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.

A cable cutter includes stationary and moveable clamps, each comprising a respective pivot opening and a cutting edge spaced from the pivot opening. A pivot joint connects the clamps to allow the movable clamp to pivot about a pivot axis relative to the stationary clamp. The pivot joint includes a threaded connector having a head and a shank extending from the head along the pivot axis through the pivot openings in the clamps. A collar has opposing faces and an opening extending through the collar. A nut is threaded on the shank and the clamps are sandwiched between the head and the collar with the head adjacent one of the clamps. The collar is engaged to rotate with the shank the about the pivot axis.

An example cutting head for a hydraulic power tool may include a first jaw that includes a first ear configured with a slot for receiving a corresponding ear. The second jaw includes a second ear with a third ear bore that aligns in between a first ear bore and to a second ear bore of the first ear when the second ear is coupled in the slot of the first ear. The cutting head further includes a spring-biased flange coupled to a blade mounted to the first jaw and a retained coupled at a fixed position to a blade mounted to the second jaw. The retainer is configured to receive the flange during a cutting action such that the flange prevents the blades from shifting out of alignment during the cutting action.

An example shearing head includes a first member and a second member being rotatable about a pin. The first member has a shearing surface forming a substantially right angle with a first lateral surface of the first member. The second member has a shearing surface forming a substantially right angle with a second lateral surface of the second member. The second member includes a first distal surface and a second distal surface forming a substantially right angle. The first distal surface and the second distal surface are substantially perpendicular to the second lateral surface. The second member includes a third lateral surface opposing the second lateral surface and a retainer is attached to the second member. A first surface of the retainer contacts the first distal surface, a second surface of the retainer contacts the second distal surface, and the third lateral surface contacts a third surface of the retainer.

A shearing apparatus in accordance with some example embodiments includes a housing forming a stationary die pocket and a movable die pocket into which dies can be positioned. A force transmitting apparatus moves the movable die relative to the stationary die to shear a workpiece. The dies can be removed from the housing by disengaging a die engaging mechanism and an end stop assembly.

As shearing blades of a first jaw portion, a shearing machines includes: a tip blade; a pair of first parallel shearing blades bent at an obtuse angle to the biting direction of the tip blade and disposed both sides of the blade width; and a pair of second parallel shearing blades bent at an obtuse angle to an attaching portion of the first parallel shearing blades and disposed on both sides of the blade width. As a tip blade, the shearing machine includes: a point blade a pair of tip tapered blades disposed on both sides of an end portion and whose blade width is increased toward the rear end; and a pair of tapered blades bent at an obtuse angle to an attaching portion of the rear end portion of the tip tapered blades and disposed toward the first parallel shearing blades.

A cutting head for a power tool. The cutting head comprises a pivot pin, and a first jaw and a second jaw each disposed for rotation about an axis defined by the pivot pin. The first jaw comprises a first blade mounting surface and a first ear having a first ear surface. The second jaw comprises a second blade mounting surface and a second ear having a second ear surface for rotational engagement with the first ear surface. The cutting head further comprises a first blade mounted on the first blade mounting surface and a second blade mounted on the second blade mounting surface. The first blade mounting surface, the second blade mounting surface, the first ear surface, and the second ear surface are substantially co-planar, and during a cutting action, the jaws rotate about the axis.

A cutting head for a hydraulic power tool includes a first jaw that includes a first ear configured with a slot for receiving a corresponding ear. The second jaw includes a second ear with a third ear bore that aligns in between a first ear bore and to a second ear bore of the first ear when the second ear is coupled in the slot of the first ear. The cutting head further includes a spring-biased flange coupled to a blade mounted to the first jaw and a retained coupled at a fixed position to a blade mounted to the second jaw. The retainer is configured to receive the flange during a cutting action such that the flange prevents the blades from shifting out of alignment during the cutting action.