What Is a Speed Sprayer?
A speed sprayer is an agricultural implement designed to spray chemicals while in motion, sometimes abbreviated as “SS.” These are primarily used in orchards to prevent pest infestations, significantly reducing labor, especially on large farms. A speed sprayer typically comprises a driver’s seat, a blower and pump for spraying chemicals, and an engine.
Uses of Speed Sprayers
Speed sprayers are essential for pesticide application in orchards, enabling efficient coverage of large areas. They are versatile and can be adapted for various orchard environments, such as standing trees and trellises. Different driving systems, like 4WD and 6-wheel drive, cater to various terrains, including slopes and uneven surfaces.
Features of Speed Sprayer
Pros
- Improved Pest Control Efficiency: With a large fan, speed sprayers distribute chemicals in mist form over high elevations or broad areas. They can operate on slopes or soft ground, eliminating the need for manual pest control and increasing operational efficiency.
Cons
- Risk of Drift: The powerful fan airflow can scatter pesticides beyond the intended target, especially on windy days or near other crops.
Types of Speed Sprayers
1. Classification by Vehicle Body: Speed sprayers come in cabin and open types. Cabin types protect the operator from chemical exposure, while open types are less expensive but require protective gear for the operator.
2. Classification by Driving Type: Options include 4WD, 4WS (4-wheel steering), 6-wheel, and 3-wheel systems. Each is suited for specific field conditions and terrain challenges.
How to Select a Speed Sprayer
1. Field Type: Choose a sprayer designed for your specific orchard environment. Confirm compatibility with standing trees, terraced orchards, etc.
2. Chemical Tank Capacity: Capacities range from 500L to 1000L. Larger tanks offer greater efficiency for vast fields but are more costly. Select a tank that balances capacity needs and budget.
3. Driving Type: 4WD is suitable for soft ground, 4WS and 3-wheel for tight turns (3-wheel is less effective on inclines), and 6-wheel for stability on slopes and soft terrain.
4. Body Type: Choose between open and cabin types based on budget and safety requirements. Open types are cheaper but require additional protective gear for the operator.
How to Use a Speed Sprayer
1. Starting the Engine: Ensure the pump and fan are off before starting to prevent malfunctions or accidents.
2. Filling the Chemical Tank: Add water to the tank.
3. Starting the Spray Pump: Lubricate the piston with a few drops of engine oil before starting to prevent malfunctions.
4. Mixing the Chemical: After adding the chemical, close the spray nozzle and agitate the mixture well. Always follow the manufacturer’s dilution instructions.
5. Starting to Spray: Once stable airflow from the blower fan is confirmed, open the spray valve to begin spraying.