Promac LDM

High Production Mulcher

Light on weight but heavy on performance and durability.

With the same commitment to robust, reliable and efficient design that Promac is known for in our forestry-rated equipment, this new High Production Mulcher line incorporates 30 years of excavator-mounted brush cutter design and manufacturing experience, including the latest Promac innovation: our high speed Chip Production Rotor (CPR).  Combined with our optional hydraulically actuated rear door and our forward offset rotor design, the superior forward and rear exposure of the rotor to the foliage is very efficient for mulching standing trees, brush and even tall grass, leaving consistent chip-style mulch.


  • Available in three cut widths – 30”, 40” and 50”
  • Suitable for excavators as small as 5 ton and rubber tired excavators and Gradall
  • Robust and lightweight direct drive motor assembly
  • Equipped with the Promac “Chip Production Rotor”
  • Dual-face, chipper-style tooling with sharpening capabilities for longer life (convenient and cost effective)
  • Innovative “drop out” rotor frame design for ease of maintenance
  • Variable displacement motor for superior low speed torque and enhanced rotor speed recovery
  • Hydraulically actuated rear door
  • Hydraulic diverter valve system to enable operation of the rear door off the main hydraulic circuit
  • Severe Duty Kit that incorporates thick, hardened steel wear shoes, replaceable high strength drum liner and carbide-faced tooling
LDM 30LDM 40LDM 50
Excavator Size (tons)Min: 5 | Max: 10Min: 8 | Max: 15Min: 8 | Max: 18
Cut Width30"40"50"
Approx. Weight1200lb1400lb1600lb
ColorMetallic grey / blueMetallic grey / blueMetallic grey / blue
Motor size (cc)55v55v55v
Motor typePistonPistonPiston
Flow Min (gpm)151818
Flow pressure (psi)400040004000
Tooling typeChipper knifeChipper knifeChipper knife
Tooling number182226
  • Land clearing
  • Forest fire prevention
  • Road development and maintenance
  • Pipeline development and maintenance
  • Trail development and maintenance
  • Transmission line development and maintenance
  • Railway development and maintenance

One bracket does not fit all. Every piece of equipment has a different attachment apparatus. Promac offers a custom bracket manufacturing service for all of our brush mulcher and brush cutter customers. Contact us for a quote to design and manufacture a custom bracket that fits your exact needs.

Download Product Sheets: LDM 30 | LDM 40 | LDM 50