Abstract: A mulcher apparatus includes a tractor and a mulcher unit provided to the tractor. The mulcher unit includes a tooth assembly with a holder and a cutter element with a cooperating notch portion and cross bar arrangement. The notch portion can be retrofit to existing holder arrangements. The cutter element may include various features, to enhance cutting efficiency. For example, the cutter elements may include a double-ended structure, a relatively wide serrated cutting edge at one or both ends, carbide coatings, layers or inserts, etc.

Abstract: A cutter head includes first and second mounts that are configured to allow coupling with various motive equipment, such as a tractor or an excavator. The first mount may be mounted on the rear of the cutter head chassis for coupling with the tractor, while the second mount may be mounted on the top of the cutter head chassis for coupling with the excavator. A pressure gauge includes an adjustment arrangement such that the position of the display of the pressure gauge can be adjusted for viewing of the operator of the tractor or excavator. The cutter head may include a cooler assembly that works off or in conjunction with a primary cooler assembly of the tractor or excavator. The cutter head may include an excavator linkage equipped with a bushing assembly.