Grain Chaser Bins

GrainKing

GrainKing is a proudly Australian, family-owned business based in Cunderdin, WA, with over 60 years of experience in farming innovation. Specialising in premium grain handling equipment, they’re known for their cutting-edge Nyrex Chaser Bins, Maximus Mother Bins, and Geminus Seed & Super Bins—designed to boost productivity and streamline harvest operations.

With a strong focus on quality, innovation, and Aussie-made strength, GrainKing is trusted by farmers across the country. Their gear is built tough to handle real farm conditions, helping you work smarter and faster every season.

GrainKing Grain Chaser Bins

Model	Size, Capacity	Width	Load in Height	Length (inc drawbar)	Steering	Brakes	Suspension
23000L Single Axle	18T, 23000L	3800mm	3530mm	6350mm	No	Yes	No
32000L Single Axle	25T, 32000L	3800mm	3530mm	7750mm	No	Yes	No
40000L Single Axle	30T, 40000L	3800mm	3530mm	8120mm	No	Yes	No
40000L Tandem Axle	30T, 40000L	3800mm	3530mm	8120mm	Rear	Yes	Yes
48000L Tandem Axle	38T, 46000L	3800mm	3530mm	9520mm	Rear	Yes	Yes
56000L Tandem Axle	45T, 56000L	4500mm	3630mm	9140mm	Rear	Yes	Yes
70000L Tandem Axle	55T, 70000L	4500mm	3630mm	10540mm	Rear	Yes	Yes
70000L Tri Axle	55T, 70000L	4500mm	3630mm	10540mm	Front/Rear	Yes	Yes
82000L Tri Axle	65T, 82000L	4500mm	3630mm	11950mm	Front/Rear	Yes	Yes
94000L Tri Axle	75T, 94000L	4500mm	3630mm	13340mm	Front/Rear	Yes	Yes

GrainKing Seed and Super Bins

Model	Rated Tonnage	Width	Load in Height	Length (inc drawbar)	Steering	Brakes	Suspension
25T	25T	4485mm	3900mm	7500mm	No	Yes	No
35T	35T	4485mm	3900mm	8500mm	Rear	Yes	Yes
45T	45T	4485mm	3900mm	10900mm	Front/Rear	Yes	Yes
60T	60T	4485mm	3900mm	12602mm	Front/Rear	Yes	Yes

GrainKing Dynamis

Model	Size, Capacity	Width	Load in Height	Length (inc drawbar)	Steering	Brakes	Suspension
135T	135T, 169,000L	3700mm	4062mm	19820mm	Yes	Yes	No

Model

Size, Capacity

Width

Load in Height

Length (inc drawbar)

Steering

Brakes

Suspension

135T

135T,

169,000L

3700mm

4062mm

19820mm

Yes

GrainKing Maximus Motherbins

Model	Size, Capacity	Width	Load in Height	Length (inc drawbar)	Steering	Brakes	Suspension
140T	140T, 175,000L	4482mm	4062mm	15465mm	No	Yes	Walking Beam
176T	176T, 220,000L	4482mm	4062mm	18547mm	No	Yes	Walking Beam
220T	220T, 275,000L	4482mm	4062mm	22906mm	No	Yes	Walking Beam
300T	300T, 375,000L	5490mm	4508mm	22906mm	No	Yes	Walking Beam

GrainKing Seed & Super Bins

Fast unloading twin 18" augers
Rain caps on both augers to prevent water ingress when augers are folded down
Stainless steel "V" floor and auger barrels
All Grain King bins have certified heavy-duty hydraulics and hydraulic braked axles
Hand-held remote controls that can be operated from either the tractor cab or on your air seeder
Hydraulic floor auger, adjustable flow doors, adjustable spouts, swinging cleanout doors
No contamination between seed and fertiliser - split compartment bin
Lights/camera kit standard - large range of options available
Use at harvest time as a Chaser Bin

GrainKing Nyrex Chaser Bins

Braked axles for operator safety
Low centre of gravity for unparalleled stability
22" or 24" Adjustable pivoting discharge auger.
Hydraulic jack stand for fast and efficient hook-up
Full-length clean-out doors for quick and easy bin clean-out
Adjustable hydraulic cushioned draw-bar for a smoother ride
Light kit & 3 x camera kit for improved safety and efficiency
Electric adjustable auger covers for greater control over the discharge speed
Electric adjustable chute making Nyrex exceptionally user-friendly
Hydraulic independent suspension with 400mm travel total
Rear steering on tandem models, front and rear steering on tri models
In-cab joystick controls for easy bin operation
Full PTO, HYD/PTO or HYD/HYD drive options to suit any setup
Single set of hoses required on full PTO drive bins
Handpiece on 5m lead for setting drawbar, jackstand and suspension height
Large range of sizes and options available.

GrainKing Maximus Field Bins

5 Year structural limited warranty
Hydraulic Brakes to ensure the safety of the operator is always the first priority.
Tandem cushion rocking suspension ensuring a smoother ride for transport, both benefiting the operator as well as stopping any bin fatigue.
Flotation Tyres, helping you to transport across boggy paddocks, while reducing compaction.
Flow Adjustable Grain Doors which allows the operator to control speed of grain flow.
Light Kit for enhanced vision at night.
Camera Kit for easy viewing into the Maximus Bin.
Adjustable Poly Spout to ensure you are putting the grain exactly where you want it.
Height Adjustable Drawbar to help the operator in transportation through creeks and rough paddocks.
Full length unobstructed internal walkways ensuring safety and convenience for the operator and ease of clean out.
22” auger for a more efficient unload capacity.
Sight Windows to ensure the operator can analyse from further away.
Side Access Door for ease of access when it comes to clean-out
Large range of sizes and options available

135T GrainKing Dynamis Field Bin

2 Year structural limited warranty
Hydraulic Braked axles to ensure the safety of the operator is always the first priority
4 axles with dual truck tyres helping you to transport across boggy paddocks
Light Kit for enhanced vision at night
Camera Kit for easy viewing when unloading the bin
Full length unobstructed internal walkways ensuring safety and convenience for the operator and ease of clean out
18" auger for a more efficient unload capacity
Sight Windows to ensure the operator can analyse from further away
Side Access Door for ease of access when it comes to clean-out
Under 3.7m wide so no pilots are necessary when towing on the road