The Willmar S-500 offers the versatility to adapt to nearly any situation you may encounter on both small or large farm operations. The S-500 also offers you options with up to 12 wheel track options, a narrow track frame option, and a single or dual spinner configuration. For driving the spinner system, you can choose one of two different PTO drives or the optional 8-horsepower engine, adding to the versatility of this spreader.

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S-500 Spread At-A-Glance

Hopper Capacity Struck Hopper Capacity Heaped Maximum Gross Weight
152 cu. ft.  167 cu. ft.  14,000 lbs. 


Accurate Spread Pattern

The single spinner configuration boasts a 65-foot total spread pattern width that uses a single-pass, flat-type pattern. This type of pattern helps reduce the number of passes across a field for a more cost effective operation. There are two dual spinner models available in 40- or 50-foot configurations that deliver an 80- or 100-foot spread with a 100 percent overlap, pyramid-style spread pattern

Corrosion Resistant Materials

The S-500 features a corrosion-resistant phenolic flooring to ensure material moves smoothly while reducing build-up. This also helps extend the life cycle of the spreader’s conveyor chain.

Overall protection of the S-500 spreader is enhanced with a powder painting process. The spreader goes through a quick cure oven after paint is applied that bonds the powder paint to the steel. The resulting high-quality, durable finish helps protect and extend the life of the S-500.

Consistent Conveyor Systems

The S-500 spreader is equipped with a two-speed conveyor belt to provide an application rate of less than 100 lbs. per acre to over 2,000 lbs. per acre. A consistent relationship between ground speed and conveyor speed is maintained between the chain and sprocket conveyor ground drive system to insure precise application, even in moist conditions. Damage to the drive components is prevented by having a slip clutch sprocket assembly incorporated as well.

Equal Load Distribution

The S-500 provides you with a smooth ride and improved stability thanks to a multi-leaf, spring suspension system that features rocker arms on both sides of each axle. This not only reduces bounce but helps you achieve a consistent spray pattern. This system also allows you to unhook from the S-500 spreader without the risk of tilting or tipping over.

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