1645-Series Rolling Harrow® Soil Conditioners

Heavy-duty design for high-speed soil finishing!  The model 1645 and 1645D Rolling Harrow soil conditioner adds to the three-decade long tradition of this timeless tool.  The model 1645 double basket Rolling Harrow features aggressive 16" diameter front rolling baskets with scalloped and pitched blades for breaking up larger clods.  The passive, 16" diameter rear rolling baskets applies the finishing touches to the operation with additional soil conditioning and firming.  Model 1645D features the same front basket as the 1645 and couples it with a 16" diameter rear rolling drum that pushes down rocks and enhances soil firming.  The 1645 and 1645D Rolling Harrow soil conditioners are specifically designed for high-speed soil finishing behind field cultivators, discs, and vertical tillage tools.

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Basket & Drum

Rolling Harrow Soil Conditioner 1645D

Time-Tested Seedbed Prep

The Unverferth Rolling Harrow soil conditioner has been proven in the field for more than 35 years.  While others imitate this time-tested product, none can duplicate the innovative features and optimal performance of the Rolling Harrow.

Model 1645

The double basket design combines an aggressive front basket with forward-angled blades that dig into the soil and propels larger soil clods into the rear basket with rearward angled blades that firm and condition the soil.

Model 1645D

The basket-drum design combines an aggressive front basket with a 16" diameter rear rolling drum with 1 5/16" welded cleats that drive the drum through the field, while creating channels for enhanced water retention.  Reversible scraper blades keep the drum clean during operation.

On 15’ wide base models, automatic hydraulic transport locks maintain proper drum ground clearance during transportation.

Soil Conditioning

The high-clearance, arched and oscillating double basket or basket-drum frame features a free-floating design to ensure uniform soil conditioning in a wide variety of field terrains and soil types.

The exclusive basket design features notched end and center discs for a more consistent tillage depth and the 1 9/16” tall blades penetrate the soil for enhanced seedbed prep.

1645 Basket

Basket Construction

Models 1645 and 1645D feature a lead 16" diameter robotically welded basket with a 2 3/8" center shaft providing full-width basket support and are ideal for pulling at higher tillage speeds behind vertical tillage tools.

High-carbon steel, 3/8” thick spiraled and serrated blades feature a thicker design for long-lasting performance.

RH Basket Arm Pivot Cover

Pivot Arm Covers

The double basket and basket-drum mounting arms feature pivot covers that prevent rocks and debris from accumulating, which ensures the basket oscillates and follows ground contours.

Bearings

All baskets and drums on the Rolling Harrow soil conditioner feature patented 4-bolt greaseless bearings with a 1 1/8" square bore that can withstand heavy side-load stress during high-speed turns and triple lip seals with an exclusive shouldered construction that prevents the seals from reversing, keeping out dirt and debris.

Frame

Sizes

The Unverferth Rolling Harrow soil conditioner models 1645 and 1645D are available in sizes ranging from 26’ up to 59’ and feature a 12’ or 15’ base with a cross- or 5-section vertical-fold design depending on size.

Rolling Harrow 1645 Extendable Tongue

Tongue

The oversized 5” x 5” adjustable length tongue can be extended from 10’ 2” to 19’ 2” on 12’ base models and from 12’ 10” to 21’ 10” on 15’ base models which provides a generous turning radius.

Horsepower

Depending on field conditions, generally 1 to 2 horsepower per foot of Rolling Harrow is required and minimal weight is added to the lead tillage implement for reduced stress.

9.5Lx15 Tires

Transportation

The main frame features 16" of ground transport clearance and utilizes 9.5L x 15 dual wheels and tires (11L x 15 duals on 5-section vertical fold) for exceptional transport stability.

All models are standard with LED transport lighting and reflective markings for safer road travel and the parking jack permits convenient storage.

Rolling Harrow 1645D in Field

Powder Coat

The tongue, main frame and wings are powder coated in your choice of tractor red or green for a long-lasting, high-quality finish.

