Unverferth 657 Gravity
Unverferth 657




5+
sold in last yearGeneral overview
The Unverferth 657 grain cart is a farm equipment attachment designed for moving harvested grain during field operations. It uses a manual rack-and-pinion rear door, and the door opener uses a 6:1 gear reduction for controlled unloading. Manufactured in the United States, it is used alongside harvesting equipment in field grain-handling workflows.
Key size and handling figures include an empty weight of 3,234 kg (7,130 lb), an empty hitch weight of 680 kg (1,500 lb), and a loaded hitch weight of 1,134 kg (2,500 lb). The track size is 3,200 mm (10 ft 6 in), which helps define the cart’s running gear and towing footprint.
Year
2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024
Country of manufacturing
United States
General specifications
Dimensions
Length
Height
Width
5,105 mm
~201 in
3,200 mm
~126 in
2,896 mm
~114 in
Grain Cart Capacity
22,910 L
Hub Size/Spindle Diameter
3.5 in spindle; 10-bolt hub
Front/Rear Slopes
37° front/rear slope
Back Slope
32 deg
Door Width
0.04 m
Chute Height
15–18
Unloading Time
70 s
Grain Cart Wheel Size
13x22.5 singles; 9x22.5 duals
Grain Cart Turning Radius
8'
Additional specifications
Capacity Heaped
23 cu(m)
Track size
3,200 mm
Tractor hydraulics requirements
Not specified; gravity wagon with manual rack-and-pinion rear door and no hydraulic unloading. Optional tarp/hydraulic accessories noted in some listings but flow/pressure not specified.
Total weight - empty
3,234 kg
Hitch weight - empty
680 kg
Hitch weight - loaded
1,134 kg
PSI capacity
159 kPa
Gearbox
Rack-and-pinion door opener with 6:1 gear reduction (patented dual-position wheel)
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What is the average price of a Unverferth 657?
No confirmed market price is supplied for the Unverferth 657. Check current listings and compare the machine’s condition, location, and configuration.
What are the key advantages of the Unverferth 657?
Documented features include a manual rack-and-pinion rear door with 6:1 gear reduction and a patented dual-position wheel. It is a gravity wagon with no hydraulic unloading requirement. Optional tarp and hydraulic accessories are noted in some listings.
What type of engine does the 657 use?
The supplied specifications do not confirm an engine type for the Unverferth 657.
How much horsepower does the 657 have?
The supplied specifications do not confirm a horsepower rating for the Unverferth 657.
What fuel does the Unverferth 657 use?
The supplied specifications do not confirm a fuel type for the Unverferth 657.
What jobs is this Grain carts best suited for?
The supplied data identifies the Unverferth 657 as a gravity wagon with a manual rack-and-pinion rear door. It is suited to tasks requiring gravity unloading, but the supplied information does not confirm more specific applications or capacity.
What is the expected lifespan of the 657?
No expected service-life estimate is supplied for the Unverferth 657. Inspect the frame, running gear, tires, hitch, rear door, and rack-and-pinion mechanism, and review maintenance and repair history.
What should a buyer check when purchasing a used Grain carts?
Check the frame, hitch, running gear, tires, rear door, and rack-and-pinion opener for wear, damage, and smooth operation. Confirm the empty and loaded hitch condition, and verify whether optional tarp or hydraulic accessories are fitted and functional.





