A mobile wood chipping system is disclosed. The mobile wood chipping system includes a trailer frame, a wood chipper and a dump box. The trailer frame includes at least one axle on which a set of wheels are mounted. The wood chipper, which is securely mounted on the trailer frame, includes a feeder horn and a discharge pipe. The dump box, which is pivotally mounted on the trailer frame, includes an open top and a door. The dump box can be moved between a horizontal position and a tilted position by a hydraulic piston attached to the trailer frame and dump box.

The present discloses is a replaceable threaded insert for mounting a knife assembly or knife holder to a chipping head. The replaceable threaded insert has a generally frustoconical shape allowing the insert to be slid in an opening of the chipping head. The inner portion of the insert is threaded. A knife holder may be positioned over the chipping head and a bolt may be inserted in an aperture of the knife holder and in the threaded inner portion of the threaded insert, thus attaching the knife holder to the chipping head.

Disposable cutting blades and method for producing disposable cutting blades with profiled cross sections for a device for chipping wood. The method includes heating a primary material of a hardenable material in a soft-annealed state having a worked surface to a temperature above room temperature, but below a conversion temperature Ac1, rolling the primary material to form a profile blank with at least one precisely gaged guide path in a base body in cross section and with an increased thickness of at least one edge region, a metal-removing working of at least one edge region in a longitudinal direction of the profile blank to form a cutting edge and to form scratching edges in a spaced manner directed perpendicularly to the cutting edge, and continuously hardening the edge regions of the cutting blade.

An implement that is a tool made entirely of wood used for pushing debris into the feeder of a wood chipper. The implement includes a handle long enough for the safe operation by an average sized human that is attached to a head. The head includes a flat paddle that is shaped to conform to the dimensions of the feeder of a wood chipper. The flat paddle has a bottom portion, a top portion and side portions. The top portion attaches to the handle. The bottom portion is what is fed into the feeder. The bottom portion includes a brush bar that extends outward from the flat portion perpendicularly in both directions. Two additional side brush bars are attached to each side of the flat paddle and likewise extend outwardly perpendicularly in both directions. The handle and brush bars can be attached with dado joints and wood glue or can be formed integrally without the need for the dado joints.

A comminuting unit for a comminuting device for comminuting feed material, in particular a knife basket, with a plurality of rod-shaped blade supports concentrically arranged about an axis, which at their ends are each rigidly connected with a support ring or supporting disc that are concentric to the axis. At least one of the blade supports has a receptacle for securing a knife assembly having a chipping blade, wherein the blades of all chipping blades have a common radial distance from the axis. Between the blade support and the knife assembly at least one adjusting device is provided, with which the radial distance is adjustable. The receptacle has a receiving strip and a clamping strip, which are mounted in axially parallel position detachably on the blade support, the knife assembly being tensioned against the receiving strip via the clamping strip.

An impact cutter blade and holder system is disclosed. The impact cutter blade and holder system includes: a cutter disk, a plurality of impact holders, and a plurality of impact cutter blades. The cutter disk has a central axis about which the cutter disk is configured to rotate. The plurality of impact holders are secured to the cutter disk. The plurality of impact cutter blades is secured to the plurality of impact holders.

There is provided a canter head. There is also provided a canter head including at least one reversible knife, as well as a reversible knife for a canter head.

Disclosed is a cutting tool mounted on a shaft rotating about an axis, including a body having first cutting inserts mounted with equal spacing at the outer periphery of the body, which first cutting inserts have a cutting edge extending across the width of the body at a predetermined peripheral radius from the axis; and second cutting inserts mounted with equal spacing adjacent the outer periphery on a first side surface of the body, which second cutting inserts have a cutting edge extending in an axial plane perpendicular to the axis. The cutting edge of each first insert extends up to a predetermined distance from the axial plane of the second inserts; and the cutting edge of each second insert preceding a first insert extends a predetermined radial distance outside the peripheral radius of the cutting edges of the first inserts. Also disclosed is a related apparatus.

A disc chipper for crushing lumpy feed material. The disc chipper has a crushing rotor driven by a drive unit, rotating about an axle, including a rotor shaft and a chipping disc connected in a rotationally fixed manner with the rotor shaft. The chipper disc includes chipping knives, which are transversely aligned in the disc plane to the rotational direction and which cooperate with stationary counter knives for the comminution of the feed material. The drive unit include a primary drive and a secondary drive, which drive the crushing rotor via a transmission, wherein the primary drive is in active operative connection with the crushing rotor during the crushing operation, and the secondary drive during the acceleration process or when readjusting the crushing rotor for purposes of maintenance and repair.

An impact cutter blade and holder system is disclosed. The impact cutter blade and holder system includes: a cutter disk, a plurality of impact holders, and a plurality of impact cutter blades. The cutter disk has a central axis about which the cutter disk is configured to rotate. The plurality of impact holders are secured to the cutter disk. The plurality of impact cutter blades is secured to the plurality of impact holders.