Promac R Series Excavator Forestry Mulcher & Masticator
•Manufactured Since 1978
• Built for 15–30+ ton excavators
• Easy-to-access serviceability
• Industry leading speed and output
About the Product
Product Features
For over 30 years, the R Series has been the go-to masticator for wildfire crews and forestry contractors who demand speed, reliability, and acres of results.
Built for 15–30+ ton excavators, this rotary disk cutter combines brute force with proven design. Every detail is engineered for:
Durability – field-tested since 1978 in the harshest terrain.
Serviceability – designed so crews can keep working, not waiting.
Versatility – from steep mountain slopes to open rangelands.
Speed – cut, mulch, and clear more ground every hour.
You’ll find the R Series earning its reputation in the mountains and rangelands of the West, trusted by contractors who can’t afford downtime. When the job demands toughness and output, the R Series delivers.
- Forestry-Proven Bearing System
- Direct Drive w/ Performance Coupler
- Integrated Pusher/Pivot Point
- Quick-Change or Pin-Type Bracket (optional)
- Enclosed Motor Housing
- Easily Accessible Service Points
Product Specs
Model
R36XM107H
R36XM107H-C
R52XM107H
R52XM107H-C
Dimensions
81"x 55"x 63"
81"x 55"x 63"
96"x 70"x 63"
96"x 70"x 63"
Excavator Size
15-20+ tons
15-20+ tons
20-30+ tons
20-30+ tons
Cut Width
36"
36"
52"
52"
Avg. Flow Range
32-39 GPM
32-39 GPM
42-52 GPM
42-52 GPM
Min. Weight
2300 lbs (w/ Flat Top Bracket)
2700 lbs (Estimated w/ Full Bracket)
3000 lbs (w/ Flat Top Bracket)
3400 lbs (Estimated w/ Full Bracket)
Min. Pressure
4000 psi
4000 psi
4000 psi
4000 psi
Std. Motor Size
80 cc
80 cc
107 cc
107 cc
Std. Motor Type
Bent Axis Piston
Bent Axis Piston
Bent Axis Piston
Bent Axis Piston
Sugg. Disk Speed
1800 RPM
1800 RPM
1800 RPM
1800 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