When it comes to large-scale agriculture, few machines capture the imagination quite like the biggest combine harvester in the world. These engineering marvels represent the pinnacle of agricultural technology, combining raw power with cutting-edge automation to harvest vast acreages with unprecedented efficiency. For farmers operating on massive grain operations, the question isn’t just about size—it’s about productivity, reliability, and return on investment.
So, what is the biggest combine harvester in the world? The answer depends on how you define “biggest”—by horsepower, grain tank capacity, physical size, or threshing system design. Let’s break down the current champions.
The Reigning Champion: New Holland CR11
The New Holland CR11 is widely regarded as the world’s largest combine harvester. Unveiled at Agritechnica 2023 after a decade of development, this machine represents the absolute pinnacle of combine engineering.
Key Specifications
- Engine: 775 hp FPT Cursor 16 six-cylinder, 15.9-liter engine
- Grain Tank: 20,000 liters (approximately 567 bushels)
- Unloading Speed: 210 liters per second—empties the tank in under 100 seconds
- Cutting Width: Up to 60 feet (18.6 meters)
- Threshing System: Twin Rotor design with 600mm-wide rotors
The CR11 features wider and longer threshing rotors—measuring 61 cm in diameter and 3.5 meters long (compared to 56 cm and 2.9 meters on its predecessor). Over 90% of its components are newly developed, with more than 8,000 newly engineered parts.
Why It’s the Biggest
The CR11 is recognized as the world’s largest twin-rotor combine harvester. Its predecessor, the New Holland CR10.90, previously held the world record for the most wheat harvested in eight hours. The CR11 takes that legacy even further, delivering 20% higher threshing capacity in grain and up to 40% higher in corn compared to the CR10.90.
The CR11’s 20,000-liter grain tank and 775-hp engine make it the undisputed king of capacity, cementing its status as the current titleholder for the biggest combine harvester in the world.
Other Contenders for “Biggest”
While the CR11 holds the crown, several other massive combines compete for the title of biggest combine harvester in the world in specific categories.
Case IH AF11
The Case IH AF11 is a Class 10-plus combine that Case IH describes as the largest harvesting machine on the market in North America. It features:
- 775 hp engine
- 567-bushel (20,000-liter) grain tank
- 6 bushels/second unloading rate
- Dual-rotor AFXL2 threshing system with 45% more threshing and separation area
The AF11 is notable for being Case IH’s first-ever dual-rotor combine and can mount up a 50-foot draper head and 16-row corn head.
Case IH AF10
The AF10 holds a different distinction: it is the world’s largest single-rotor combine currently on the market. With the same 775 hp engine and 20,000-liter grain tank as the AF11, it represents the pinnacle of single-rotor technology.
Claas Lexion 8900
The Claas Lexion 8900 boasts 790 hp from its 16.2-liter MAN engine—making it the most powerful combine in terms of rated engine horsepower. It features an 18,000-liter grain tank and is Claas’s largest model ever offered.
Fendt Ideal 10T
Tied with the Claas Lexion 8900 at 790 hp, the Fendt Ideal 10T is another powerhouse in the high-capacity harvesting segment.
Comparing the Giants
| Model | Engine Power | Grain Tank | Rotor Type | Distinction |
| New Holland CR11 | 775 hp | 20,000L | Twin Rotor | World’s largest combine |
| Case IH AF11 | 775 hp | 20,000L | Dual Rotor | Largest in North America |
| Case IH AF10 | 775 hp | 20,000L | Single Rotor | World’s largest single-rotor |
| Claas Lexion 8900 | 790 hp | 18,000L | Hybrid | Most powerful (hp) |
| Fendt Ideal 10T | 790 hp | — | Hybrid | Tied for most powerful |
In the horsepower race, the Lexion 8900 and Ideal 10T lead with 790 hp, closely followed by the Case IH AF11, AF10, and New Holland CR11 at 775 hp.
Which Combine Harvester Is the Best?
While knowing what is the biggest combine harvester in the world is fascinating, many farmers ultimately ask: which combine harvester is the best?
The answer depends on individual needs:
For Maximum Capacity and Technology
The New Holland CR11 offers the highest productivity on the market with the lowest grain crackage. Its IntelliSense AI-based automation system continuously optimizes performance.
For Single-Rotor Preference
The Case IH AF10 represents the best single-rotor option, with the longest single rotor on the market.
For Pure Horsepower
The Claas Lexion 8900 delivers the most available horsepower in a combine.
For North American Operations
The Case IH AF11 is designed specifically for large-scale North American farming, with a 50-foot draper head capability.
For Proven Performance
The John Deere X9 1100 offers 690 max hp and can harvest up to 30 acres per hour in wheat, backed by John Deere’s extensive dealer network.
Ultimately, which combine harvester is the best comes down to factors like farm size, crop type, terrain, dealer support, and budget. The “best” combine for a 5,000-acre wheat farm in Kansas may be very different from the best choice for a large corn operation in Brazil.
What Makes These Combines So Large?
The race to build the biggest combine harvester in the world is driven by several factors:
Economies of Scale
As farms continue to grow in size, the need for machines that can cover more acres in less time becomes critical. A single large combine can replace multiple smaller ones, reducing labor costs and machinery investment.
Technology Integration
Modern giants like the CR11 incorporate artificial intelligence, real-time sensors, and automation to maintain efficiency at massive scales.
Reduced Harvesting Costs
The primary goal of these machines is to reduce the total cost of harvest for farmers. By covering more ground faster and with less grain loss, they improve bottom-line profitability.
A Note on Smaller Alternatives
While these mega-machines dominate the headlines, not every operation requires such colossal equipment. For smaller farms, orchards, or hilly terrain, a compact and agile model like the JF100G Full-feed Combine Harvester (with 100 PS engine) offers an excellent balance of efficiency and maneuverability. It proves that sometimes the best harvesting solution isn’t the biggest, but the one that fits your specific fields and crop conditions.
Conclusion
For farmers wondering which combine harvester is the best, there’s no single answer—it depends on your specific operation. But one thing is certain: the world’s largest combines represent the absolute cutting edge of agricultural engineering, pushing the boundaries of what’s possible in modern farming.
As technology continues to advance, we can expect even larger, more powerful, and more intelligent machines to emerge. The race for the biggest combine harvester in the world is far from over—and that’s great news for global food production.