









RBC66-25-O
| CUT CAPACITY | CUT WIDTHS | FLOW RANGE | MAX PSI RANGE | FLY WHEEL LBS. |
| 6" | 66", 72", 78", 84" | 18-45 GPM | 3500, 4100, 4500 | 275 LBS. |
Skid Steer Attachment • Aggressive Cutting • Clean, Maintained Finish
The Virnig V50 Open Front Rotary Brush Cutter is built for operators who need serious cutting power without sacrificing finish quality. Designed to handle demanding brush clearing jobs, this cutter delivers aggressive performance while still producing a smooth, maintained look.
With its open front design, advanced blade system, and multiple motor options, the V50 is engineered for maximum productivity, durability, and compatibility across a wide range of skid steers and compact track loaders.
Built to take on heavy vegetation with ease.
Engineered for performance and flexibility across different machines.
Virnig’s design minimizes vibration and maximizes durability.
Built to process material faster and leave a cleaner finish.
Designed with operator protection in mind.
⚠️ SAFETY FIRST
DO NOT operate this cutter without a shatterproof cab on your loader. Serious injury or death can occur.
Engineered for long-term durability and performance.
Designed to work with most skid steers and compact track loaders.
| MODEL | RBC66-O | RBC72-O | RBC78-O | RBC84-O |
| Cut Width | 66.0 | 72.0 | 78.0 | 84.0 |
| Overall Height / Width / Depth (Inches) | 25.5 / 72.0 / 75.8 | 25.5 / 78.0 / 81.8 | 25.5 / 84.0 / 87.8 | 25.5 / 90.0 / 93.8 |
| Deck Height (Inches) | 7.5 | |||
| Push Bar Height from Ground (Inches) | 19.0 | |||
| Minimum Cut Height (Inches) | 1.8 | |||
| Cutting Capacity, Diameter (Inches) | 6.0 | |||
| Deck Thickness: Top / Side (Inches) | 0.25 | |||
| Recommended Flow Rate (GPM) | 18-25 Standard Flow / 25-42 High Flow / 35-45 High Pressure | |||
| Max Operating Pressure (PSI) | 3500 Standard Flow / 4100 High Flow / 4500 High Pressure | |||
| Flywheel Weight (Pounds) | 265 | 270 | 270 | 275 |
| Approximate Weight (Pounds) | 1490¹ | 1580¹ | 1670¹ | 1770¹ |
| Recommended Operating Cap (50%) | Less than 4200 pounds | |||
¹High pressure models add approximately 30 lbs to model weight.
Min/max blade speed at listed flow rates. Blade tip speeds in feet per minute (FPM).
| STND FLOW MODELS | RBC66-25-O | RBC72-25-O | RBC78-25-O | RBC84-25-O |
| 18 / 25 GPM | 11,715 / 16,275 | 12,775 / 17,755 | 13,840 / 19,235 | 14,905 / 20,720 |
| HIGH FLOW MODELS | RBC66-30-O | RBC72-30-O | RBC78-30-O | RBC84-30-O |
| 25 / 30 GPM | 12,630 / 15,155 | 13,780 / 16,530 | 14,930 / 17,910 | 16,070 / 19,290 |
| HIGH FLOW MODELS | RBC66-35-O | RBC72-35-O | RBC78-35-O | RBC84-35-O |
| 30 / 35 GPM | 11,265 / 13,150 | 12,320 / 14,400 | 13,375 / 15,465 | 14,430 / 16,530 |
| HIGH FLOW MODELS | RBC66-42-O | RBC72-42-O | RBC78-42-O | RBC84-42-O |
| 35 / 42 GPM | 10,855 / 13,025 | 12,805 / 15,360 | 13,870 / 16,625 | 14,930 / 17,885 |
| HP CUTTER MODELS | RBC66-45-O | RBC72-45-O | RBC78-45-O | RBC84-45-O |
| 35 / 45 GPM | 10,855 / 13,965 | 12,425 / 15,965 | 13,455 / 17,275 | 14,495 / 18,585 |
No fluff—here’s what matters.
👉 Your machine either matches the cutter… or it doesn’t.
Must be standard skid steer mount (SSL).
👉 Use 50% of tipping load
Not brochure numbers.
👉 Must be within range — NEVER over
Over =
❌ motor failure
❌ heat
❌ no warranty
👉 Must be at or below rating
Too much =
❌ blown seals
❌ shorter life
👉 Wider than your tracks
BUT:
👉 Borderline machine? Size down.
👉 Flow = speed
👉 Pressure = torque
Every machine is different.
👉 Virnig gives motor options so you:
Higher speed = cleaner cuts
BUT…
👉 Mass keeps cutting
👉 You need speed + torque + flywheel weight
Most problems come from:
👉 Bad match
👉 Poor design
Get it right:
✔ Smooth
✔ Fast
✔ Long-lasting
Get it wrong:
❌ Expensive
👉 Match it. Size it right. Run it right.