2026 UNVERFERTH ROLLING HARROW 1645D

UNVERFERTH 1645D — ROLLING HARROW® SOIL CONDITIONER 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. — BASKET & DRUM — 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 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. 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. 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. 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. 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. 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. 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 An available wing lift-assist option with 9.5L x 15 tires is available for 26’ to 32’ 1645 models.