Engineering Features and Spray Performance
Motorized power sprayers utilize a heavy-duty positive displacement brass piston or duplex plunger pump driven by an air-cooled internal combustion engine.
The pump generates continuous working pressures ranging from 20 to 35 kg/cm2, atomizing liquid spray into fine droplets with a vertical throw reaching into tall orchard canopies.
- Engine options: Fuel-efficient 2-stroke or low-emission 4-stroke petrol engines (typically 25cc to 35cc displacement).
- Chemical tank: Heavy-duty, UV-stabilized chemical tank with 20 to 25-liter capacity fitted with molded back cushions and ergonomic straps.
- Pressure regulator: Adjustable brass relief valve allows operators to dial in exact spraying pressures for herbicide or insecticide nozzles.
- High operating efficiency: Enables an operator to spray 4 to 6 acres per day compared to only 1 to 2 acres with manual knapsack sprayers.
Engine Maintenance and Government Subsidy Support
Routine engine maintenance ensures reliable pull-starting, prevents carburetor clogging, and extends pump seal longevity.
Farmers can acquire subsidized motorized power sprayers through the Sub-Mission on Agricultural Mechanization (SMAM).
- Fuel mixing: For 2-stroke engines, use the exact manufacturer ratio of 2T engine oil mixed into fresh petrol; clean fuel filters periodically.
- Pump flushing: Flush the brass pump with clean fresh water for 2 minutes after every spraying session to prevent chemical corrosion of seals.
- Subsidy support: Subsidies ranging from 40% to 50% are available for eligible smallholders under SMAM and state mechanization programs via agrimachinery.nic.in.
Official source
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Sub-Mission on Agricultural Mechanization (SMAM) ↗Related on KisanPe
Common questions
What is the working pressure of an Aspee motorized power sprayer?
It typically operates at adjustable pressures between 20 to 35 kg/cm2 (approximately 300 to 500 PSI), generating fine mist spray.
Why must the chemical tank and pump be flushed with clean water after use?
Flushing prevents chemical residue crystallization, valve corrosion, and degradation of internal rubber and Teflon pump seals.
Can farmers get a government subsidy on engine power sprayers?
Yes, farmers can apply for subsidies under the central SMAM scheme through the official portal (agrimachinery.nic.in) or state agriculture departments.
General guidance, not personal advice. For your farm, ask your local Krishi Vigyan Kendra or agriculture officer.
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