In this comprehensive article, we'll dive into every aspect of the rotors and teeth and why they make Virnig's Drum Mulcher a standout performer in the forestry industry. We explain the options available to you with key benefits, functionality and best practices associated with this high performing skid steer mulcher attachment.
For a printable PDF of Virnig's Rotor & Tooth Guide, please click here. (opens a new tab for viewing w/ option to download)
Within the frame of Virnig's V70 Drum Mulcher attachment lies a perfectly balanced rotor manufactured by Quadco®. The high-quality rotor design ensures smooth operation and optimal mulching results across various terrains and vegetation types when paired with the proper teeth.
The drum rotors have a diameter of 18" and feature a 1" thick steel wall. Rotor weight starts at 750lbs for a 60" smooth drum and tops out at 1,030lbs for a 72" bite control drum. High speed and weight (momentum) help the rotor overcome resistance and efficiently cut through dense vegetation resulting in increased productivity.
Configuration options for the rotor are either a smooth drum rotor (above left), or a bite control drum rotor (above right). We'll break down the key features next.
SOFTWOOD | ROCKY GROUND | EXPERIENCED USER
Higher Productivity in Smaller Diameter Wood and Softwood Trees - For trees 8" and smaller, the smooth drum rotor is a great choice. It quickly processes vegetation with max energy transfer and cut depth.
Ideal for Ground Contact & Rocky Environments - For applications with substantial ground contact or rocky terrain, the smooth drum rotor provides superior results. Examples include mixing mulch into the ground and grinding stumps below grade. For these uses, carbide teeth are highly recommended.
Anti-Wrap Design - Help prevent wire and debris from tangling around the rotor shaft, minimizing downtime and maintenance.
HARDWOOD | SOFT SOIL | NOVICE USER | SUPERIOR FINISH
Higher Productivity in Larger Diameter Wood and Hardwood - For trees up to 14", hardwoods, and stringy vegetation, the bite control drum rotor easily and efficiently chews through material.
Ideal for Above-Ground & Soft Soil Environments - The bite control drum rotor is best equipped for applications without ground contact, in soft soil.
Anti-Wrap Design - Help prevent wire and debris from tangling around the rotor shaft, minimizing downtime and maintenance.
You can mix and match teeth based on environment and personal preference. Teeth can be installed anywhere on the drum as long as they're installed in pairs across from each other. First, we'll cover each tooth style and what they're best suited for, then we'll show common ways teeth are installed on the drum.
SOFT SOIL | SUPERIOR FINISH | REVERSIBLE
ROCKY GROUND | MANICURED FINISH | DURABLE
ROCKY GROUND | ROUGHER FINISH | DURABLE
| TOOTH | STEEL PLANER |
CARBIDE PLANER |
CARBIDE HAMMER |
| MAINTENANCE | High | Low | Low |
| PRODUCTIVITY | Best | High | Low |
| FINISH | Best | Good | Rougher |
| WEAR RESISTANCE | Low | High | Best |
| ENVIRONMENT | Soft Soil | Sandy & Rocky | Sandy & Rocky |
To fully harness the potential of Virnig's Drum Mulcher and achieve unparalleled results, here are some best practices and techniques to consider:
Maintain a consistent mulching speed to ensure even and thorough coverage. Both excessive speed and extremely slow operation could cause unnecessary stress on the machine and the attachment. Virnig's Drum Mulcher sets new benchmarks with the ability to rapidly reach maximum speed, and with quick spinup and recovery times you'll have a high productivity on the jobsite.
Regularly inspect and clean the drum mulcher after each use. Remove any debris or vegetation residue to prevent corrosion and ensure smooth functioning of the equipment. If using steel planer teeth, sharpen them daily to maintain performance.
Why settle for less when you can achieve exceptional mulching results with Virnig's Drum Mulcher? Make the smart choice and invest in a top-tier mulching solution that will exceed your expectations.