This disclosure relates to a striking tool for use in a high velocity, high impact energy comminution mill. The tool comprises an elongate body attachable at a first end to the comminution mill, and further comprises a wear resistant element for improving the wear resistance of the striking tool. The wear resistant element comprises a plurality of individual units.

This disclosure relates to a striking tool for use in a high velocity, high impact energy comminution mill. The tool comprises an elongate body attachable at a first end to the comminution mill, and further comprises a wear resistant element for improving the wear resistance of the striking tool. The wear resistant element comprises a plurality of individual units.

A chopper system and method for cutting crop material with a rotating first drum having first blades and a counter-rotating second drums having second blades. Blade pairs with one first blade and one second blade contact one another and cut the crop material. The blades of each blade pair contact one another for at least ten degrees of rotation. The blades can have beveled cutting edges, and the blade pairs can make bevel to bevel contact. The initial contact of the blade pairs during each rotation can form a swipe angle of 15 degrees or less. The initial contact of the blade pairs during each rotation can have the acute end of the first blade contact the second blade near the middle of the beveled edge. During each rotation, the acute end of the second blade can contact the back of the first blade.

A chopper system and method for cutting crop material with a rotating first drum having first blades and a counter-rotating second drums having second blades. Blade pairs with one first blade and one second blade contact one another and cut the crop material. The blades of each blade pair contact one another for at least ten degrees of rotation. The blades can have beveled cutting edges, and the blade pairs can make bevel to bevel contact. The initial contact of the blade pairs during each rotation can form a swipe angle of 15 degrees or less. The initial contact of the blade pairs during each rotation can have the acute end of the first blade contact the second blade near the middle of the beveled edge. During each rotation, the acute end of the second blade can contact the back of the first blade.

A material reducing machine includes a rotary reducing drum that is rotatable about an axis of rotation and defines a reducing boundary that extends at least partially around the axis of rotation. The material reducing machine includes an infeed conveyor for transporting material to a front portion of the rotary reducing drum and defines a conveyor plane. The material reducing machine includes a mill box at least partially surrounding the rotary reducing drum and including a mill box lid mounted generally above the rotary reducing drum. The mill box lid has an inlet edge positioned above a rear portion of the rotary reducing drum and an outlet edge positioned above the front portion of the rotary reducing drum. The mill box includes an infeed opening that is configured to receive material from a feed table and has an upper opening defined by the outlet edge of the mill box lid.

A material reducing machine includes a rotary reducing drum that is rotatable about an axis of rotation and defines a reducing boundary that extends at least partially around the axis of rotation. The material reducing machine includes an infeed conveyor for transporting material to a front portion of the rotary reducing drum and defines a conveyor plane. The material reducing machine includes a mill box at least partially surrounding the rotary reducing drum and including a mill box lid mounted generally above the rotary reducing drum. The mill box lid has an inlet edge positioned above a rear portion of the rotary reducing drum and an outlet edge positioned above the front portion of the rotary reducing drum. The mill box includes an infeed opening that is configured to receive material from a feed table and has an upper opening defined by the outlet edge of the mill box lid.

To improve the comminution of the plant material cut off by a mulching device, a mulching device is provided comprising a rotor which can be rotated in a direction of rotation by means of a shaft and has movable blades, and comprising, with respect to the movable blades, counter-cutting elements that are fixed to the device, that cutting edges of the counter-cutting elements directed opposite to the direction of rotation have a corrugated shape, wherein, in their direction of extension, in particular the counter-cutting elements have at least two convex portions with one concave portion arranged therebetween. The cutting unit can be formed in one piece without any connection.

To improve the comminution of the plant material cut off by a mulching device, a mulching device is provided comprising a rotor which can be rotated in a direction of rotation by means of a shaft and has movable blades, and comprising, with respect to the movable blades, counter-cutting elements that are fixed to the device, that cutting edges of the counter-cutting elements directed opposite to the direction of rotation have a corrugated shape, wherein, in their direction of extension, in particular the counter-cutting elements have at least two convex portions with one concave portion arranged therebetween. The cutting unit can be formed in one piece without any connection.

A vegetable knife includes a pulverizing coring pin for pulverizing a core of a vegetable, where the pulverizing coring pin can be a generally cylindrical tube. The pulverizing coring pin can define one or more pulverizing tubes that extend from a first end of the pulverizing coring pin to a second end of the pulverizing coring pin opposite the first end. The vegetable knife also includes at least one vegetable shaping blade that extends radially outwardly from the pulverizing coring pin, where the at least one vegetable shaping blade supports the pulverizing coring pin at a location generally central with respect to the vegetable knife. The vegetable knife may also include an outer flange for coupling the vegetable knife to a rotatable cutting assembly. The vegetable shaping blade can be connected between the outer flange and the pulverizing coring pin for supporting the pulverizing coring pin.

A vegetable knife includes a pulverizing coring pin for pulverizing a core of a vegetable, where the pulverizing coring pin can be a generally cylindrical tube. The pulverizing coring pin can define one or more pulverizing tubes that extend from a first end of the pulverizing coring pin to a second end of the pulverizing coring pin opposite the first end. The vegetable knife also includes at least one vegetable shaping blade that extends radially outwardly from the pulverizing coring pin, where the at least one vegetable shaping blade supports the pulverizing coring pin at a location generally central with respect to the vegetable knife. The vegetable knife may also include an outer flange for coupling the vegetable knife to a rotatable cutting assembly. The vegetable shaping blade can be connected between the outer flange and the pulverizing coring pin for supporting the pulverizing coring pin.