A “Trailed Sprayer” (also known as a Pull-Type Sprayer) is an essential piece of agricultural equipment designed for the precise application of liquids onto farm crops.
As the name implies, it is trailed (pulled) behind a tractor. It is a vital component of modern crop protection and nutrition.
The primary function of the sprayer is to uniformly distribute a liquid, atomized into a fine mist, over large areas of farmland.
The liquids applied can be:
Crop Protection Products:
Herbicides: To control weeds.
Fungicides: To prevent and treat diseases (fungi).
Insecticides: To control pests and insects.
Crop Nutrition:
Liquid Fertilizers: Applying nutrients directly to the leaves (foliar feeding) or at the base of the plant.
Biostimulants: To enhance plant growth and resilience.
Chassis & Wheels: The robust frame the entire implement is built on, equipped with one or two axles.
Drawbar: The towing hitch that connects to the tractor.
Tank: The most visible component (red on the Quivogne image). This is the main reservoir where the chemical mixture (water + product) is stored. Capacities vary widely, from 1,000 liters to over 6,000 liters for large models.
Pump: The “heart” of the system. It is typically powered by the tractor’s Power Take-Off (PTO) shaft. The pump draws liquid from the tank and pushes it under pressure to the booms.
Booms: The long, metal “arms” that extend horizontally. They are hydraulically folded for road transport. Modern booms feature suspension and auto-height control to maintain a consistent distance from the crop.
Nozzles: The small devices spaced regularly along the booms. They are precisely engineered to atomize the pressurized liquid into a spray mist with a specific droplet size and spray angle.
Control System: A computer or control box in the tractor cab that allows the operator to regulate pressure, flow rate, and turn boom sections on/off to prevent overlapping.
Tank Capacity: From 2,000 Liters (medium) up to 6,000+ Liters (large).
Boom Width (Working Width): From 12 meters / 40 ft (small) up to 36 meters / 120 ft or more (very large).
Tractor Power Requirement: It does not require high horsepower to pull, but needs enough to run the PTO pump and handle the heavy, filled weight (especially on hills). A tractor of 80 – 150 HP is generally sufficient.
