Promac HDM Series: Heavy Duty Forestry Mulcher
Promac Equipment’s HDM Heavy Duty Forestry Mulcher is the go-to choice for wildland and forestry contractors with 13-30+ ton excavators. Built on western forestry expertise, it offers unmatched power, durability, and serviceability, lasting 20+ years. This mulcher is trusted for heavy-duty work across North America’s mountains and rangelands.
About the Product
Product Features
Available in 36”, 48”, 60” inch cutting widths, the HDM’s upsized quad and double-carbide tooling options, bent axis piston 80cc or 107cc motor options, and 20” inch drum diameter offers undeniably consistent, fast and heavy-duty mulching action. Reinforced and replaceable wear shoes, and the extra robust boxed-in construction, heavily utilizing 100,000 PSI steel, means you can mulch each tree straight to the ground as fast as the job requires, and better process the mulch on the ground to as fine as the job requires. The easy-to-remove panels to thoughtful service areas means faster maintenance and maximum up time. Some notable application types for this attachment are forest/range conservation, right-of-way maintenance, and industrial site preparation/maintenance.
- “Fixed Tooth Rotor” Drum Type
- Flat-Top Bracket
- Bracket Mounted Pusher Pad (optional)
- Quick-Change or Pin-Type Bracket (optional)
- Quad or Carbide Tooling (optional)
- Fixed or Variable Displacement Motor (optional)
- 20” Front Exposed Drum
- Easily Accessible Service Points
- Replaceable Wear Shoes
- Fully Boxed-In Construction
Product Specs
Model
HD3680B
HD3680B-C
HD48107B
HD48107B-C
HD60107B
HD60107B-C
Dimensions
62"x 49"x 59"
62"x 49"x 59"
74"x 49"x 59"
74"x 49"x 59"
86"x 49"x 59"
86"x 49"x 59"
Excavator Size:
13-20 tons
13-20 tons
20-30+ tons
20-30+ tons
22-30+ tons
22-30+ tons
Cut Width
36"
36"
48"
48"
60"
60"
Avg. Flow Range
32-36 GPM
32-36 GPM
40-44 GPM
40-44 GPM
40-44 GPM
40-44 GPM
Min. Weight
2600 lbs (w/ Flat Top Bracket)
3000 lbs (Estimated w/ Full Bracket)
2900 lbs (w/ Flat Top Bracket)
3300 lbs (Estimated w/ Full Bracket)
3200 lbs (w/ Flat Top Bracket)
3600 lbs (Estimated w/ Full Bracket)
Min. Pressure
4000 psi
4000 psi
4000 psi
4000 psi
4000 psi
4000 psi
Std. Motor Size
80 cc
80 cc
107 cc
107 cc
107 cc
107 cc
Std. Motor Type
Fixed Displacement
Fixed Displacement
Fixed Displacement
Fixed Displacement
Fixed Displacement
Fixed Displacement
Sugg. Drum Speed
2200 RPM
2200 RPM
2200 RPM
2200 RPM
2200 RPM
2200 RPM
Promac Equipment
Forged in the heart of western forestry over five decades, Promac Equipment designs and manufactures premium mulchers, masticators, and cutters built to thrive in the toughest vegetation management conditions. Known across the industry for uncompromising quality and performance, Promac Equipment products are engineered to keep operators working—not fixing. No gimmicks. No cheap features. Just rock-solid reliability that stands up to the harshest environments. Proudly based and built in British Columbia, Canada—where serious forestry demands serious equipment.
Our warranty policy lasts 30 days. If 30 days have passed since your purchase, we can’t offer you a full refund or exchange.
Warranty PolicyAt Forge Attachment Company, we strive to provide efficient and reliable shipping for all our heavy equipment attachments. Please read the following shipping policy to understand how your order will be processed and delivered.
Shipping PolicyWe understand that sometimes products may not meet expectations or requirements. To ensure a positive shopping experience, we’ve outlined our Refunds & Returns Policy.
Returns Policy