X-TREME Front-Fold Auger Grain Carts - Unverferth Grain Handling

Since the first Unverferth corner-auger grain cart introduction in 1988, we've been stretching out imaginations to develop a single, corner-auger front-fold grain cart design with the greatest forward, outward and upward reach. The Unverferth models 1315, 1115 and 1015 grain carts are specifically engineered with these goals in mind, which is why they're named X-TREME.

All X-TREME™ model grain carts feature a patent-pending auger that allows the upper portion to store diagonally along the front of the cart for extreme auger reach. Add in the Dyna-Torque auger with deep sump and you'll experience extreme unloading efficiency at 620 bushels per minute.

X-TREME Grain Cart


  • Capacities of 1,300-, 1,100-, and 1,000-plus bushels.
  • Dyna-Torque drive combines a 22" sump-mounted auger with leaned double flighting feeding into the 20" unloading auger for greater unloading efficiency than a conventional, full-length 22" auger
  • Patent-pending cushioned upper auger connection for smooth, efficient stress-free auger engagement
  • Folding auger features flex-drive coupler for optimum u-joint life
  • Upper and lower augers are synchronized for greater capacity, dependability and smooth operation
  • Computer-balancing virtually eliminates any vibration of the lower and upper augers for longer life
  • Ultra-Edge reinforced flighting provides 1/2" of steel at the outer edge for long-term performance
  • Heavy-duty gearbox features an extra-large 1 3/4" full-length output shaft for handling the toughest unloading chores, even wet corn
  • The oversized gears and bearing are encased in a durable aluminum gearbox housing, are static-rated at 330hp and dynamic-rated at 153hp for long-term, trouble-free use
  • Auger features hydraulic locking for a leak-free connection during unloading
  • P.T.O. features a cut-out clutch for superior driveline protection and automatic reset
  • Vortex downspout features a funnel design with 60° rotation for precisely controlling grain flow without splatter
  • Spout rotates downward for easy transport and storage within the width of the cart
  • Dual, auger-mounted, high-intensity halogen lights for easier nighttime unloading
  • Truss-frame design, structural tubular steel axles and 10-bolt gusseted hubs for smooth trailing, low maintenance
  • High-tensile, special-alloy steel spindles carry the heaviest loads with ease
  • Easy-to-use, gravity-flow is wheel-operated and can be locked open for easy cleanout
  • Standard transport safety features include L.E.D. tail and turn lights, side marker lighting, reflective striping and safety chain
  • Cast steel single-tang hitch with chamfered opening for reduced drawbar stress when traveling over uneven terrain
  • Silicone-sealed seams, durable primer undercoat and oven-baked enamel topcoat choice of tractor red or green to resist corrosion
  • Undercarriage options of high-flotation singles, or tracks, depending on model


A complete harvest data management solution, UHarvest is the first ever system offered on either a tablet or ISO screen for a complete touchscreen interface that's easy to use for anyone in your operation!  Not only can you record your grain cart load weights, you can track every detail regarding your crops, trucks, destinations and even DRY bushel count.

UHarvest Video

UHarvest system base features

  • Complete Touch-Screen Operation — Easy-to-use operation from your tractor’s ISOBUS virtual terminal screen or touch-screen tablet, or both
  • Accu-Save Data Recording — Automatically records data for each load
  • Grower, Farm, Field Information — Log your harvest by grower, farm and field for detailed reporting
  • Truck And Destination Site Identification — Easily log bushels by trucks and destinations
  • Combine Verify — Easily use grain cart to assist in calibrating the combine yield monitor with one touch
  • Hitch Weight Management — Monitor load distribution during cart loading
  • USB Data Management — Easily copy UHarvest data for use in your home computer
  • Multiple User Access — Full data access available to multiple users within 400 feet of UHarvest processor
  • UHarvest Cloud Solution Powered By Slingshot® — Slingshot is a secure, web-based data management system that enables you to save and see your harvest data from anywhere

UHarvest system optional features

  • Moisture Sense Technology — Convert grain weight to dry bushels for precise harvest record keeping
  • Accu-Load Technology — Automatic grain cart unloading and shutoff at desired off-load weight


