14L/20L/26L Pest Control Duster Machine

 

Product Appearance

This backpack power sprayer-duster combines a chemical tank, 4-stroke power assembly and air delivery pipeline, offered in 3 tank capacities: 14L, 20L and 26L to match varied working requirements.

Chemical Tank: Large-capacity milky white PE storage tank with a wide orange tank lid for easy filling and cleaning. A dosage adjustment knob on the tank controls the feeding rate of liquid or powder agents. The corrosion-resistant tank body adapts to both liquid pesticides and powdered agrochemicals.

Power Assembly: Powered by the 140FA single-cylinder 4-stroke gasoline engine. The compact orange power module sits on a reinforced base, paired with padded backpack straps and ergonomic backrest frame, which relieves pressure and reduces fatigue during long-duration field operations. Compared with 2-stroke engines, this 4-stroke unit runs smoother, generates less noise and lower exhaust emissions.

Air Delivery Assembly: Composed of large flexible corrugated hose, elbow pipe, long elbow pipe and telescopic nozzle, fitted with an integrated control handle. The spray tube supports multi-angle adjustment. High-speed airflow delivers long-distance spraying for upward, horizontal and angled application on tall crops.

 

Features

This air-blast dual-purpose machine supports both liquid spraying and dry dusting. The 140FA four-stroke gasoline engine drives the built-in fan to generate powerful airflow.

Dusting Mode: Dry powder is transported and dispersed by strong airflow to achieve uniform coverage. Suitable for pesticide powder, lime powder and granular agent spreading.

Spraying Mode: After simple accessory conversion, high-speed airflow breaks liquid into fine mist droplets. The mist boasts excellent penetration to go through dense crop and tree canopies.

140FA 4-Stroke Engine: Single-cylinder, air-cooled four-stroke design with robust power output. Stable ignition and consistent performance deliver strong wind pressure for far spraying range. The integrated control handle allows flexible adjustment of airflow and material feed to control application density. It adopts separate oil and fuel feeding, no mixed oil required for easier operation.

Dual-function design. Switch between spray and dust modes by replacing spare parts, with adjustable feed flow for various agrochemicals. Multiple tank size options for users to select based on field area.

 

Application Scenarios

Agricultural & Forest Plant Protection: Pest and disease control for orchards, tea plantations, vineyards and field crops. Ideal for tall fruit trees on hilly land; air blast penetrates thick tree canopies efficiently.

Sanitary Disinfection: Large-area disinfection for livestock farms, greenhouses and public spaces with dry powder disinfectants.

Other Applications: Forest pest prevention, warehouse sanitization, lime powder spreading for pest repelling, greenhouse humidity regulation and more.

Equipped with 4-stroke power, this backpack sprayer duster provides stronger power and cleaner combustion than traditional 2-stroke models, greatly improving working efficiency. It is a premium choice for commercial growers, large plantations and professional agricultural service teams. It operates independently without mains electricity, well suited for remote farmlands, hills and orchards.

 

 

Product Name	14L/20L/26L Pest Control Duster Machine
Model	3WF-3S(14L/20L/26L)
Fan Rotation Speed	6500r/min
Tank Capacity	14L, 20L, 26L
Range(m)	≥11m
Matched engine	140FA
Displacement	37.7cc
Standard Power	1kw/6500r/min
Fuel Tank Capacity	0.6L
Mixed Fuel Ratio	92# gasoline oil
Method of Starting	Recoil Starting
Igniting Mode	No Touch of Ignition
N.W.	9kg(14L)/9.5kg(20L)/10kg(26L)
G.W.	12kg(14L)/12.5(20L)/13kg(26L)
Packaging Size	490*410*725mm, 490*410*765mm, 490*410*770mm
Qty/20'GP	175pcs, 165pcs, 155pcs
Qty/40'HQ	415pcs, 390pcs, 365pcs