GrainKing Introduces 123,000-Liter Hybrid Chaser Bin
The Australian manufacturer expands into ultra-high-capacity grain carts with a 100-tonne model designed to bridge the gap between traditional chaser bins and stationary mother bins.

GrainKing has launched the Nyrex 100T, a 123,000-liter (100-tonne) grain cart, entering the growing segment of ultra-large chaser bins aimed at improving in-field harvesting logistics.
The new model follows recent high-capacity releases such as the Coolamon 120T (148,000 liters) and the Brent 3298 Avalanche (111,000 liters), reflecting a broader industry trend toward larger grain handling equipment operating alongside combines.
Key Figures
Capacity: 123,000 liters (100 tonnes)
Segment: Chaser bin / hybrid “chother bin”
Hybrid Concept
According to GrainKing, the Nyrex 100T introduces a hybrid concept combining features of:
Chaser bins: mobile units that support combines during harvest
Mother bins: large-capacity units stationed at field edges as logistical buffers
The company informally refers to the concept as a “chother bin,” highlighting its dual role in both in-field grain transfer and extended storage support.
Product Positioning
GrainKing has an established portfolio of chaser bins ranging from 26,000 to 75,000 liters. The Nyrex 100T significantly expands this range, effectively doubling the capacity of its largest conventional models.
The unit is designed to:
Reduce unloading frequency for combines
Improve harvesting efficiency in large-scale operations
Support higher throughput in modern grain logistics systems
The company notes that the primary operational constraint is the requirement for high-horsepower tractors to handle the increased load.
Large-Capacity Segment
Beyond chaser bins, GrainKing is also active in the mother bin segment. Its flagship model, the Maximus 300T, offers:
Capacity: 375,000 liters (300 tonnes)
Positioned as one of the largest grain carts globally
Market Context
The launch reflects a clear shift in the agricultural machinery industry toward higher-capacity grain handling solutions. As farm sizes increase and harvest windows tighten, demand is rising for equipment that can minimize downtime and optimize logistics between combines and transport units.
Oulook
The Nyrex 100T reinforces the trend toward hybridization in grain logistics equipment. By combining mobility with extended capacity, manufacturers are targeting efficiency gains in large-scale harvesting operations, particularly in markets such as Australia where field distances and operational scale are significant.
















