies during use. A blade on one of the jaws is laterally adjustable, which helps to free a jam if one of the jaws gets jammed into the space between blades in the other jaw.