Sprayer Models — Browse All Makes & Manufacturers

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Boom width determines field coverage rate and therefore the machine's ability to keep pace with the crop's protection schedule across your total acreage. Standard boom widths on mid-range self-propelled sprayers run from 90 to 120 feet, while large-platform machines like the John Deere R4045 and Case IH Patriot 4450 are available with booms from 120 to 140 feet. Wider booms cover more acres per hour but require more careful boom management on irregular fields and headlands. The right width is determined by the acreage the machine needs to cover in a typical application window, not by the largest boom available.

Section control – the automatic shutoff of individual boom sections when the machine passes over previously sprayed areas or non-target zones – directly reduces input cost by eliminating overlap application. The value of section control on a used machine depends on the generation of the system fitted: older two- or three-section systems provide modest overlap reduction, while current-generation individual nozzle control systems can eliminate overlap almost entirely. Buyers integrating a used sprayer into a precision application program should verify the section control generation and its compatibility with their farm management software before committing.

Chassis clearance determines what growth stage the machine can enter without crop damage. Standard self-propelled sprayers typically offer 44 to 52 inches of clearance, sufficient for most pre-tassel corn and mid-canopy soybean applications. High-clearance specialist machines – such as the HAGIE series now part of John Deere – offer 60 inches or more, allowing application into significantly taller crop. Buyers who need to spray into late-stage corn or high-canopy specialty crops should verify clearance specifications carefully, as the difference between a standard and high-clearance machine is not recoverable after purchase.

The boom is the highest-wear, highest-maintenance component on a self-propelled sprayer and the most important inspection focus beyond the engine and drivetrain. Boom fold and breakaway mechanisms accumulate wear from repeated field cycling and impact events and should be inspected for straightness, hinge condition, and fold drive function. Nozzle body condition, diaphragm check valve function, and section control valve operation should all be verified. A used sprayer with a boom that has sustained significant impact damage or shows uneven nozzle wear patterns will deliver uneven application across its width – a problem that is agronomically costly and mechanically expensive to fully remediate.

Tank condition is particularly important on used sprayers because chemical residue, UV degradation, and physical damage can compromise tank integrity in ways that are not always visible from the outside. The interior of the tank should be inspected for discoloration, residue buildup, crazing of the tank surface, and any evidence of previous repair. Sump and drain systems should function cleanly. A tank that has carried highly persistent chemistry without thorough cleaning between applications can be difficult or impossible to fully decontaminate – a consideration that matters both for the next crop's protection program and for the machine's saleability when it comes time to trade.