The dual-spinner Willmar S-150 pull-type spreader is designed specifically for orchard and turf use and fit the precision pattern needs of small applications. The dual spinner on this pull-type spreader delivers material in a 100-percent overlap, pyramid-type pattern that reduces spread pattern variations due to wind and rough terrain.

The spread pattern of the S-150 by two 25-foot spinners is 50 feet. Two 40-foot or optional 50-foot spinners deliver a total spread pattern of 80 or 100 feet. 

Built to last, the conveyor and ground-drive chains are made with stainless steel while the frames are made of channel steel with reinforcements. The hopper and skid are constructed from 12-guard stainless steel. The S-150 is finished with a high-performance, chemical-resistant, epoxy-based, rust-inhibiting primer and a super-tough, acrylic urethane combination for corrosion-resistance to help protect and extend the life of these spreaders, while a corrosion-resistant phenolic flooring helps to facilitate smooth material flow without buildup from under the conveyor chain.

Model Specifications


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Hopper Capacity – Struck
49.6 cu. ft.
Hopper Capacity – Heaped
53.6 cu. ft.
Weight Empty
1470 lbs.
Maximum Gross Weight
7000 lbs.


Overall Length
171 in.
Overall Height
54 in.
Hopper Length
96 in.
Hopper Weight
60 in.
Hopper Height
23.8 in.


  • Single Axle, center-line wheel track. Axle built to 9000-lb. capacity, 4500-lb hubs and 3 x 3 x ¼ in. tubing.


  • 4 x 2 x 1/8-in. rectangular tubing


  • 7-gauge, hot-rolled, milled steel, channel-formed


  • 12-guage, hot-rolled, milled steel, channel-formed edges

Hopper, Skid & Gate

12-gauge, 409 stainless steel
12-gauge, 409 stainless steel
12-guage, 409 stainless steel


  • Phenolic Plastic

Conveyor Chain

  • 7 in. wide, 304 stainless steel with 1 in. x 1 in. mesh

Drive Chains

  • RC-2050, 304 stainless steel conveyor drive chain and RC-50, 304 stainless steel ground drive chain

Conveyor Chain Engage/Disengage

  • Mechanically with rope control from driver’s seat


  • 540 rpm PTO

Spread Pattern

  • Two 25-foot spinners deliver a total spread of 50 feet using 100% overlap, pyramid-type pattern; With orchard deflectors, two spinners deliver 15-25 feet total spread width and are designed to place the bulk of material at the center of the orchard rows


  • 11L x 15.8-ply tubeless


  • 2-part, high-performance, chemical-resistant epoxy primer and a 2-part, modified high-gloss acrylic urethane paint

Other Features:

  • Dependable ground-driven, two-speed conveyer system
  • PTO-driven dual spinners with four adjustable blades
  • Curved and cupped stainless steel blades minimize material pulverization
  • Application rate can be adjusted from less than 100 pounds per acre to more than one ton per acre
  • Material divider delivers fertilizer to spinners
  • Adjustable baffle plate controls material flow
  • Heavy-duty, narrow track frame with single axle
  • Manually adjusted metering system