Unverferth 3500

Standard Features

• Toolbar widths are available from 62.5’ down to 27.5’ with row spacings of 20” or 30” depending on size
• 54” of toolbar rank on models 3500 and 2500 and 38” of toolbar rank on model 1500 for maximizing residue flow
• The water tank provides quick access to clean water and a convenient storage container houses the operator’s manual
• Transport chain, lighting kit and parking jack are all standard for safer transport and easy storage
• Models 3500 and 2500 feature a CAT 4 ball swivel hitch and model 1500 features a CAT 3 single-tang hitch
• Powder coated in your choice of tractor red or green for a long-lasting, high-quality finish

Model 3500 Standard Features

• Available with toolbar sizes of 25-, 24-, 23-, 19- and 18-row with 30” spacing and a 36-row with 20” spacing
• Heavy-duty 6”x6” mainframe features a constant level design to maintain even depth and precise application over uneven terrain
• .375” thick wall tubing on the mainframe and wings and a heavy-duty main wing hinge handles the larger toolbar sizes up to 62.5’
• Wing flex from 15° up and 9° down on the primary wing and 6° up and 9° down on the secondary wing to follow ground contours
• Single-point manual depth control adjustment with a turnbuckle located at the tongue for convenient depth adjustment
• Standard dual 385/65 R22.5 Oscillating tires on the main frame
• The inner hydraulic lift wheel features 295/75 R22.5 tires and the outer gauge wheel features 20.5-8x10 tires

NH3 Row Unit Design

• The lead coulter features heavy-duty square mounting posts to ensure it stays straight and slices through the soil to clear a path for the NH3 shank.
  • Swivel design provides 10 degrees of side-to-side movement to follow ground contours and changing terrain
  • 20” diameter blade with 13 rippled waves cuts residue with 1,500 lbs. of downforce
  • 6-bolt greaseable hubs with 5 layers of seal protection for long-term, trouble-free use
• 1.25” x 2” edge bent anhydrous ammonia shank features twin-spring shank mounts with 300 lbs. of trip force for consistent working depth and obstruction flexibility
• The .75” NH3 knives feature a steel .375” tube for efficiently applying anhydrous ammonia underneath the soil
• The CoverMax closing coulter sealer features two notched blades that are angled to fill and seal the slot which prevents fertilizer loss
• Greaseless 1.25” plated pivot shaft with self-lubricating bushings and flat-face, zero-maintenance hubs with a 4-bolt design provide long-term, trouble-free use
• Disc sealer arms operate independently from each other allowing for superior trash flow and continuous soil contact
• 17” of overall travel and 9” of vertical travel from working depth allows the sealers to climb over obstacles
• Adjustable blade position and pitch allow you to customize to match your soil profile

Anhydrous Ammonia Control

• Tool-free adjustable rear nurse tank hitch features a retractable design for easy hookup
  • This hitch design retracts towards the front of the applicator so it can automatically lock when the operator drives forward, increasing the safety of the machine because the operator does not need to remember to back up to lock the hitch
• Single NH3 nurse tank safety coupler features a splash guard and quick disconnect for easier and safer operation
• The anhydrous ammonia nurse tank coupler utilizes 1.25” plumbing as standard with 1.5” available as optional
• The Renegade applicators are standard with a Raven ISOBUS rate controller and 50 gallon per minute single stainless steel Vortex cooler with 1.5” single fast valve
• 2-Section John Blue Impellicones with Raven shutoff valves on models 3500 and 2500, and 1-section control on model 1500

NH3 Distribution Options

• 2-, 3-, 4-, 5- or 6-section plumbing with John Blue Impellicones in lieu-of the standard 2-section or 1-section plumbing depending on the model and size for application versatility
• Continental A360 manifolds with 2-, 3-, 4-, 5- or 6-section plumbing in-lieu of John Blue Impellicones depending on the model and size
• Raven 450 rate controller in-lieu of ISOBUS rate controller
  • Requires dual flow control valves
• High-volume PWM Raven cooler pump increases flow to 80 gallons per minute
  • Requires ISOBUS control
• 1.5” dual valves in-lieu of the single fast valve is available for any controller option but is required when ordering less ISOBUS or with a Raven 450
  • Low-volume 1” single fast valve reduces output to 30 gallons per minute can be used with ISOBUS rate controller
  • Low-volume 1” dual valves reduces output to 30 gallons per minute and can be used with ISOBUS, Raven 450 or less rate control option
• Double safety NH3 couplers with 1.25” plumbing in-lieu of standard single coupler for tending two nurse tanks
  • 1.5” plumbing is available for the safety NH3 coupler systems in-lieu of the 1.25” plumbing
• Dual nurse tank hitch add-on kit makes for a total of 3 hitches and allows the operator to pull two nurse tanks in the field and one nurse tank at the center of the toolbar during road transport
  • Available on 19-, 23- and 25-Row 30” models
• N-Serve direct injection system features dual 55-gallon tanks with Raven direct injection pump that provides 1-40 oz. of flow and T’s into the plumbing after the cooler
  • N-Serve preserves the fertilizer in the soil for a longer period of time
  • Requires Raven ISOBUS controller

Wheel & Tire Options

• On model 3500, dual 12.4 R38 R-1 tractor tires are available on the mainframe in-lieu of the dual 385/65 R22.5 tires to provide greater crop clearance and added flotation
• On model 2500, single 385/85 R34 R-1 tractor tires are available on the main frame in-lieu of the dual 385/65 R22.5 truck tires on 13-, 15-, 17-, 19-Row 30” and 18-Row 20” sizes
• On model 2500, dual 385/65 R22.5 oscillating tires on the mainframe are available in-lieu of the dual 295/75 R22.5 tires
• On model 1500, a walking tandem system with 11L-15 tires are available for the mainframe in-lieu of the dual 11L-15 tires
• On models 3500 and 2500, 385/65 R22.5 tires for the wing lift wheels are available in lieu-of the 295/75 R22.5 tires
• On model 1500, a walking tandem lift wheel system with 11L-15 tires is available in-lieu of the single lift wheels
  • Available on 13-, 15- and 17-Row 30” models

Row Unit Options

• 20” Vortex coulter blades in-lieu of 20” rippled blades for more aggressive tillage
• MaxForce shank mounts in-lieu of the twin spring cushioned shank mounts
  • Ensures accurate depth in heavy soil types with rocks
  • 790 lbs. of trip force and 6” of vertical travel from working depth
  • Greaseless bearing pivot points reduce maintenance requirements
• 1.75” anhydrous ammonia knives with steel .375” drop tube in-lieu of .75” knife
• .75” and 1.75” freeze-less anhydrous ammonia knives available in-lieu of the .75” knife
• Disc sealer spring add-on kit adds down pressure to the CoverMax sealers
• 17” wavy blades are available in-lieu of the notched blades on the CoverMax sealers for increased soil movement

Hitch Options

• CAT 5 ball swivel hitch with 3 mounting holes for adjusting height position on models 3500 and 2500
• CAT 4 hitch on model 1500 for different tractor sizes
• Clevis hitch available on all models for pulling with a truck
• Drop hitch extension assembly on model 1500 lowers the overall hitch height by 4.375”