Overview: The Rotochopper B66L
The Rotochopper B66L is a high-capacity horizontal grinder designed for large-scale grinding operations. With 950 horsepower and a 42" x 66" rotor, it's built to handle the toughest materials and highest production demands in the industry.
Complete Specifications
Rotochopper B66L Technical Specifications
Engine & Power
- Engine: CAT C27 Tier 4
- Horsepower: 950 HP
- Fuel Tank: 340 gallons
- Hydraulic Tank: 185 gallons
- Load Regulation: Automatic
Rotor & Feed
- Rotor Size: 42" D x 66" W
- Feed Opening: 38" throat
- Feed System: High-torque powerfeed
- Discharge: Roller-bed under rotor
- Production: Up to 150 tons/hour
Dimensions & Weight
- Weight: ~90,000 lbs
- Length: 52 ft (transport)
- Width: 10 ft 6 in
- Height: 13 ft 6 in
Features
- Remote Control: Wireless w/ HUD
- Monitoring: RotoLink telematics
- Undercarriage: Track or wheel options
- Conveyor: Folding truck-loading
Pricing Guide (2025)
New Equipment Pricing
- Base Model (Wheeled): $1,200,000 - $1,350,000
- Track-Mounted: $1,300,000 - $1,500,000
- Dolly System (Transport): +$75,000 - $100,000
Used Equipment Pricing
Used B66L pricing varies based on year, hours, and condition:
- 2023-2025 / Under 500 hrs: $900,000 - $1,100,000 (Like-new)
- 2020-2022 / 500-1500 hrs: $750,000 - $900,000 (Excellent)
- 2018-2020 / 1500-3000 hrs: $650,000 - $750,000 (Good)
- Pre-2018 / Over 3000 hrs: $500,000 - $650,000 (Verify components)
B66L-Specific Inspection Checklist
Critical Components to Inspect
1. CAT C27 Engine
- Oil analysis showing acceptable wear metals
- No excessive blow-by or oil consumption
- Turbocharger functioning properly
- DEF system operational (Tier 4 models)
- No coolant or oil leaks
2. Rotor Assembly
- Rotor teeth wear (replacement cost: $15,000+)
- Rotor shaft bearings - no excessive play
- Rotor balance - should run smooth under load
- Hours since last rotor rebuild
- Screen condition and proper installation
3. Hydraulic System
- Hydraulic oil condition and level
- Pump operation - consistent pressure
- Cylinder seals - no leaks
- Hose condition - no cracks or bulges
- Oil cooler clean and functioning
4. Track Undercarriage (if equipped)
- Track pad wear (replacement: $25,000+)
- Roller and idler condition
- Final drive seals and fluid levels
- Track tension proper
Common Issues with Used B66Ls
Watch Out For These Issues
- DEF System Problems (Tier 4 engines): Can be expensive to repair. Verify system operates properly and check for any stored fault codes.
- Rotor Bearing Wear: High-hour machines may have rotor shaft bearing wear. Listen for rumbling or feel for play in the rotor shaft.
- Hydraulic Cooler Blockage: The 950 HP generates significant heat. Verify oil cooler is clean and operating temperatures are normal.
- Feed System Wear: The ultra-V cleats and feed slats wear over time. Budget $10,000-15,000 for replacement if heavily worn.
Operating Costs
Fuel Consumption
The CAT C27 consumes approximately 20-30 gallons per hour under normal grinding loads. At $4/gallon diesel, expect $80-120/hour in fuel costs.
Maintenance Costs
- Daily: Grease, visual inspection ($50/day materials)
- 250 hours: Oil & filter changes ($800-1,200)
- 500 hours: Full service, hydraulic filters ($2,500-3,500)
- Annual: Total maintenance typically $50,000-80,000
Major Component Replacement Costs
- Rotor Teeth (full set): $25,000-35,000
- Rotor Rebuild: $50,000-75,000
- Engine Overhaul: $75,000-100,000
- Track Pads (if equipped): $25,000-35,000
Ideal Applications for the B66L
- Large municipal composting facilities (over 100 tons/day)
- Major land clearing operations
- C&D recycling with high volume
- Biomass processing plants
- Any operation requiring 120+ tons/day consistently
Should You Buy a Used B66L?
Buy if:
- You process 100+ tons per day consistently
- You need maximum throughput and uptime
- You have the budget for higher operating costs
- You handle large or challenging material
Consider alternatives if:
- Your volume is under 80 tons/day (MC-266 may be better)
- Operating cost efficiency is critical
- Your budget is under $650,000
Final Thoughts
The Rotochopper B66L is an exceptional machine for high-volume grinding operations. A well-maintained used B66L can provide years of reliable service at significant savings over new. Take your time with the inspection, verify maintenance records, and consider bringing in a third-party mechanic familiar with Rotochopper equipment.
Looking for a Used B66L?
Browse our current inventory or contact us to be notified when B66L models become available.