The various embodiments disclosed and pictured illustrate a hammer for comminuting various materials. The embodiments pictured and described herein are primarily for use with a rotatable hammermill assembly. The double end hammer includes a connection portion having a slot therein and two contact ends for delivery of energy to the material to be comminuted. The contact ends may be formed with a cavity therein. The contact ends may also be formed with an angle on the contact end periphery. The cavity and/or the angle on the contact end periphery may be used with hammers other than the double end hammers.

The various embodiments disclosed and pictured illustrate a hammer for comminuting various materials. The embodiments pictured and described herein are primarily for use with a rotatable hammermill assembly. The double end hammer includes a connection portion having a slot therein and two contact ends for delivery of energy to the material to be comminuted. The contact ends may be formed with a cavity therein. The contact ends may also be formed with an angle on the contact end periphery. The cavity and/or the angle on the contact end periphery may be used with hammers other than the double end hammers.

A mulching apparatus including: a housing including a front opening and an inner wall; a rotor mounted in the front opening of the housing adjacent to the inner wall; and a drive train for driving the rotor, the drive train including: a drive shaft connected to the rotor; a motor comprising a motor shaft; and a removable wear gear connecting the motor shaft and the drive shaft, wherein the wear gear is formed from a material that is softer than a material of the drive shaft or motor shaft.

An autogenous impact mill (10) is operative to size reduce friable material particles processed through operation of the mill. At least one impeller (58) rotatable within an interior area (44) of a housing (12) of the mill is operative to produce one or more air jets. The air jets are operative to suspend material particles using the Coanda Effect. Other particles moved by the air jets bounce off ricochet bars (74) and impact suspended particles so as to break and reduce the particles to a suitable size to pass through a screen (110) to an outlet opening (42).

A chip separator configured to disentangle clusters of chips in a collection tank is disclosed. The chip separator includes a horizontal plate having a first surface and a second surface opposite the first surface, a motor assembly coupled to the first surface of the horizontal plate; and a pulverizer operably coupled to the motor assembly and disposed away from the second surface of the horizontal plate by a distance. The pulverizer includes a base plate and a plurality of pulverizer attachments operably coupled to the base plate. The motor assembly is configured to rotate the pulverizer such that the plurality of pulverizer attachments of the pulverizer disentangles clusters of chips disposed in the collection tank.

A grinder includes a body having a first end, a second end defining an opening, and an interior surface defining an inner chamber extending from the opening at least partially towards the first end. The grinder also includes a chain positioned within the inner chamber. The chain includes a plurality of balls. The grinder further includes a motor coupled to the chain. The motor is configured to cause rotational or reciprocal motion of the chain within the inner chamber.

A grinder includes a body having a first end, a second end defining an opening, and an interior surface defining an inner chamber extending from the opening at least partially towards the first end. The grinder also includes a chain positioned within the inner chamber. The chain includes a plurality of balls. The grinder further includes a motor coupled to the chain. The motor is configured to cause rotational or reciprocal motion of the chain within the inner chamber.

A horizontally fed disk grinding system includes a tray coupled to a trailer for receiving bulk material. The system further includes a grind hub coupled to the trailer and a cutter disk coupled to the grind hub. The grind hub is structured to rotate about a grind hub axis and the cutter disk is structured to rotate about a cutter disk axis and about the grind hub axis. A grind ring is coupled to the trailer and is structured to slide to engage the grind hub during use. A plurality of plates are coupled to the tray and structured to oscillate to feed material from the tray to the grind hub and the cutter disk, where the material is reduced to particulate form. The grind hub further includes an outlet and a conveyor rotatably coupled to the trailer to convey the particulate material away from the outlet to a selected location.

A horizontally fed disk grinding system includes a tray coupled to a trailer for receiving bulk material. The system further includes a grind hub coupled to the trailer and a cutter disk coupled to the grind hub. The grind hub is structured to rotate about a grind hub axis and the cutter disk is structured to rotate about a cutter disk axis and about the grind hub axis. A grind ring is coupled to the trailer and is structured to slide to engage the grind hub during use. A plurality of plates are coupled to the tray and structured to oscillate to feed material from the tray to the grind hub and the cutter disk, where the material is reduced to particulate form. The grind hub further includes an outlet and a conveyor rotatably coupled to the trailer to convey the particulate material away from the outlet to a selected location.

An impact crusher for grinding and separating solid material has a base, a rotor on the base having an upright shaft defining an upright rotor axis about which the rotor is rotatable, and a drum fixed on the base, spacedly surrounding the rotor, and formed by a pair of generally semicylindrical drum shells fitted together at a plane including the rotor axis. An array of axially extending and angularly substantially equispaced replaceable ribs is provided on an inner surface of the drum. A plurality of impact hammers are angularly substantially equispaced around the rotor and orbitable past the ribs on rotation of the rotor.