UM Rolling Harrow Hydraulic System

Hydraulics

The Rolling Harrow soil conditioner tillage tool is complete with all hydraulics, including couplers and protectors, to raise the transport wheels and fold the wings.  All hydraulic hoses are rated at 3,000 PSI and are routed through the mainframe for longer life.

One set of hydraulic remotes is required on 26’ – 45’ models with a manual wing-fold lock out valve for raising the unit on end rows without folding the wings.  On 47’ to 59’ models, standard dual hydraulics allow the operator to run the raise and lower functions and the wing fold and unfold functions on two separate hydraulic remotes.

 

Options & Accessories

Tongue Options

The Rolling Harrow soil conditioner can be equipped with an optional gooseneck hitch that raises the tongue 2’ and lengthens the tongue 2’ for added clearance from the lead tool and permits a tighter turning radius.

A hydraulically operated offset tongue is available for all sizes of Rolling Harrow soil conditioners and allows the operator to adjust the Rolling Harrow over up to 2’ over to match the outer edge of the lead implement to clear obstacles or run along the field’s edge.

Wing Lift Assist Hydraulics

Wing Lift-Assist

An available wing lift-assist option with 9.5L x 15 tires is available for 26’ to 32’ 1645 models.

Specifications

Rolling Harrow® Model 1645
Working Width Fold Type Transport Width Transport Height Minimum Length Maximum Length Base Width Wing Width Tire Size Approx. Weight
26' Cross 14'5" 11'4" 23'2" 31'8" 12' 7' 9.5L x 15 7,780 lbs.
28' Cross 14'5" 11'8" 23'2" 32' 12' 8' 9.5L x 15 7,915 lbs.
30' Cross 14'5" 13'4" 23'2" 32'5" 12' 9' 9.5L x 15 8,085 lbs.
32' Cross 14'5" 13'6" 23'2" 32'11" 12' 10' 9.5L x 15 8,325 lbs.
34' Cross 14'5" 13'6" 23'2" 33'6" 12' 11' 9.5L x 15 8,470 lbs.
36' Cross 14'5" 13'6" 23'2" 33'10" 12' 12' 9.5L x 15 8,615 lbs.
39' Cross 16' 12' 24'2" 32'4" 15' 12' 9.5L x 15 9,185 lbs.
41' Cross 16' 12'6" 24'2" 32'4" 15' 13' 9.5L x 15 9,785 lbs.
43' Cross 16' 12'10" 24'2" 32'4" 15' 14' 9.5L x 15 10,115 lbs.
45' Cross 16' 13'4" 24'2" 32'4" 15' 15' 9.5L x 15 10,450 lbs.
Due to continuing improvements in the design and manufacture of Unverferth products, all specifications contained herein are subject to change without notice.
Rolling Harrow® Model 1645D
Working Width Fold Type Transport Width Transport Height Minimum Length Maximum Length Base Width Wing Width Tire Size Approx. Weight
26' Cross 14'5" 11'4" 23'2" 31'8" 12' 7' 9.5L x 15 8,450 lbs.
28' Cross 14'5" 11'8" 23'2" 32' 12' 8' 9.5L x 15 8,860 lbs.
30' Cross 14'5" 13'4" 23'2" 32'5" 12' 9' 9.5L x 15 9,040 lbs.
32' Cross 14'5" 13'6" 23'2" 32'11" 12' 10' 9.5L x 15 9,130 lbs.
34' Cross 14'5" 13'6" 23'2" 33'6" 12' 11' 9.5L x 15 9,305 lbs.
36' Cross 14'5" 13'6" 23'2" 33'10" 12' 12' 9.5L x 15 9,485 lbs.
39' Cross 16' 12' 24'2" 32'4" 15' 12' 9.5L x 15 9,995 lbs.
41' Cross 16' 12'6" 24'2" 32'4" 15' 13' 9.5L x 15 10,870 lbs.
43' Cross 16' 12'10" 24'2" 32'4" 15' 14' 9.5L x 15 11,240 lbs.
45' Cross 16' 13'4" 24'2" 32'4" 15' 15' 9.5L x 15 11,610 lbs.
Due to continuing improvements in the design and manufacture of Unverferth products, all specifications contained herein are subject to change without notice.

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