GrainKing Nyrex, Chaser bins for the future manufactured today. GrainKing’s Chaser bins have evolved a lot over the last 40+ years. from simple RHS, cogs and sheet metal to smart laser cut folded parts with improved gear ratios and hydraulic suspension. GrainKing Chaser bin sizes range all the way up to 75T and come with a 5 year structural warranty, brakes, lights, cameras and many more standard features. Explore the models to find out more!
GrainKing Geminus
GrainKing Geminus for the future, manufactured today.
There is sure to be a product which suits your needs with 25T, 35T, 45T and 60T GrainKing Geminus sizes available. We now also have the option to add a 10000L Liquid fertilizer tank into the bin. The GrainKing Geminus is designed with two equal sized bins and dual augers with unloading capacity up to 20 ton per minute. The seeding unit is designed for zero contamination and maximum efficiency.
GrainKing Geminus come standard with features that make operating efficient, safe and convenient. The bins can be used at seeding and harvest time, as well as throughout the year for mixing grain into sheep feeders.
GrainKing Maximus
GrainKing Maximus for the future, manufactured today. GrainKing’s range of Motherbins comes in the form of the Maximus, a vast improvement on our original Motherbins. With capacities ranging up to 300T, the largest Motherbin in the world, there’s a Maximus for every farmer out there. Each Maxi comes standard with brakes, rear ladder, lights, cameras and many more standard features. Explore the range to find out more!
GrainKing Dynamis
GrainKing Dynamis for the future, manufactured today. The Dynamis is the result of farmers feedback throughout Australia wanting a narrow, easy to turn and high capacity Motherbin. We listened and revamped our original style Motherbins into what is now the Dynamis. Standard features include a rear ladder, brakes, lights, camera and much more. Explore the Dynamis product to find out more!
GrainKing Geminus for the future, manufactured today.
There is sure to be a product which suits your needs with 25T, 35T, 45T and 60T GrainKing Geminus sizes available. We now also have the option to add a 10000L Liquid fertilizer tank into the bin. The GrainKing Geminus is designed with two equal sized bins and dual augers with unloading capacity up to 20 ton per minute. The seeding unit is designed for zero contamination and maximum efficiency.
GrainKing Geminus come standard with features that make operating efficient, safe and convenient. The bins can be used at seeding and harvest time, as well as throughout the year for mixing grain into sheep feeders.
GrainKing Geminus Seed & Super Bins – Precision Seeding Solutions
Eliminate costly seeder downtime during critical sowing windows with GrainKing Geminus Seed & Super Bins, purpose-built paddock-side storage engineered to keep your air seeder rolling. With capacities from 25 to 60 tonne, Geminus bins are matched to air seeder sizes and refill cycles to maximise daily hectares seeded.
Position your product supply at strategic field locations to refill quickly without leaving the paddock, leaving you with extra time for seeding. Engineered for Australian conditions, these bins come with purpose-built compartments that separate seed from fertiliser precisely, allowing for a more accurate product flow.
Plus, it’s easy to clean, ideal for crop changeovers. The weather-protected storage keeps seeds and fertilisers viable and contamination-free, and the high-capacity augers prevent refill downtime.
The Geminus Seed Bins Advantage
GrainKing’s Geminus line is built specifically for seeds and fertilisers, not just adapted grain bins. They are designed to handle granular products precisely, with metering systems that maintain accurate flow rates and compartments that prevent cross-contamination.
Choose between a handful of configurations, from 25 to 60 tonnes, to scale exactly to your seeder size and field logistics. Reduce downtime from too-frequent refills without wasting capital on excessive capacity.
Each configuration comes with precision metering that ensures your air seeder receives consistent material flow throughout long operating days, protecting expensive seed treatments and maintaining target fertiliser rates regardless of bin level.
With strategic field positioning, you also only have to make fewer supply truck trips crossing paddocks. This minimises soil compaction when it matters most.
The Complete Geminus Range Overview
Four configurations handle different operational scales and seeding intensities. Choosing the correct capacity directly impacts refill frequency, daily output, and overall seeding efficiency.
Geminus 25T
The 25-tonne seed & super bin suit air carts around 5000L – 7000L. Thanks to its compact footprint, it’s easy to manoeuvre in smaller fields. It’s a practical, cost-effective entry point for growing operations adopting more efficient seeding systems.
Geminus 35T
The 35-tonne configuration suits mid size 7000L – 12000L air carts. It features balanced capacity and offers efficiency across wheat-dominant and mixed cropping programs. It’s a good middle ground between refill frequency and field footprint.
Geminus 45T
The 45-tonne capacity is best for larger 12000L – 20000L air carts. It helps reduce refill frequency during critical windows, and it’s ideal for farming operations that prioritise seeding maximum daily acres without unnecessary interruptions.
Geminus 60T
Our biggest capacity is the 60-tonne configuration, and it suits the largest of air carts of 20000L plus. It minimises seeder stops during long field runs, and is built for large scale broadacre, corporate farms, and contractor operations where tight seeding windows demand ultimate efficiency.
Choose the right Geminus seed and field bin based on your air seeder size, field distances, typical product loads (seed versus fertiliser ratios), and desired refill intervals.
Super Bins Features & Operational Benefits
The Geminus line comes with multiple compartment configurations to maintain proper seed and fertiliser separation. It has precision metering and delivery systems that ensure accurate flow throughout refills.
The easy clean-out design handles product changeovers efficiently between crop types, and the weather-protected storage keeps seeds and fertilisers dry and viable.
Plus, the high-capacity delivery augers help in minimising refill time and seeder downtime. Strategic positioning also reduces compaction from service vehicles. It’s compatible with bulk delivery trucks, mini-bulkers, and other supply methods.
Loading your air carts and seeders from a truck means that the tractor has to return to the edge of the paddock every time. With the Geminus, you can save time and money by driving to your air cart in the field for each load.
The result: air seeders loaded quickly at field locations without waiting for supply trucks or leaving productive seeding areas.
Explore the Complete GrainKing Range
GrainKing systems are engineered to work together across the full farming cycle – from planting through harvest and storage.
Pair your Geminus seed and super bins with Nyrex chaser bins to maintain high-speed harvest flow and minimise header downtime. Add Maximus mother bins for high-capacity, on-site grain storage that streamlines logistics during peak harvest pressure. For flexible, short-term field storage, Dynamis field bins provide versatile support when and where you need it most.
Build a coordinated equipment setup that keeps product moving season after season.
Find Your Geminus Configuration
Choose the right size for your equipment based on your actual needs: Consider what your air seeder needs, how you move things around your farm, the size of your support trucks, how far the roads are from the fields, and how much you plan to seed each day.
