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Material | PE | Hose length | 1.2M |
Lance | stainless steel lance | Tank Capacity | 15L/20L |
Pump | Aluminium/Brass | N/W | 10kg |
Matched Engine | TU26/139/GX35 | size | 39*33*62cm |
Cylinder | 2 pieces | Pressure | 15-25KG/CM2 |
Igniting Model | Electronic ignition | Range | 12M |
Method of starting | Recoil Starting | Displacement | 25.5cc |
Mode of stop | type of once line shots out | Suction volume | 7-9L/min |
Mixed Fuel Ratio | 25:1 | Standard power(kw/r/min) | 0.7KW |
MOQ | 1 | Plunger Dia | 18mm |
Feature | Portable & low noise. | ||
Application | It's Suitable for controlling of pest and disease of a large area of crops , orchards, forestry, | ||
Our Advantage | Strong production capacity. | ||

The 20L Knapsack Power Sprayer is an electric-powered solution engineered for medium-scale spraying tasks, integrating portability with eco-friendly performance. Powered by a 12V lead-acid battery (96 watt-hours, WH) and a brushless pump, it achieves a working pressure of 0.65 megapascals (MP) and a spray rate of 500 milliliters per minute (mL/min). The 20-liter polyethylene (PE) tank is lightweight yet durable, and its IPX5 waterproof design protects electrical components from rain and liquid splashes. With a charging time of 4 hours and a continuous working duration of 2 hours, this sprayer is an excellent choice for users seeking cordless convenience without compromising on efficiency.
Equipped with a brushless motor that eliminates the need for carbon brush replacement, reducing maintenance costs and extending the sprayer’s service life.
Features battery over-discharge protection, which prevents damage to the battery from deep discharging. An LED power indicator is also included to show the remaining battery capacity, allowing users to plan charging times.
Offers adjustable pressure (0.3-0.65 MP) via a control knob, making it adaptable to various tasks—from delicate flower spraying to heavy-duty disinfection.
The sprayer’s nozzles are made of 316L stainless steel, and the pump head is constructed from PA66+30%GF material. These components resist corrosion from acidic and alkaline solutions, ensuring long-term durability.
Designed with a padded backrest featuring mesh ventilation and wide shoulder straps. These elements enhance comfort during 2-hour work sessions, reducing strain on the user’s back and shoulders.
Perfect for spraying insecticides on roses, tomatoes, and peppers in home gardens. The fine mist settings prevent damage to delicate petals, protecting the appearance and health of ornamental and edible plants.
Suitable for watering seedlings in nurseries. The adjustable nozzle allows users to control the flow rate, ensuring that young plants receive the appropriate amount of water without being overwatered.
Ideal for disinfecting public parks, schools, and offices. The cordless design enables unrestricted movement, allowing users to reach all areas that require disinfection.
Can be used to clean outdoor furniture and building facades. When paired with biodegradable detergents, it provides an eco-friendly cleaning solution, reducing environmental impact.
Q: Can the battery be replaced?
A: Yes, the lead-acid battery is replaceable. Under normal use, the battery has a typical lifespan of 500 charge-discharge cycles, ensuring long-term reliability.
Q: What is the spray particle size?
A: The spray particle size ranges from 50 to 300 micrometers (μm). It can be adjusted from coarse droplets (suitable for soil drenching) to fine mist (ideal for foliar application), meeting different spraying needs.
Q: How to clean the tank after using oil-based pesticides?
A: Rinse the tank with a mixture of water and detergent first, then follow with a rinse of pure water. Avoid using abrasive cleaners, as they may scratch the surface of the PE tank and reduce its lifespan.