  • For tractors without a P.T.O. the X-Treme cart can be converted to hydraulic drives that match your tractor's hydraulic output
  • All are tongue-mounted with highly visible pressure gauge for ensuring peak unloading performance
    • 55 G.P.M. - Dual port with output of up to 300 bu/mn.
    • 105 G.P.M - Triple port with output of up to 400 bu/mn
  • Weatherguard rollover tarp with heavy-duty 18-oz canvas to protect load contents is standard on the 1315 and 1115, and optional on the 1015
  • MODEL 410
    • This unit is specifically designed for ease of use and maximum productivity while providing key features. The patent-pending START/STOP button makes using and training others quick and easy. The 410 indicator also provides the ability to:
      • Assign, view and change six character field information
      • Accumulate weights within a field
  • MODEL 520
    • The model 520 scale features a patent-pending rotational sensor that automatically logs what is unloaded for ease of use and equipped with optoinal auto-unload package. The large, 26-character display provides more detailed harvest information such as:
      • Combine CHECK button to help calibrate the combine’s yield monitor
      • Alpha-numeric keyboard for easily editing or changing field information
      • Accumulation of weights per field entry
      • Ability to download field information from your computer to the scale monitor and then back to the computer
      • Stores a complete season’s harvest data in the monitor’s memory
      • Included 1GB USB flash drive permits easy transferring of data
      • Included PC software allows the computer to capture the data and then organizes it into reports in Microsoft Excel or Adobe PDF format.
      • Available with optional Auto-Unload package for automatically unloading a predetermined amount of grain into the trucks or wagons. Individual trucks can programmed into the scale's memory to only unload what the truck can hold.
      • Options for the scale packages include:
        • Thermal printer for printing a hard copy of each weight unloaded into the truck. Wires directly into tractor's power supply and programmed exclusively for syncing with all Unverferth scale indicators
        • Or, a downloader module for the model 410 that records each load with a simple push of the print button. The day's information can be then downloaded to a computer for detailed record keeping. Includes software and cabling for connecting to the computer
  • Auto Greaser for tracked undercarriage provides consistent lubrication at regular intervals throughout the day to all main pivoting points for easier maintenance. Provides up to 160 hours worth of greasing and is powered through tractor's electrical system


Model Number 1315 1115 1015

*Capacities measured with #2 corn at 15% moisture, 56# test weight.

**Model 1315 measurements with 76x50.00x32 tires, models 1115 and 1015 with 900/60R32 tires.

Due to continuing improvements in the design and manufacture of Unverferth products, all specifications contained herein are subject to change without notice.

Capacity* 1300+ 1100+ 1000+
Unload Speed (bu/min) 620 620 620
Approximate Empty Weight 17,360 14,300 13,920
Approximate Full Tongue Weight 6,255 6,200 5,900
Tire Size 520/85x42 Duals 520/85x42 Duals 900/60R32 BIAS LI176
A 20'4" 19'6" 19'6"
B 10'4" 10'4" 10'4"
C 25'6" 21'10" 21'10"
D 33'10" 29'11" 29'11"
E 13'9" 13'9" 13'9"
F 8'6" 8'6" 8'6"
G 12'4" 12' 11'8"
H 11'5" 11' 10'8"
I 1'5" 1'5" 1'5"
J - Tandem Duals 60" or 72" 60" or 72" 60" or 72"
J - Singles** 120" 120" 120"
K - Tandem Duals 6'10" 6'10" 6'10"
K - Singles** 13'10" 12'10" 12'10"
L 120" or 144" 11'11" 11'11"
M 12' 12' 12'
M-Tracks 12'10" 12'10" 12'10"
N 11'11" 11'11" 11'11"

Loaded Tire Ground Pressure - P.S.I. calculated at the 3" penetration level.
For use as a comparative guide in choosing between various tire options

Tracks 13.29 12.66 10.94
650/65x42 Duals 21.70 17.30 -
520/85x42 Duals 24.06 18.78 16.51
480/80x42 Duals - - 22.12
520/85x38 Duals - 19.80 17.53
76-50x32 22.01 17.00 15.24
1050/50x32 - - 16.80
35.5x32 - - 18.27
900/60x32 - - 24.89



520 Scale Package

Tracked Undercarriage Systems

Unverferth UHarvest